Question 1

What is the full form of "CBC"?

Accepted Answer

Answer reason: CBC is the standard abbreviation for Complete Blood Count, a common laboratory test that measures components of blood such as red blood cells, white blood cells, hemoglobin/hematocrit, and platelets. The other options are not recognized medical expansions of CBC. Therefore, the correct full form is Complete Blood Count.
Category reason: The item tests recognition of a common lab-test abbreviation and its meaning, which falls under Laboratory Values & Diagnostics rather than nursing interventions or clinical prioritization.

Question 2

Sphygmomanometer is used to check?

Accepted Answer

Answer reason: A sphygmomanometer is the instrument used to measure arterial blood pressure, typically providing systolic and diastolic readings in mmHg. It is used with an inflatable cuff and (for manual measurement) a stethoscope to detect Korotkoff sounds. Heart rate is typically assessed by palpation or ECG, glucose by glucometer, and temperature by a thermometer.
Category reason: The question tests identification of a diagnostic/assessment device and what vital sign it measures, which fits foundational diagnostics/measurement knowledge rather than nursing clinical decision-making.

Question 3

CT scan is most commonly used to detect?

Accepted Answer

Answer reason: CT (computed tomography) provides detailed cross-sectional imaging and is widely used to identify acute hemorrhage, many tumors/masses, and bony injuries such as fractures. It is commonly the first-line imaging in trauma and suspected internal bleeding because it is fast and sensitive for blood and structural injury. Skin infections and muscle cramps are primarily clinical diagnoses, and most eye defects are evaluated with ophthalmic examination and specialized eye tests rather than CT.
Category reason: The question tests knowledge of the typical clinical indications and diagnostic utility of a CT scan, which fits diagnostic testing/imaging under Laboratory Values & Diagnostics rather than nursing interventions.

Question 4

The best test for soft tissue is...?

Accepted Answer

Answer reason:  MRI test MRI provides the highest soft-tissue contrast resolution and is best for evaluating muscles, ligaments, tendons, cartilage, and many soft-tissue masses. Plain X-ray is best for bone and calcification, not soft tissues. Ultrasound can assess some superficial soft tissues but is operator-dependent and limited by body habitus and depth. CT is excellent for bone detail and acute trauma and can assess soft tissue, but generally has less soft-tissue contrast than MRI and involves ionizing radiation.
Category reason: This question tests knowledge of which imaging modality best visualizes soft tissue, which is a diagnostics/imaging concept rather than a nursing care decision, fitting Laboratory Values & Diagnostics.

Question 5

Minimum score in GCS is?

Accepted Answer

Answer reason:  3 The Glasgow Coma Scale (GCS) ranges from 3 to 15. The minimum possible total score is 3, which occurs when the patient scores the lowest in each component: Eye opening = 1, Verbal response = 1, and Motor response = 1. A score of 0 is not used in standard GCS scoring, and totals of 1 or 5 cannot represent the minimum across all three categories.
Category reason: This question tests knowledge of the numeric range and interpretation of the Glasgow Coma Scale, a standardized clinical assessment/diagnostic scoring tool rather than a nursing intervention decision.

Question 6

The nurse is caring for a client with a potassium level of 3.0 mEq/L. Which finding should the nurse anticipate?

Accepted Answer

Answer reason:  Muscle weakness A potassium level of 3.0 mEq/L indicates hypokalemia, which decreases skeletal muscle cell excitability and commonly causes generalized muscle weakness and cramps. Hypokalemia is also associated with decreased GI motility (constipation/ileus), not increased bowel motility. Tall, peaked T waves are a classic finding of hyperkalemia, whereas hypokalemia more often causes flattened T waves and prominent U waves on ECG.
Category reason: This question tests interpretation of a serum potassium value and the expected clinical manifestations/ECG correlations, which is primarily a laboratory value and diagnostics knowledge area rather than a nursing intervention or prioritization scenario.

Question 7

A nurse is reviewing the laboratory results of a client with suspected acute pancreatitis. Which laboratory value supports this diagnosis?

Accepted Answer

Answer reason:  Increased serum amylase Acute pancreatitis causes pancreatic enzyme leakage into the bloodstream, commonly raising serum amylase (and lipase). “Decreased serum lipase” is opposite of what is expected, since lipase typically increases and is more specific for pancreatitis. Elevated bilirubin may occur with biliary obstruction (a cause of pancreatitis) but is not the classic supportive diagnostic enzyme change. Low blood glucose is not typical; pancreatitis more often leads to hyperglycemia due to impaired insulin production.
Category reason: This item tests interpretation of laboratory findings (pancreatic enzymes) to support a diagnosis, which is primarily laboratory diagnostics knowledge rather than a nursing intervention or prioritization decision.

Question 8

Q: A client with COPD has ABGs: • pH = 7.32 • PaCO₂ = 58 mmHg • HCO₃⁻ = 30 mEq/L Which interpretation is correct?

Accepted Answer

Answer reason:  Respiratory acidosis, partially compensated The pH is low (7.32), indicating acidemia, and PaCO₂ is elevated (58 mmHg), making the primary disorder respiratory acidosis. The HCO₃⁻ is elevated (30 mEq/L), showing renal (metabolic) compensation is occurring. Because the pH is still abnormal (not 7.35–7.45), compensation is partial rather than full.
Category reason: This item tests interpretation of ABG and bicarbonate values to identify an acid–base disorder and compensation status, which is a core Laboratory Values & Diagnostics concept rather than a nursing intervention/priority scenario.

Question 9

Which of the following best defines a biopsy?

Accepted Answer

Answer reason: Removal of tissue sample for examination A biopsy is the removal of a small piece of tissue from the body so it can be examined under a microscope to diagnose conditions such as cancer, inflammation, or infection. Removing fluid from a body cavity describes aspiration (e.g., thoracentesis/paracentesis). Imaging internal organs refers to radiologic studies (e.g., ultrasound, CT, MRI). Injecting dye for diagnosis is contrast administration used in certain imaging procedures, not a biopsy.
Category reason: This item tests the definition of a diagnostic procedure (biopsy) rather than nursing interventions or prioritization, fitting Laboratory Values & Diagnostics within NursingScience.

Question 10

Glucometer is used for?

Accepted Answer

Answer reason: Blood sugar check A glucometer measures capillary blood glucose using a fingerstick sample and a test strip, providing a rapid bedside glucose value (mg/dL or mmol/L). It is used for monitoring diabetes and detecting hypo/hyperglycemia. It does not record ECG, measure blood pressure, or measure oxygen saturation (which requires a pulse oximeter).
Category reason: This question tests identification of a diagnostic monitoring device and what laboratory value it measures (blood glucose), which fits Laboratory Values & Diagnostics rather than a nursing prioritization/intervention scenario.

Question 11

Which radio elements is used to measure the speed of blood flow in human body?

Accepted Answer

Answer reason: Radio-Sodium Radioactive sodium (e.g., Na-24) has historically been used as a tracer that mixes rapidly within the bloodstream, allowing detection downstream to calculate circulation time and estimate blood flow velocity. Its gamma emissions can be externally detected with scintillation counters as it travels through vessels. Radio-iodine is mainly used for thyroid-related studies, radio-iron for red blood cell/hemoglobin studies, and radio-phosphorus for certain metabolic and hematologic labeling rather than measuring blood flow speed.
Category reason: This question tests knowledge of radioisotope tracers used in diagnostic measurement of blood flow, which is primarily a laboratory/diagnostic application rather than a nursing intervention decision.

Question 12

Which test is used to detect bone fracture?

Accepted Answer

Answer reason: X-ray Plain radiography (X-ray) is the first-line imaging test for detecting most bone fractures because it quickly visualizes cortical bone discontinuity, alignment, and displacement. MRI is better for soft tissues and occult stress fractures but is not the routine initial test for a suspected fracture. CT can further characterize complex fractures but is typically used after an X-ray or when X-ray is inconclusive. ECG is unrelated to bone imaging.
Category reason: This question tests knowledge of diagnostic imaging modalities used to identify fractures, which fits Laboratory Values & Diagnostics rather than nursing care prioritization or interventions.

Question 13

What is the normal range of Hemoglobin (Hb) in adult females?

Accepted Answer

Answer reason: 12–16 g/dL Normal adult female hemoglobin is typically about 12.0–16.0 g/dL in standard lab references. Values below this range suggest anemia (e.g., iron deficiency, chronic disease, blood loss), while sustained values above can be seen with polycythemia or chronic hypoxemia. The other options are either too low (10–12), more consistent with male ranges (14–18), or abnormally high (16–20) for adult females.
Category reason: This question tests a normal reference range for hemoglobin, which is a core laboratory value used in diagnostics rather than a nursing intervention/priority decision, so it fits Laboratory Values & Diagnostics within NursingScience.

Question 14

Which of the following tests can be performed to diagnose a hiatal hernia?

Accepted Answer

Answer reason: Barium swallow A barium swallow (esophagram) is a contrast radiographic study that can demonstrate herniation of the stomach through the esophageal hiatus into the thorax, making it a classic diagnostic test for hiatal hernia. Colonoscopy and a lower GI series evaluate the colon and distal bowel, not the esophagus/stomach junction. Plain abdominal x-rays are generally not sensitive for hiatal hernia and often cannot adequately visualize the esophageal hiatus without contrast.
Category reason: This question tests knowledge of which diagnostic study identifies a gastrointestinal condition (hiatal hernia), focusing on imaging/diagnostics rather than nursing interventions, so it fits Laboratory Values & Diagnostics.

Question 15

Hemoglobin is checked by....?

Accepted Answer

Answer reason: CBC Hemoglobin is measured as part of a complete blood count (CBC), which reports hemoglobin concentration and related red blood cell indices. Biopsy evaluates tissue pathology, while MRI and X-ray are imaging modalities and do not directly quantify hemoglobin. Therefore, CBC is the appropriate test to check hemoglobin.
Category reason: This question tests which laboratory test is used to measure hemoglobin, which is a core topic within laboratory diagnostics rather than nursing interventions or prioritization.

Question 16

Which sample is used for Troponin test?

Accepted Answer

Answer reason: Blood Troponin (I/T) is a cardiac biomarker measured in blood (serum or plasma) to detect myocardial injury, such as acute myocardial infarction. It is released into the circulation when cardiac myocytes are damaged, making venous blood the appropriate specimen. Sputum, CSF, and urine are not standard specimens for diagnostic troponin testing in routine clinical practice.
Category reason: This question tests which specimen is used for a specific diagnostic lab test (troponin), which is primarily Laboratory Values & Diagnostics rather than a nursing intervention/priority scenario.

Question 17

Normal value of Troponin-T is usually?

Accepted Answer

Answer reason: < 0.01 ng/mL Cardiac troponin T is normally undetectable or very low in the blood, and many standard references list a normal/negative value around

Question 18

Blood Glucose level is commonly expressed as........?

Accepted Answer

Answer reason: Milligram per deciliter Blood glucose is most commonly reported in clinical practice (especially in the U.S. and many exam contexts) as mg/dL. This unit reflects the mass of glucose per deciliter of blood and is used for fasting glucose and bedside glucometer readings. “mm of Hg” is a pressure unit, while parts per million and gram per litre are not the standard expression for routine blood glucose reporting.
Category reason: This question tests the standard unit used to report a lab value (blood glucose), which is part of Laboratory Values & Diagnostics rather than a nursing intervention or prioritization scenario.

Question 19

Which instrument would you grab to determine the concentration of an unknown colored solution?

Accepted Answer

Answer reason: A spectrophotometer measures light absorbance, which is directly related to the concentration of a colored solution based on Beer-Lambert law. The other instruments do not measure solution concentration.
Category reason: This question tests understanding of laboratory diagnostic tools and their appropriate use, aligning with Laboratory Values & Diagnostics.

Question 20

Which imaging is best for brain tumors?

Accepted Answer

Answer reason: MRI MRI provides superior soft-tissue contrast and multiplanar detail, making it the most sensitive and specific routine imaging modality for detecting and characterizing brain tumors. It better delineates tumor margins, edema, and involvement of adjacent structures compared with CT. CT is useful for acute hemorrhage or when MRI is contraindicated, but it is generally less sensitive for many intracranial tumors. Plain X-ray and ultrasound are not appropriate primary modalities for adult brain tumor evaluation.
Category reason: This question tests knowledge of diagnostic imaging modality selection (which study is best), which aligns with Laboratory Values & Diagnostics rather than nursing interventions or prioritization.

Question 21

What does Troponin-T test detect?

Accepted Answer

Answer reason: Heart Attack/Heart Muscle Injury Troponin T is a cardiac-specific protein released into the bloodstream when myocardial cells are damaged. Elevated troponin T is a key biomarker used to detect and support the diagnosis of acute myocardial infarction and other causes of heart muscle injury (e.g., myocarditis). It is not a test for kidney or liver function, and it does not diagnose lung infection.
Category reason: This question tests the interpretation of a specific blood test (troponin T) and what condition it indicates, which is best classified under Laboratory Values & Diagnostics rather than nursing interventions or care prioritization.

Question 22

Hypercalcemia is defined as serum calcium >?

Accepted Answer

Answer reason: 10.5 mg/dl Normal total serum calcium is approximately 8.5–10.5 mg/dL in most standard lab reference ranges. Hypercalcemia is therefore commonly defined as a total serum calcium level above the upper limit of normal, i.e., >10.5 mg/dL. Values such as 9.5 and 10.0 mg/dL are within the normal range, while 11.0 mg/dL represents more clearly elevated hypercalcemia but is not the threshold definition.
Category reason: This item tests the definition of an abnormal lab value (serum calcium) and its cutoff for hypercalcemia, which is primarily a Laboratory Values & Diagnostics knowledge question rather than a nursing intervention/priority scenario.

Question 23

Normal hemoglobin level in males?

Accepted Answer

Answer reason: 13,5–17.5 g/dL Adult male hemoglobin reference ranges are typically about 13.5–17.5 g/dL, varying slightly by laboratory and population. Options B and C are closer to typical female hemoglobin ranges and would underestimate normal male values. Option D places the lower limit too high for many standard adult male reference intervals.
Category reason: This question tests knowledge of a standard reference range for hemoglobin, which is a core laboratory value used in diagnostics rather than a nursing intervention or prioritization decision.

Question 24

Gold standard investigation for ischemic stroke?

Accepted Answer

Answer reason: MRI brain MRI, particularly diffusion-weighted imaging (DWI), is the most sensitive modality for early detection of acute ischemic infarction and can identify ischemia within minutes. Non-contrast CT is often the first test in acute stroke pathways because it is fast and excellent for excluding hemorrhage, but it is less sensitive early for ischemia. PET is not used routinely for acute ischemic stroke diagnosis, and EEG evaluates electrical activity rather than vascular ischemia.
Category reason: This is primarily a question about selecting the most accurate diagnostic imaging test for ischemic stroke, which falls under Laboratory Values & Diagnostics rather than nursing interventions or prioritization.

Question 25

What is the normal pH of urine?

Accepted Answer

Answer reason: 4.5 - 8.0 Normal urine pH is typically slightly acidic around 6, with an accepted physiologic range that can vary roughly from about 4.5 to 8.0 depending on diet, hydration, and systemic acid-base status. Very low values such as 1.0–3.0 are not physiologic for urine and would suggest error or extreme, uncommon conditions. Likewise, persistently very alkaline urine above 8.0 is not considered normal and may be seen with urea-splitting infections or old/contaminated specimens.
Category reason: This item tests knowledge of a normal laboratory/diagnostic parameter (urinalysis pH reference range), which is foundational biomedical knowledge rather than a nursing intervention or prioritization decision.

Question 26

In which type of sample is circulating tumor DNA most commonly detected?

Accepted Answer

Answer reason: Blood plasma Circulating tumor DNA (ctDNA) is a subset of cell-free DNA released into the bloodstream from tumor cells, so it is most commonly detected using plasma from a blood draw (“liquid biopsy”). Plasma is preferred over serum because clotting in serum can release additional genomic DNA from leukocytes, diluting the ctDNA signal. While ctDNA can sometimes be found in other body fluids (e.g., urine or saliva) in select contexts, plasma is the standard and most widely used specimen for ctDNA testing. Bone marrow aspirate is used for specific hematologic evaluations but is not the most common sample for ctDNA detection overall.
Category reason: This question tests knowledge of the standard diagnostic specimen used for ctDNA (“liquid biopsy”), which is a laboratory/diagnostic concepts topic rather than a nursing intervention or patient-care decision.

Question 27

What is the main clinical use of Troponin test?

Accepted Answer

Answer reason: Myocardial Infarction Diagnosis Troponin (I/T) is a cardiac-specific biomarker released into the bloodstream when myocardial cell injury occurs, making it central to diagnosing acute myocardial infarction. High-sensitivity troponin assays allow earlier detection and are interpreted using serial measurements to identify a rise and/or fall consistent with acute injury. While troponin can be elevated in other conditions (e.g., myocarditis, sepsis, renal failure), its primary clinical use is evaluating suspected acute coronary syndrome/MI.
Category reason: This question tests the purpose of a specific laboratory biomarker (troponin) and how it is used clinically to diagnose disease, which fits Laboratory Values & Diagnostics.

Question 28

In a patient undergoing surgery, it was vital to aspirate the contents of the upper gastrointestinal tract. After the operation, the following values were acquired from arterial blood sample: pH 7.55, PCO2 52 mm Hg and HCO3- 40 mmol/l. What is the underlying disorder?

Accepted Answer

Answer reason: D. Metabolic Alkalosis The pH is elevated, indicating alkalemia, and the bicarbonate level is markedly elevated, identifying a primary metabolic process. The elevated PCO2 represents hypoventilatory respiratory compensation rather than the primary disorder. Gastric suction removes hydrochloric acid (loss of H+ and Cl−), which classically leads to metabolic alkalosis and can be accompanied by volume depletion that sustains the alkalosis.
Category reason: This item tests interpretation of arterial blood gas values (pH, PCO2, HCO3−) to identify an acid–base disorder, which is primarily a diagnostics/lab interpretation competency rather than a nursing intervention decision.

Question 29

Sugars in urine are detected by -?

Accepted Answer

Answer reason: Benedict test Benedict’s test detects reducing sugars such as glucose by reacting with cupric ions in alkaline solution, producing a color change/precipitate proportional to concentration. This makes it a classic qualitative test for glycosuria in urine samples. Rothera’s test detects ketone bodies, Fouchet’s test is for bile pigments, and Ehrlich’s reagent is used for substances like urobilinogen/porphobilinogen rather than glucose.
Category reason: This question asks which laboratory test is used to detect sugar in urine, which is a diagnostics-focused concept rather than a nursing intervention or prioritization scenario.

Question 30

Which part of blood is used for testing diabetes?

Accepted Answer

Answer reason: Plasma Glucose testing for diabetes is commonly performed on plasma, which is the liquid component of anticoagulated blood used for many chemistry assays. Standard diagnostic criteria (e.g., fasting plasma glucose and 2-hour plasma glucose during an OGTT) are specifically defined using plasma measurements. WBCs and platelets are cellular components and are not used to quantify glucose, and serum (from clotted blood) can be used in some settings but is not the reference specimen for diagnostic definitions.
Category reason: This question tests which blood specimen component is used for laboratory glucose measurement in diabetes, making it a Laboratory Values & Diagnostics topic rather than a nursing intervention or prioritization scenario.

Question 31

Which separation technique is used to separate white blood cells from red blood cells?

Accepted Answer

Answer reason: Centrifugation It separates blood components based on density when spun at high speed, producing layers (plasma, buffy coat with white cells/platelets, and red cells). This is the standard laboratory method used to isolate cellular fractions from whole blood. Distillation separates liquids by boiling points, filtration does not reliably separate similarly sized blood cells, and chromatography is used for solutes/biomolecules rather than intact cells.
Category reason: This question tests a laboratory separation method used to process blood specimens, which fits Laboratory Values & Diagnostics rather than nursing interventions or prioritization.

Question 32

A client presents to the Emergency Department with a complaint of chest pain. Which serum laboratory test does the nurse check off on the laboratory slip as part of a protocol order to rule out an acute myocardial infarction?

Accepted Answer

Answer reason: Troponin Troponin (I/T) is the preferred cardiac biomarker for diagnosing acute myocardial injury due to its high sensitivity and specificity for myocardial infarction. It rises within hours of infarction and remains elevated for days, supporting detection even if presentation is delayed. LDH isoenzymes are outdated for MI evaluation, amylase is associated with pancreatic injury, and CK-MM reflects skeletal muscle rather than cardiac muscle (CK-MB would be the relevant CK fraction).
Category reason: This question tests selection of the appropriate serum cardiac biomarker used to evaluate suspected acute myocardial infarction, which is a laboratory/diagnostic knowledge focus rather than a nursing intervention or prioritization decision.

Question 33

True or False A patient with a sodium level of 125 mEq/L is experiencing hypernatremia.?

Accepted Answer

Answer reason: False A sodium level of 125 mEq/L is below the normal range (about 135–145 mEq/L), which indicates hyponatremia rather than hypernatremia. Hypernatremia refers to an elevated serum sodium level, typically >145 mEq/L, and is commonly associated with water deficit. At 125 mEq/L, clinical concern is for neurologic symptoms from cerebral edema, especially if the drop is acute, and management focuses on identifying cause and correcting sodium carefully to avoid osmotic demyelination.
Category reason: This item tests interpretation of a serum electrolyte value and the correct terminology for an abnormal lab result, which best fits Laboratory Values & Diagnostics rather than a nursing intervention or prioritization task.

Question 34

Aneurysm can be diagnosed by?

Accepted Answer

Answer reason: Aneurysms can be evaluated using multiple imaging modalities depending on location and clinical context. CT (often CT angiography) provides rapid, high-resolution vascular detail and is commonly used in acute settings; MRI/MRA is also highly sensitive and avoids ionizing radiation. Ultrasound is a key first-line tool for certain aneurysms (e.g., abdominal aortic aneurysm screening and surveillance), so collectively all listed modalities can diagnose aneurysms.
Category reason: This item tests knowledge of diagnostic imaging modalities used to detect aneurysms, which fits Laboratory Values & Diagnostics rather than nursing care interventions.

Question 35

Q.1371: Guthrie test is used to detect—?

Accepted Answer

Answer reason: The Guthrie test is a classic newborn screening bacterial inhibition assay used to detect elevated phenylalanine levels, indicating phenylketonuria. Early detection is critical because untreated PKU leads to irreversible neurocognitive impairment, and dietary phenylalanine restriction prevents complications. Down syndrome is typically screened by prenatal/serum markers and diagnostic karyotyping, hypothyroidism by TSH/T4 newborn screening, and thalassemia by hemoglobin electrophoresis or related assays.
Category reason: This question asks which disease is detected by a specific screening test used in newborn screening, which is primarily a diagnostics/laboratory knowledge topic rather than a nursing intervention scenario.

Question 36

What has been approved by the FDA for Alzheimer’s diagnosis?

Accepted Answer

Answer reason: This refers to an FDA-authorized in vitro diagnostic blood test platform used to measure Alzheimer’s disease–associated biomarkers (e.g., amyloid beta ratios), supporting diagnostic evaluation. Compared with genetic or cognitive tests, it directly assesses disease-related pathology rather than risk or clinical performance alone. PET imaging can detect amyloid but the question asks specifically what FDA has approved as shown in the prompt, which is this blood-based assay approach. Blood biomarker testing can help triage or determine need for confirmatory testing in appropriate clinical contexts.
Category reason: This question asks about an FDA-approved diagnostic method for Alzheimer’s disease, which is primarily about diagnostic testing/biomarker measurement rather than nursing care decisions, fitting Laboratory Values & Diagnostics.

Question 37

ELISA test is used for diagnosis of?

Accepted Answer

Answer reason: ELISA is an immunoassay designed to detect specific antibodies or antigens in a patient sample and is classically used as a screening test for HIV infection. A reactive screening result is then confirmed with a more specific supplemental assay (e.g., differentiation immunoassay and/or nucleic acid testing). The other listed diseases have different standard diagnostic approaches (e.g., sputum microscopy/culture or NAAT for tuberculosis, Widal/culture for typhoid, and direct fluorescent antibody/RT-PCR for rabies).
Category reason: This is testing knowledge of what the ELISA laboratory test is used to detect/diagnose, which is a diagnostics-focused foundational science topic rather than a nursing care decision.

Question 38

A client has osteoporosis and a T-score of -2.9. What does this indicate?

Accepted Answer

Answer reason: A T-score compares bone mineral density to that of a healthy young adult; values of −2.5 or lower meet diagnostic criteria for osteoporosis. A result of −2.9 therefore indicates osteoporosis rather than osteopenia (−1.0 to −2.4) or normal bone density (≥ −1.0). This level is associated with increased fragility fracture risk and typically warrants evaluation and treatment planning, not reassurance.
Category reason: This item tests interpretation of a diagnostic measurement (DEXA T-score) and its threshold-based classification, which fits Laboratory Values & Diagnostics rather than nursing interventions.

Question 39

The test which determine the presence of Ab to HIV Ags(p24,P31)is?

Accepted Answer

Answer reason: C- western blot test Western blot detects patient antibodies against specific HIV proteins (including p24 and p31) and historically has been used as a confirmatory test after a screening assay. ELISA is primarily a screening test and does not provide the same specific band pattern against individual antigens. A p24 antigen test detects viral antigen rather than antibody, and immunofluorescence is not the standard confirmatory approach for identifying antibodies to these specific HIV antigens.
Category reason: This question asks which diagnostic laboratory test detects antibodies to specific HIV antigens (p24, p31), which is primarily about interpreting and selecting lab/diagnostic tests rather than nursing interventions.

Question 40

What is the normal range of adult respiratory rate?

Accepted Answer

Answer reason: Normal adult resting respiratory rate is typically 12–20 breaths/min, making this the standard reference range used in clinical assessment. Rates below this can indicate bradypnea (e.g., opioid effect, CNS depression), while higher rates suggest tachypnea from causes such as fever, pain, anxiety, hypoxemia, or metabolic acidosis. The other ranges listed are either too low for typical adults at rest or reflect tachypneic values.
Category reason: This item tests knowledge of a normal vital-sign reference range used during assessment and interpretation of patient status, aligning best with diagnostic/measurement norms rather than a nursing intervention decision.

Question 41

Q.1231: The first step in ABG (Arterial Blood Gas) interpretation is?

Accepted Answer

Answer reason: Determining acidemia versus alkalemia is the first decision point because it frames the direction of the disturbance. Once pH is identified as low or high, PaCO₂ and HCO₃⁻ are compared to see whether the primary process is respiratory or metabolic. Oxygenation values (PaO₂) are important but are typically interpreted after the acid–base status is established to avoid misclassifying the disorder.
Category reason: This tests the standard stepwise method for interpreting ABG results, which is part of interpreting laboratory/diagnostic values rather than making a bedside nursing intervention decision.

Question 42

Which test is used to assess jaundice?

Accepted Answer

Answer reason: Jaundice reflects elevated bilirubin and often hepatobiliary dysfunction or obstruction. Liver function tests assess bilirubin levels (total/direct) and associated enzymes (e.g., AST, ALT, ALP, GGT) that help differentiate hepatocellular injury from cholestasis. The other options do not evaluate bilirubin metabolism or hepatic excretory function and therefore do not directly assess jaundice.
Category reason: This question asks which laboratory investigation is used to evaluate jaundice, making it primarily a diagnostics-focused foundational science item rather than a nursing intervention scenario.

Question 43

Which of the following tests is designed to detect multiple types of cancer from a single blood sample before symptoms appear?

Accepted Answer

Answer reason: MCED (multi-cancer early detection) refers to blood-based screening tests intended to detect signals (e.g., circulating tumor DNA methylation patterns) from multiple cancer types in asymptomatic individuals. ELISA and Western blot are immunoassays typically used to detect specific proteins/antibodies rather than broadly screen for many cancers. RT-PCR amplifies specific nucleic acid targets and is not designed as a single, multi-cancer screening platform in general use.
Category reason: This question focuses on identifying a type of blood test used for cancer screening/diagnostics rather than nursing interventions or prioritization, so it fits Laboratory Values & Diagnostics within NursingScience.

Question 44

Sputum is commonly examined for all of the following except?

Accepted Answer

Answer reason: Sputum evaluation typically includes macroscopic (gross) characteristics, microscopy for cells/organisms, and microbiologic testing such as Gram stain (often with culture of sputum itself). Blood culture is a separate test performed on blood to detect bacteremia or systemic infection, not a routine component of sputum examination. While blood cultures may be ordered in severe pneumonia or sepsis, they are not part of the standard sputum specimen workup.
Category reason: This question tests knowledge of common diagnostic/laboratory evaluations performed on sputum specimens versus blood specimens, which aligns with Laboratory Values & Diagnostics rather than nursing interventions or prioritization.

Question 45

Which electrolyte imbalance causes muscle twitching and Trousseau’s sign?

Accepted Answer

Answer reason: Low serum calcium increases neuromuscular excitability, leading to paresthesias, muscle cramps, and twitching. Trousseau’s sign (carpopedal spasm precipitated by inflating a blood pressure cuff) is a classic clinical indicator of latent tetany from decreased ionized calcium. The other listed electrolyte disorders have different hallmark findings (e.g., hyperkalemia causes weakness and dysrhythmias; hyponatremia causes neurologic symptoms; hypomagnesemia can cause tremor/tetany but Trousseau’s sign is most classically associated with low calcium).
Category reason: This tests recognition of a classic physical sign and its associated electrolyte abnormality, aligning with interpretation of lab-related electrolyte disturbances rather than a nursing intervention scenario.

Question 46

Q. 920 IN MYOCARDIAL INFARCTION WHICH ENZYME RISES FIRST?

Accepted Answer

Answer reason: It is the earliest cardiac-related biomarker to increase after myocardial injury, often rising within about 1–2 hours, though it is not specific for cardiac muscle. CK-MB rises later (typically ~3–6 hours) and is more cardiac-specific than myoglobin but less specific than troponin. Cardiac troponins usually rise around ~3–6 hours and remain elevated for days, making them best for diagnosis but not the earliest. LDH rises much later and is not used for early detection.
Category reason: This question tests timing of serum biomarkers used to diagnose myocardial infarction, which is primarily about laboratory diagnostics rather than nursing interventions.

Question 47

Which condition is best evaluated by MRCP?

Accepted Answer

Answer reason: MRCP (magnetic resonance cholangiopancreatography) is an MRI technique specifically designed to visualize the biliary tree and pancreatic ducts noninvasively. It is particularly useful for detecting choledocholithiasis and identifying the level/cause of biliary obstruction (e.g., strictures). Stroke is evaluated with brain CT/MRI, renal artery stenosis with CTA/MRA/Doppler, and liver metastases are better assessed with contrast-enhanced CT/MRI of the liver rather than MRCP-focused sequences.
Category reason: This question tests knowledge of which imaging modality is most appropriate for evaluating biliary and pancreatic duct pathology, which falls under diagnostic imaging selection rather than nursing interventions.

Question 48

What is the normal range of fasting blood glucose?

Accepted Answer

Answer reason: This range aligns with commonly taught normal fasting plasma glucose values in nursing references, recognizing that many modern guidelines define normal as

Question 49

What is the correct term used to describe an intravenous injection of a concentrated volume of contrast media?

Accepted Answer

Answer reason: A rapid IV injection of a relatively concentrated amount of contrast given over a short time is termed a bolus, commonly used to achieve peak vascular enhancement during imaging. An infusion is delivered more slowly over time. Extravasation refers to unintended leakage of contrast into surrounding tissue rather than IV delivery. Luminal describes something within the lumen of a vessel or organ and is not a method of administration.
Category reason: This is testing diagnostic/imaging terminology related to contrast administration methods rather than a nursing intervention decision, fitting Laboratory Values & Diagnostics.

Question 50

Which of the following methods utilizes a detector that captures x-ray energy and converts it into an electronic signal?

Accepted Answer

Answer reason: Direct radiography systems use a flat‑panel detector where incoming x‑ray photons are converted directly into electrical charges (electronic signal) by a photoconductor (commonly amorphous selenium). This avoids the intermediate light conversion step used in indirect capture systems, which can slightly reduce spatial resolution. CCD and cassette-based computed radiography rely on different acquisition chains (light conversion and/or photostimulable phosphor plates) rather than direct x‑ray-to-charge conversion at the detector.
Category reason: This question tests knowledge of imaging detector technology and how radiographic systems convert x-ray energy into an electronic signal, which aligns with diagnostics rather than nursing care decisions.

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