Question 1

Yellow color of urine is due to presence of?

Accepted Answer

Answer reason: Normal yellow urine color is primarily due to urochrome (urobilin), a pigment formed from the breakdown of hemoglobin and excreted in urine. The intensity varies with hydration because urine concentration changes the pigment concentration. Bile pigments can darken urine in jaundice, but they are not responsible for normal yellow coloration. Lymph and cholesterol do not determine urine’s normal color.
Category reason: This question tests a basic physiologic fact about urine composition and normal urine coloration, which is foundational knowledge of the renal/urinary system rather than a nursing intervention or clinical judgment task.

Question 2

Hematuria is the presence of?

Accepted Answer

Answer reason: Hematuria is defined as the presence of blood (red blood cells) in the urine, which may be grossly visible or microscopic on urinalysis. Sugar in urine is termed glycosuria, protein in urine is proteinuria, and bile pigments in urine are associated with bilirubinuria. Therefore, the correct choice is blood in urine.
Category reason: This item tests the definition of a urinary finding and related terminology, which is foundational knowledge about the renal/urinary system rather than a nursing intervention or prioritization task.

Question 3

Which organ is called the root of life?

Accepted Answer

Answer reason: In many basic anatomy/health-education contexts, the kidneys are referred to as the “root of life” because they are essential for maintaining internal homeostasis. They regulate fluid volume, electrolytes, and acid–base balance and excrete metabolic wastes. Kidney failure rapidly leads to life-threatening derangements (e.g., hyperkalemia, severe acidosis, fluid overload), underscoring their critical role in sustaining life.
Category reason: The question tests foundational knowledge about the function/importance of an organ system (kidneys) rather than a nursing intervention or clinical decision, so it fits NursingScience under the Renal & Urinary System.

Question 4

What is a common symptom of a urinary tract infection (UTI) in adults?

Accepted Answer

Answer reason: A lower urinary tract infection commonly causes urinary frequency due to bladder/urethral mucosal irritation and inflammation. Adults often also report urgency, dysuria, and sometimes suprapubic discomfort. Blurred vision and excessive hunger are more consistent with metabolic issues (e.g., hyperglycemia) rather than UTI, and joint pain is not a typical primary UTI symptom.
Category reason: The item tests recognition of a classic symptom of a urinary tract infection, which is foundational knowledge about the renal/urinary system rather than a nursing intervention or prioritization decision.

Question 5

What condition is characterized by the inability to control urination?

Accepted Answer

Answer reason: Urinary incontinence is defined as the involuntary loss of urine, reflecting an inability to control urination. In contrast, urinary retention is the inability to empty the bladder effectively, which is the opposite problem. A urinary tract infection and kidney stones can cause urinary symptoms such as urgency, frequency, and pain, but they are not defined by loss of control as the core feature.
Category reason: This question tests a basic definition of a urinary disorder (inability to control urination) rather than a nursing intervention or prioritization scenario, which fits foundational content within the Renal & Urinary System.

Question 6

Which of the following is not a process of urine formation?

Accepted Answer

Answer reason: The core processes of urine formation in the nephron are glomerular filtration, tubular reabsorption, and tubular secretion. These steps determine the final composition and volume of urine before it reaches the renal pelvis. “Excretion” refers to the elimination of the final urine from the body (or the amount excreted), which is an outcome after formation rather than a formation process itself.
Category reason: This question tests foundational renal physiology concepts—how the nephron forms urine via filtration, reabsorption, and secretion—so it best fits the Renal & Urinary System subject area.

Question 7

In peritoneal dialysis, the dialysate is infused into the?

Accepted Answer

Answer reason: Peritoneal dialysis works by instilling dialysate into the peritoneal cavity, where the peritoneal membrane serves as the semipermeable membrane for diffusion of solutes and ultrafiltration of fluid. Dialysate is delivered via a peritoneal dialysis catheter into the abdominal (peritoneal) space, not into the gastrointestinal tract or urinary bladder. After a dwell time, the fluid is drained out, carrying waste products and excess water.
Category reason: This is a foundational question about where dialysate is infused and the basic mechanism of peritoneal dialysis, which is primarily renal system physiology/therapy knowledge rather than nursing prioritization or safety decision-making.

Question 8

Inflammation of urinary bladder is called....?

Accepted Answer

Answer reason: Inflammation of the urinary bladder is termed cystitis (cysto- = bladder, -itis = inflammation). Meningitis refers to inflammation of the meninges, arthritis to joints, and hepatitis to the liver. Therefore, the correct term for bladder inflammation is cystitis.
Category reason: This question tests medical terminology and basic disease naming within the urinary tract, which falls under the Renal & Urinary System subject area rather than nursing management or interventions.

Question 9

Ureter is also known as a...?

Accepted Answer

Answer reason: The ureters are muscular tubes that transport urine from each kidney (renal pelvis) to the urinary bladder via peristaltic contractions. Larynx and pharynx are upper airway structures and are unrelated to the urinary tract. Veins are blood vessels and do not carry urine. Therefore, the best description among the choices is "Tube.
Category reason: This is a basic identification question about a structure and function within the urinary tract, which falls under the Renal & Urinary System.

Question 10

The organ that filters blood and produces urine is...?

Accepted Answer

Answer reason: The kidneys filter the blood through nephrons to remove metabolic wastes (e.g., urea, creatinine) and regulate fluid, electrolyte, and acid–base balance. Filtrate formed at the glomerulus is processed through the renal tubules, ultimately producing urine that drains to the bladder. The liver metabolizes toxins and produces bile, the heart pumps blood, and the pancreas produces digestive enzymes and hormones, but none produce urine.
Category reason: This question tests foundational knowledge of the organ responsible for blood filtration and urine formation, which is core content of the Renal & Urinary System.

Question 11

Urine is stored in?

Accepted Answer

Answer reason: The urinary bladder is the hollow muscular organ that temporarily stores urine until micturition. The kidneys produce urine, the ureters transport urine from the kidneys to the bladder, and the urethra carries urine from the bladder to the outside. Therefore, the correct storage site is the urinary bladder.
Category reason: This is a foundational question about the structures and functions of the urinary tract, which is best classified under the Renal & Urinary System in NursingScience.

Question 12

Which of the following is a primary function of the kidneys?

Accepted Answer

Answer reason: A primary kidney function is to filter the blood via the glomeruli, removing metabolic wastes (e.g., urea, creatinine) and excess water/electrolytes to form urine. This filtration and subsequent reabsorption/secretion help maintain fluid, electrolyte, and acid–base balance. Insulin production is a pancreatic endocrine function, pumping oxygenated blood is the heart’s role, and nutrient absorption is primarily gastrointestinal (small intestine).
Category reason: The question tests foundational knowledge of kidney function (blood filtration and waste excretion), which is core content of the Renal & Urinary System in nursing science rather than a nursing judgment/action scenario.

Question 13

What is the structural and functional unit of the kidney?

Accepted Answer

Answer reason: The nephron is the kidney’s basic structural and functional unit responsible for filtration, reabsorption, secretion, and urine formation. It includes the renal corpuscle (glomerulus and Bowman’s capsule) and the renal tubules. A glomerulus alone is only the capillary tuft that performs filtration, not the entire functional unit. Neurons and alveoli belong to the nervous and respiratory systems, respectively.
Category reason: This is a foundational question about kidney structure and function (identifying the nephron as the functional unit), which is core content of the Renal & Urinary System rather than a nursing care decision.

Question 14

Which is not considered part of the nephron?

Accepted Answer

Answer reason: The nephron is the kidney’s functional unit and includes the renal corpuscle (glomerulus and Bowman’s capsule) and renal tubules (including the loop of Henle and related segments). The ureters are not part of the nephron; they are larger urinary tract structures that transport urine from the kidneys to the bladder. Therefore, “Ureters” is the option not considered part of the nephron.
Category reason: This item tests structural components of the kidney/urinary tract (what belongs to the nephron versus the ureter), which is foundational renal anatomy/physiology content rather than a nursing intervention or prioritization scenario.

Question 15

The renal blood flow (in ml/Mt) is...?

Accepted Answer

Answer reason: Normal renal blood flow is about 1.0–1.2 L/min, which is roughly 20–25% of cardiac output. Using common physiology approximations, this is often cited as ~1200 mL/min, and with plasma flow/hematocrit conversions and rounding in exam keys it is frequently given as ~1500 mL/min. Among the options provided, 1500 mL/min best matches the expected magnitude of total renal blood flow. The other values are too low to represent normal total renal perfusion.
Category reason: This item tests a normal physiologic value for kidney perfusion (renal blood flow), which is foundational renal physiology rather than a nursing intervention or clinical decision-making scenario.

Question 16

Which organ is responsible for filtering blood in the human body?

Accepted Answer

Answer reason: The kidneys are the primary organs responsible for filtering blood through the glomeruli, removing metabolic wastes (e.g., urea, creatinine) and regulating water, electrolytes, and acid-base balance. This filtration produces urine while conserving needed substances via tubular reabsorption. The heart primarily pumps blood, the lungs exchange gases, and the liver detoxifies/metabolizes substances but is not the main blood filtration organ in the sense of waste removal and urine production.
Category reason: This is a foundational question about which organ performs blood filtration, a core function of the renal/urinary system rather than a nursing intervention or clinical decision-making scenario.

Question 17

Which organ is affected in nephritis?

Accepted Answer

Answer reason: Nephritis literally means inflammation of the kidney ("nephr-" refers to kidney). It commonly involves inflammation of renal tissue, often the glomeruli (glomerulonephritis) or interstitium (interstitial nephritis), which can impair filtration and urine formation. Therefore, the organ affected is the kidneys, not the liver, heart, or lungs.
Category reason: This question tests basic biomedical knowledge of organ-system terminology and which organ is involved in a disease condition, which aligns with the Renal & Urinary System.

Question 18

Kidney stones are composed of…..?

Accepted Answer

Answer reason: The most common type of kidney stone is composed of calcium oxalate. Calcium bicarbonate and sodium chloride are not typical constituents of urinary calculi, and magnesium nitrate is not a recognized common stone composition. While other stones exist (e.g., uric acid, struvite, cystine), among the listed options calcium oxalate is clearly correct.
Category reason: This item tests foundational knowledge about the chemical composition of renal calculi, which is a core topic within the Renal & Urinary System rather than a nursing intervention or prioritization scenario.

Question 19

Which lab best reflects kidney perfusion in acute renal failure?

Accepted Answer

Answer reason: BUN (blood urea nitrogen) is most sensitive to renal perfusion because urea reabsorption increases when renal blood flow is reduced (prerenal azotemia). In acute renal hypoperfusion, BUN typically rises disproportionately compared with creatinine, increasing the BUN:creatinine ratio. Creatinine reflects GFR more specifically but is less directly tied to perfusion changes than BUN. Sodium and potassium may become abnormal in renal failure but do not specifically indicate renal perfusion.
Category reason: The question tests which laboratory marker best indicates renal perfusion in acute renal failure, which is a foundational concept in kidney function and renal pathophysiology within the Renal & Urinary System.

Question 20

Pus in urine is called?

Accepted Answer

Answer reason: Pus (increased white blood cells) in the urine is termed pyuria. Pyrexia refers to fever, not a urine finding. Pyelitis is inflammation/infection of the renal pelvis, and pyonephrosis is pus in the renal collecting system due to severe infection/obstruction—both are different from the general urine finding.
Category reason: This item tests a medical term describing a urinary finding, which is foundational knowledge of the renal/urinary system rather than a nursing intervention or prioritization decision.

Question 21

What is the structural and functional unit of kidney?

Accepted Answer

Answer reason: The nephron is the kidney’s basic structural and functional unit because it performs the essential processes of urine formation: filtration, reabsorption, secretion, and excretion. The glomerulus and Bowman’s capsule are components of a nephron that together form the renal corpuscle for filtration, but they are not the entire unit. The collecting duct participates in final urine concentration and transport, but it is not considered the fundamental unit of the kidney.
Category reason: This question tests foundational knowledge of kidney structure and function (identifying the basic unit responsible for urine formation), which is core content of the Renal & Urinary System in Nursing Science rather than nursing decision-making.

Question 22

The commonest cause of secondary HTN is?

Accepted Answer

Answer reason: Secondary hypertension is most commonly due to renal causes, including renal parenchymal disease and renovascular disease, which increase blood pressure via sodium/water retention and activation of the renin-angiotensin-aldosterone system. Liver disease is more associated with portal hypertension rather than systemic arterial hypertension. Heredity is a major risk factor for primary (essential) hypertension, not secondary hypertension. Heart disease is generally a consequence of hypertension rather than the most common cause of secondary HTN.
Category reason: The question tests the most common underlying medical cause of secondary (non-essential) hypertension, which is primarily related to renal pathophysiology and RAAS regulation, fitting the Renal & Urinary System subject area.

Question 23

Excretory unit of kidney is?

Accepted Answer

Answer reason: The nephron is the functional (excretory) unit of the kidney responsible for urine formation through filtration, reabsorption, secretion, and excretion. Bowman's capsule and the glomerulus are components of the renal corpuscle within a nephron and mainly participate in filtration. The loop of Henle is another segment of the nephron involved in concentrating urine, but it is not the entire unit.
Category reason: This item tests foundational knowledge of kidney structure and function—identifying the kidney’s functional unit—so it belongs to the Renal & Urinary System in NursingScience.

Question 24

Q. Renin is a hormone secreted by?

Accepted Answer

Answer reason: Renin is secreted by the juxtaglomerular (JG) cells of the kidney in response to decreased renal perfusion pressure, decreased sodium delivery to the macula densa, or sympathetic stimulation. Renin initiates the renin-angiotensin-aldosterone system (RAAS) by cleaving angiotensinogen to angiotensin I, ultimately increasing blood pressure and sodium/water retention. The liver produces angiotensinogen (not renin), and the stomach and pancreas do not secrete renin as a primary hormone.
Category reason: This item tests foundational knowledge of the source of renin and the RAAS, which is a core concept in renal physiology within the Renal & Urinary System.

Question 25

In which bodily organ is the loop of Henle?

Accepted Answer

Answer reason: The loop of Henle is a segment of the nephron, the functional unit of the kidney. It plays a key role in concentrating urine by creating an osmotic gradient in the renal medulla via countercurrent mechanisms. Because nephrons are located within the kidney, the loop of Henle is found in the kidney and not in the heart, liver, or lungs.
Category reason: This item tests identification of a specific nephron structure and its organ location, which is foundational renal anatomy/physiology rather than a nursing care decision, so it fits the Renal & Urinary System subject.

Question 26

What is the average GFR of an adult?

Accepted Answer

Answer reason: Average adult GFR is about 125 mL/min, which equals roughly 180 liters of filtrate produced per day (125 mL/min × 1440 min/day ≈ 180,000 mL/day). This reflects the volume of plasma filtered by glomeruli before tubular reabsorption. The 1500 mL/day option corresponds more closely to normal urine output, not GFR. The other values are far too low to represent normal renal filtration.
Category reason: This question tests a normal physiologic value for glomerular filtration rate and its daily equivalent, which is renal physiology rather than a nursing intervention or safety decision.

Question 27

Which Carries urine from the kidney to the bladder?

Accepted Answer

Answer reason: Urine formed in each kidney drains into the renal pelvis and then passes through the ureter to reach the urinary bladder. The larynx and pharynx are structures of the airway/digestive tract, not the urinary system. Veins carry blood, whereas ureters are specialized muscular tubes that propel urine via peristalsis.
Category reason: This question tests basic structure and function of the urinary tract—specifically the tube that transports urine from kidneys to the bladder—so it belongs to the Renal & Urinary System.

Question 28

Hematuria indicates presence of:

Accepted Answer

Answer reason: Hematuria literally means the presence of blood (erythrocytes) in the urine. It may be gross (visible) or microscopic and can result from conditions such as urinary tract infection, stones, trauma, or glomerular disease. The other options refer to different findings: sugar is glycosuria, pus is pyuria, and protein is proteinuria.
Category reason: This is a definition and interpretation of a urinary finding (hematuria) and therefore tests foundational knowledge of the renal/urinary system rather than a nursing intervention or prioritization decision.

Question 29

Which condition is most commonly associated with uric acid stones?

Accepted Answer

Answer reason: Uric acid stones are most commonly associated with increased uric acid production and/or excretion, classically seen with hyperuricemia (e.g., gout, high purine load). Uric acid is less soluble in acidic urine, promoting crystal formation and stone development. Hypocalcemia is not a typical driver of stone formation (hypercalciuria is), and cystinuria is specifically linked to cystine stones. Diabetes mellitus can be associated with uric acid stones via lower urine pH, but the most direct and classic association is hyperuricemia.
Category reason: This item tests the etiology/risk-factor association for a specific type of kidney stone (uric acid), which is foundational biomedical knowledge about the urinary system rather than a nursing intervention or prioritization scenario.

Question 30

The functional unit of the kidney is?

Accepted Answer

Answer reason: The nephron is the kidney’s functional unit because it performs the essential processes of filtration, reabsorption, secretion, and urine formation. Structures like the glomerulus and Loop of Henle are components within a nephron and contribute to these processes but do not represent the complete functional unit. The collecting duct participates in urine concentration and transport but is not considered the primary functional unit itself.
Category reason: This question tests foundational knowledge of kidney structure and function, specifically identifying the basic functional unit of the renal system, which falls under the Renal & Urinary System.

Question 31

Which condition increases the risk of struvite stones?

Accepted Answer

Answer reason: Struvite stones (magnesium ammonium phosphate) are classically associated with recurrent UTIs caused by urease-producing organisms (e.g., Proteus, Klebsiella), which alkalinize the urine and promote crystal formation. Therefore, recurrent urinary tract infections markedly increase the risk of struvite calculi. Gout is linked to uric acid stones, and hyperparathyroidism is linked to calcium stones. Dehydration increases overall stone risk but is not the key specific risk factor for struvite stones.
Category reason: The question tests the etiologic association between a kidney stone type (struvite) and a causative condition (urease-positive UTIs), which is foundational knowledge about renal stone pathophysiology rather than a nursing intervention or prioritization decision.

Question 32

Which diagnostic test is most commonly used to detect kidney stones?

Accepted Answer

Answer reason: Non-contrast CT of the abdomen/pelvis is the most commonly used and most sensitive test for detecting urinary tract calculi, including radiolucent stones that may be missed on plain films. It rapidly identifies stone size and location and can also evaluate alternative causes of acute flank pain. IVP is largely historical due to contrast exposure and lower diagnostic yield compared with CT. Ultrasound is useful (especially in pregnancy) but is less sensitive for ureteral stones than CT.
Category reason: The question tests knowledge of the preferred diagnostic modality for nephrolithiasis, a core topic within renal/urinary system assessment and diagnostics rather than nursing interventions or prioritization.

Question 33

Reservoir of urine Known as ;! ?????

Accepted Answer

Answer reason: The urinary bladder is the organ that serves as the reservoir for urine, storing it until micturition. Kidneys produce urine by filtering blood but do not function primarily as storage reservoirs. The spleen is involved in immune and hematologic functions, and the large intestine stores feces rather than urine. Therefore, the best answer is bladder.
Category reason: This question tests basic structure/function of the urinary tract, specifically which organ stores urine, which belongs to the Renal & Urinary System.

Question 34

Which organ stores urine?

Accepted Answer

Answer reason: The urinary bladder is the organ that stores urine until micturition occurs. Kidneys produce urine by filtering blood, but they do not serve as the primary storage reservoir. The liver and stomach are not part of the urinary storage pathway. Therefore, bladder is the single best answer.
Category reason: This question tests basic structure and function of the urinary tract—specifically which organ stores urine—so it belongs to the Renal & Urinary System in NursingScience.

Question 35

Which is a classic symptom of renal colic due to kidney stones?

Accepted Answer

Answer reason: Renal colic from ureteral obstruction by a kidney stone classically causes severe, sharp, cramping pain that comes in waves (intermittent) and is felt in the flank, often radiating toward the groin. The pain is typically not relieved by rest, and patients are often restless. Dull back pain is less characteristic of acute renal colic, and lower limb tingling is not a typical urinary stone symptom.
Category reason: This question tests recognition of the typical symptom pattern of nephrolithiasis/ureteral obstruction, which is core renal and urinary system pathology rather than a nursing intervention or prioritization task.

Question 36

Which organ is responsible for filtering waste from the blood to form urine?

Accepted Answer

Answer reason: The kidneys filter blood through nephrons, removing metabolic wastes (eg, urea, creatinine), excess electrolytes, and water to produce urine. This filtration occurs at the glomeruli, followed by tubular reabsorption and secretion to regulate fluid and electrolyte balance. The liver metabolizes toxins and produces bile, the pancreas aids digestion and glucose control, and the spleen primarily filters blood cells and supports immune function, not urine formation.
Category reason: The question tests foundational knowledge of which organ performs blood filtration and urine formation, which is core content of the Renal & Urinary System rather than a nursing intervention or prioritization task.

Question 37

Creatinine test is done for _?

Accepted Answer

Answer reason: Serum creatinine is a waste product of muscle metabolism that is primarily cleared from the body by glomerular filtration in the kidneys. When kidney function declines, creatinine clearance decreases and serum creatinine rises, making it a key marker used to assess renal function and estimate GFR. It is therefore most directly used for evaluating the kidneys rather than the heart, brain, or lungs.
Category reason: The question tests foundational knowledge about what organ system a common laboratory test (creatinine) evaluates, which is core Renal & Urinary System physiology and diagnostics rather than a nursing intervention or prioritization scenario.

Question 38

What is the most common type of kidney stone?

Accepted Answer

Answer reason: Calcium oxalate is the most common composition of renal calculi, accounting for the majority of kidney stones. These stones form when urine becomes supersaturated with calcium and oxalate, and risk increases with dehydration and certain dietary/metabolic factors. Struvite stones are typically associated with urease-producing UTIs and are less common overall. Uric acid and cystine stones are also less common and often linked to specific metabolic or genetic conditions.
Category reason: The question tests foundational knowledge of the most common type of renal calculus, a core concept in urinary system pathophysiology rather than a nursing intervention or prioritization scenario.

Question 39

Kidney stones are termed as.?

Accepted Answer

Answer reason:  Nephrolithiasis Nephrolithiasis is the medical term for the presence of calculi (stones) in the kidney. Nephritis refers to inflammation of the kidney tissue, not stones. Cystitis refers to inflammation/infection of the urinary bladder, not the kidneys.
Category reason: This question tests correct medical terminology for a renal condition (kidney stones), which is best categorized under the Renal & Urinary System rather than nursing interventions or prioritization.

Question 40

Why is the ureter-bladder anastomosis retracted into the bladder?

Accepted Answer

Answer reason:  To create a valve effect to minimize urinary reflux Retracting the ureter-bladder anastomosis into the bladder creates a submucosal tunnel that functions as a flap-valve: as the bladder fills and during voiding, pressure compresses the intramural ureter to prevent vesicoureteral reflux. This anti-reflux mechanism reduces retrograde flow of urine toward the ureter and kidney, lowering risk of upper-tract infection and hydronephrosis. The other options are not the primary physiologic rationale for retraction of the anastomosis.
Category reason: This question tests the anatomic/physiologic rationale of the ureterovesical junction (anti-reflux valve mechanism) rather than nursing interventions or prioritization, so it best fits Renal & Urinary System.

Question 41

Which organ filters Waste From the Blood?

Accepted Answer

Answer reason:  Kidneys The kidneys filter the blood through glomeruli, removing metabolic wastes (e.g., urea, creatinine) and excess water/electrolytes to form urine. This filtration and subsequent tubular reabsorption/secretion are central to maintaining homeostasis. The heart primarily pumps blood, and the lungs primarily exchange gases (O2/CO2) rather than filtering blood wastes.
Category reason: This question tests basic organ function—specifically the renal role in filtering wastes from blood—so it fits the Renal & Urinary System within NursingScience rather than nursing intervention/decision-making.

Question 42

MOST COMMON CAUSE OF CHRONIC RENAL FAILURE?

Accepted Answer

Answer reason:  Diabetes mellitus Diabetes mellitus is the leading cause of chronic kidney disease and end-stage renal disease in many populations due to diabetic nephropathy. Chronic hyperglycemia causes glomerular hyperfiltration, basement membrane thickening, and progressive albuminuria, ultimately reducing GFR over years. Hypertension is also a major cause and contributor, but it is generally second to diabetes as the most common primary etiology.
Category reason: This is a foundational medical knowledge question asking for the most common etiology of chronic renal failure, which is primarily studied within the Renal & Urinary System rather than requiring nursing interventions or prioritization.

Question 43

Which is a late sign of chronic kidney disease?

Accepted Answer

Answer reason: Uremic frost Uremic frost is a classic late-stage sign of severe uremia, typically seen in advanced kidney failure when very high urea levels are excreted in sweat and crystallize on the skin. Edema can occur earlier and throughout CKD due to sodium and water retention, so it is not as specific for late-stage disease. Polyuria is more typical in earlier CKD due to impaired concentrating ability and often progresses to oliguria/anuria in late stages.
Category reason: This question tests recognition of a clinical manifestation that reflects advanced renal failure (uremia), which is foundational knowledge within the Renal & Urinary System rather than a nursing intervention or prioritization task.

Question 44

Which of the following stones would be radiolucent?

Accepted Answer

Answer reason: Uric acid Uric acid stones are classically radiolucent on plain X-ray (KUB) because they do not contain calcium, so they may be missed on standard radiographs. In contrast, calcium oxalate and calcium phosphate stones are radiopaque. Struvite stones are also typically radiopaque due to their mineral content, while cystine stones are often faintly radiopaque rather than truly radiolucent.
Category reason: This question tests foundational knowledge of urinary stone composition and how different stone types appear on imaging (radiolucent vs radiopaque), which is core Renal & Urinary System science rather than a nursing intervention/prioritization scenario.

Question 45

Q. The usual capacity of urinary bladder in human is ..?

Accepted Answer

Answer reason: 500 ml The adult urinary bladder’s typical functional/usual capacity is about 400–600 mL, commonly cited as ~500 mL. The first urge to void often occurs at much lower volumes (around 150–200 mL), while overdistension can occur at higher volumes. Values like 800 mL or 1500 mL are above usual capacity and suggest significant distension rather than normal physiology, and 100 mL is below normal capacity.
Category reason: This is a foundational anatomy/physiology fact about normal urinary bladder volume, which falls under the Renal & Urinary System rather than nursing care decision-making.

Question 46

Which organ in the human body forms urine?

Accepted Answer

Answer reason: B) Kidneys The kidneys form urine by filtering blood through nephrons, removing metabolic wastes (e.g., urea, creatinine) and regulating water and electrolyte balance. Filtrate is modified via reabsorption and secretion along the renal tubules before becoming urine in the collecting ducts. The pancreas produces digestive enzymes and hormones, and the lungs exchange gases; neither forms urine.
Category reason: This question tests foundational knowledge of which organ produces urine, a core concept of the Renal & Urinary System rather than nursing interventions or clinical decision-making.

Question 47

What is the main function of the kidneys?

Accepted Answer

Answer reason: All of the above Kidneys filter blood to remove metabolic wastes and excess water/electrolytes, which forms urine. They also regulate blood pressure via sodium/water balance and the renin-angiotensin-aldosterone system. Because all listed functions are true physiologic roles of the kidneys, the best answer is "All of the above.
Category reason: This question tests foundational knowledge of kidney physiology and roles (filtration, urine formation, and blood pressure regulation), which fits the Renal & Urinary System in NursingScience rather than a nursing intervention/priority scenario.

Question 48

Which of the following is a common symptom of urinary tract infection (UTI)?

Accepted Answer

Answer reason: Increased urination A lower urinary tract infection commonly causes urinary frequency and urgency due to inflammation and irritation of the bladder mucosa. Decreased thirst is not a typical UTI symptom, and “pale-colored urine” is not characteristic (UTIs more often cause cloudy or foul-smelling urine). Fever can occur, but it is more suggestive of an upper UTI (pyelonephritis) rather than a common uncomplicated cystitis presentation.
Category reason: This item tests recognition of typical signs and symptoms of UTI, which is core content of the Renal & Urinary System in nursing science rather than a nursing intervention or prioritization decision.

Question 49

What is the primary function of the renal tubules in the nephron?

Accepted Answer

Answer reason: Reabsorption of water and nutrients Renal tubules (especially the proximal convoluted tubule, loop of Henle, and distal segments) primarily reabsorb filtered water, electrolytes, glucose, and amino acids back into the bloodstream. Filtration of blood occurs at the glomerulus (renal corpuscle), not the tubules. While tubules also perform secretion (e.g., H+, K+, drugs) and contribute to urine concentration, their main role is reabsorption of useful substances and water.
Category reason: This question tests the normal function of nephron components (renal tubules vs glomerulus), which is foundational renal physiology within the Renal & Urinary System.

Question 50

The nurse performs a physical assessment on a client and observes the following finding while the client has their arms extended. The nurse understands that this finding is consistent with?

Accepted Answer

Answer reason: End-stage renal disease The image depicts a flapping tremor (asterixis) when the arms are extended, a classic sign of metabolic encephalopathy due to toxin accumulation. In end-stage renal disease (uremia), impaired clearance of nitrogenous wastes can cause neurologic findings such as asterixis and altered mental status. Rheumatic fever is associated with migratory polyarthritis and chorea rather than asterixis. NMS presents with hyperthermia, rigidity, and autonomic instability, and HIV is not specifically associated with asterixis on exam.
Category reason: The question tests recognition of a classic physical exam sign (asterixis) and linking it to uremia from renal failure, which is primarily biomedical knowledge about renal pathophysiology rather than nursing interventions or prioritization.

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