Blood and Blood Products Practice Test 1
Blood and Blood Products NCLEX Practice Test
Blood and Blood Products is a key topic within the NCLEX test plan, located under Physiological Integrity → Pharmacological and Parenteral Therapies → Blood and Blood Products. This section verifies transfusion safety, monitors reactions, and ensures accurate documentation. Each test contains 50 questions designed to mirror the difficulty and variety of the real exam.
This is the 1st part of the Blood and Blood Products series. To explore all practice tests under this topic, use the “Back to Main Topic” button at the end of the page.
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Blood and Blood Products Practice Test 1
A nurse is administering a blood transfusion to a client on the oncology unit. Which clinical manifestation indicates an acute hemolytic reaction to the blood?
- Low back pain
- Temperature of 101°F.
- Urticaria
- Neck vein distension
Explanation: Answer reason: Acute hemolytic reactions often present early with lumbar/flank pain from hemoglobinuria and renal involvement.
A client with B-positive blood is scheduled for a whole blood transfusion. Which finding requires nursing intervention?
- The available blood has been banked for two weeks.
- The blood available for transfusion is Rh-negative.
- The client has a peripheral IV of D5 1/2 normal saline.
- The blood available for transfusion is type O positive.
Explanation: Answer reason: Blood must be administered with 0.9% normal saline only; dextrose solutions (e.g., D5 1/2 NS) can cause hemolysis and clotting. A two-week storage time is acceptable; Rh-negative blood is safe for an Rh-positive recipient; type O-positive blood can be compatible with a B-positive recipient when crossmatched.
The nurse is caring for a 70-year-old client with hypovolemia who is receiving a blood transfusion. Assessment findings reveal crackles on chest auscultation and distended neck veins. What is the nurse's initial action?
- Slow the transfusion.
- Document the finding as the only action.
- Stop the blood transfusion and start the normal saline.
- Assess the client's pupils.
Explanation: Answer reason: Crackles and distended neck veins during a transfusion indicate circulatory overload (TACO). The initial priority is to slow the transfusion to reduce further fluid accumulation, then notify the provider and anticipate diuretics. Stopping the transfusion and running saline are reserved for acute transfusion reactions (e.g., hemolytic or allergic).
After a blood transfusion, a patient develops shortness of breath and crackles in the lungs. Which medication would the nurse expect to administer?
- Paracetamol
- Diphenhydramine
- Furosemide
- Hydrocortisone
Explanation: Answer reason: Dyspnea and lung crackles after a transfusion indicate transfusion-associated circulatory overload with pulmonary edema; treat with a loop diuretic such as furosemide to remove excess fluid.
The nurse is caring for a client with sickle cell disease who is scheduled to receive a unit of packed red blood cells. Which of the following is an appropriate action for the nurse when administering the infusion?
- Storing the packed red cells in the medicine refrigerator while starting the IV.
- Slow the rate of infusion if the client develops a fever or chills.
- Limit the infusion time of each unit to a maximum of four hours.
- Assess vital signs every 15 minutes throughout the entire infusion.
Explanation: Answer reason: Packed RBCs must be completed within 4 hours to prevent bacterial growth and hemolysis. Blood should not be stored in a unit refrigerator. Fever or chills suggest a transfusion reaction requiring stopping the transfusion. Vital signs are monitored per policy (e.g., before, 15 minutes after the start, and periodically), not every 15 minutes throughout.
Which of the following are indications for exchange blood transfusion?
- Rh or ABO incompatibility.
- Kernicterus, irrespective of serum bilirubin level.
- Nonobstructive jaundice with a serum bilirubin level of 20 mg/dL in preterm infants.
- All of the above
Explanation: Answer reason: Exchange transfusion is indicated for severe hemolysis from Rh/ABO incompatibility, for acute bilirubin encephalopathy (kernicterus), regardless of level, and for severe hyperbilirubinemia in preterm infants at high TSB thresholds (e.g., around 20 mg/dL). Thus, all listed options are correct.
Which type of blood administration set should the nurse use for a client requiring postoperative blood replacement?
- Micron-mesh filter
- Non-filtered blood administration set
- Special leukocyte-poor filter
- Microdrip administration set
Explanation: Answer reason: Postoperative reinfusion of shed blood requires a special leukocyte-reduction filter to remove leukocytes and microaggregates, thereby reducing febrile reactions and embolic risk. Routine micron-mesh filters are for standard donor blood; microdrip and nonfiltered sets are inappropriate.
A client is receiving a blood transfusion following surgery. In the event of a transfusion reaction, any unused blood should be?
- Sealed and discarded in a red bag.
- Flushed down the client's commode.
- Sealed and discarded in the sharps container.
- Returned to the blood bank.
Explanation: Answer reason: During a suspected transfusion reaction, the remaining blood product and tubing are returned to the blood bank for investigation; they are not discarded.
What is the amount of blood withdrawn during each transfusion?
- 5 mL
- 10 mL
- 15 mL
- 30 mL
Explanation: Answer reason: Exchange transfusion is done in small repeated aliquots to maintain stability; the standard amount withdrawn (and replaced) each time is 10 mL.
Which is a complication of blood transfusion?
- Hyponatremia
- Hyperkalemia
- Hypercalcemia
- Increase serum albumin.
Explanation: Answer reason: Stored blood leaks potassium from RBCs; rapid or large transfusions can cause hyperkalemia. Other options are not typical: citrate causes hypocalcemia (not hypercalcemia), hyponatremia and increased serum albumin are not standard complications.
A delayed transfusion-related complication is?
- Circulatory overload
- Septicemia
- Iron overload
- Hypocalcemia
Explanation: Answer reason: Iron overload develops after repeated transfusions and is a delayed complication, whereas circulatory overload, septicemia, and hypocalcemia are acute reactions occurring during or soon after transfusion.
A blood transfusion should be completed within four hours to?
- Prevent a haemolytic transfusion reaction.
- Prevent fluid overload.
- Prevent bacterial growth.
- Prevent hypothermia
Explanation: Answer reason: Blood products should not hang longer than 4 hours because room-temperature exposure increases the risk of bacterial proliferation. The limit is not aimed at preventing hemolytic reactions, fluid overload, or hypothermia.
What are the criteria for blood that is transfused during therapy?
- Blood should be stored at the rat's body temperature.
- Donor blood should be fresh (less than 3 days old).
- There is no need for cross-matching.
- None of the above.
Explanation: Answer reason: Transfused blood must be properly cross-matched for compatibility and stored between 1–6 °C, not at body temperature. Routine use of blood <3 days old is unnecessary unless for neonatal exchange transfusion.
Which of the following drug is used during Exchange blood transfusion?
- MgSo4
- Phenobarbitone
- Ca2+ gluconate
- Phenytoin
Explanation: Answer reason: During exchange transfusion, citrate in stored blood can cause hypocalcemia; calcium gluconate is administered to counteract citrate toxicity and prevent tetany and arrhythmias.
What is the amount of blood is Replace during each time of transfusion?
- 5 ml
- 15 ml
- 35 ml
- 40 ml
Explanation: Answer reason: During neonatal exchange transfusion, blood is withdrawn and replaced in small aliquots to maintain hemodynamic stability—typically about 5 mL at a time.
The choice of treatment for pathological jaundice, when Risk of kernicterus?
- Antibiotic therapy
- Oxygen therapy
- Phototherapy
- Exchange blood transfusion
Explanation: Answer reason: In severe hyperbilirubinemia with risk of kernicterus, the treatment of choice is exchange blood transfusion to rapidly reduce unconjugated bilirubin. Phototherapy is for moderate levels; antibiotics or oxygen do not address bilirubin levels.
A patient with haemophilia is brought to the emergency department after injuring his knee; the nurse should anticipate the need to administer?
- Fresh frozen plasma
- RBC
- Factor VIII concentrate
- Platelets
Explanation: Answer reason: Hemophilia A is a deficiency of factor VIII; acute bleeding (e.g., hemarthrosis after knee injury) is treated with infusion of factor VIII concentrate. RBCs or platelets do not correct the clotting defect, and FFP is less preferred when specific concentrates are available.
Which vessels use during Exchange blood transfusion commonly?
- Right umbilical artery
- Left umbilical artery
- Umbilical vein
- Juglar vein
Explanation: Answer reason: Exchange transfusion in neonates is usually performed via an umbilical vein catheter because it provides reliable central access with fewer complications than umbilical arteries or jugular access.
To verify the age of blood cells in a blood, the nurse will check which of the following?
- Blood type.
- Blood group.
- Blood identification number.
- Blood expiration date.
Explanation: Answer reason: The age of stored blood is determined by its storage time; the unit’s expiration date indicates how old the blood cells are. Blood type, group, and identification number do not indicate age.
A client with cancer received platelet infusions 24 hours ago. Which of the following assessment findings would indicate the most therapeutic effect from the transfusions?
- Hgb level increase from 8.9 to 10.6
- Temperature reading of 99.4°F
- White blood cell count of 11,000
- Decrease in oozing of blood from IV site
Explanation: Answer reason: Platelets improve hemostasis and reduce bleeding. A decrease in oozing from the IV site shows improved clotting. Hgb rise reflects RBC transfusion, WBC count is unrelated, and a low-grade fever is not a therapeutic effect.
The nurse is working in the trauma unit of the emergency room when a 24-year-old female is admitted after an MVA. The client is bleeding profusely and a blood transfusion is ordered. Which would the nurse be prepared to administer without a type and crossmatch?
- AB positive
- AB negative
- O positive
- O negative
Explanation: Answer reason: O negative packed RBCs are the universal donor and can be given in emergencies without prior type and crossmatch, especially appropriate for women of childbearing age. AB types are universal recipients, not donors, and O positive is not universally safe due to Rh factor.
After a nurse determines that a client is having a transfusion reaction and stops the transfusion, what action should the nurse take next?
- Remove the intravenous (IV) line
- Run a solution of 5% dextrose in water
- Run normal saline at a keep-vein-open rate
- Obtain a culture of the tip of the catheter device removed from the client
Explanation: Answer reason: After stopping the transfusion, the nurse should maintain IV access with normal saline using new tubing to keep the vein open and allow medications if needed. D5W is incompatible with blood, the IV should not be removed, and culturing the catheter tip is not indicated.
What is the highest priority nursing intervention for a newly admitted patient receiving a blood transfusion?
- Instruct the patient to report any itching, shortness of breath, or chest pain
- Warm the blood to room temperature before transfusion
- Documentation of blood transfusion in the patient’s chart
- Check the vital signs of the patient every 30 minutes from initiation of blood transfusion till completion
Explanation: Answer reason: Frequent vital-sign monitoring detects early transfusion reactions, which is the highest-priority safety action during blood administration. Teaching and documentation are important but not as urgent; warming blood is not routine.
What is the priority action for a nurse monitoring a 35-year-old male patient receiving a blood transfusion who has a respiratory rate of 24 and blood pressure of 90/60?
- Slow the infusion rate
- Immediately flush IV line with normal saline
- Immediately stop the transfusion
- Notify the doctor
Explanation: Answer reason: Signs of a potential transfusion reaction (hypotension, tachypnea) require the nurse to stop the blood immediately to prevent further exposure, then maintain IV with normal saline and notify the provider/blood bank.
What is the most appropriate initial nursing action for a patient receiving a blood transfusion who starts to exhibit fever, chills, and back pain?
- Notify the provider immediately
- Administer acetaminophen
- Stop the transfusion
- Complete a full set of vital signs
Explanation: Answer reason: Fever, chills, and back pain indicate a possible acute transfusion reaction; the priority is to immediately stop the transfusion to prevent further hemolysis/exposure, then maintain IV with normal saline and notify the provider.
What a sign of a blood transfusion reaction?
- Sleepiness
- Itchy skin
- Back pain
- Headache
Explanation: Answer reason: Acute hemolytic transfusion reactions commonly present with sudden low back/flank pain due to hemolysis and renal involvement; sleepiness is not typical, and itching or headache can occur but are less specific.
A client is receiving a blood transfusion and experiences shortness of breath and chest pain. What is the nurse's immediate action?
- Stop the transfusion
- Increase the transfusion rate
- Administer pain medication
- Encourage deep breathing exercises
Explanation: Answer reason: Shortness of breath and chest pain during a transfusion indicate a possible acute transfusion reaction. The first priority is to stop the transfusion to prevent further exposure and harm.
Which blood test should be performed before a blood transfusion?
- Prothrombin and coagulation time
- Blood typing and cross-matching
- Bleeding and clotting time
- Complete blood count and electrolyte levels
Explanation: Answer reason: Pretransfusion ABO/Rh typing with crossmatch ensures donor-recipient compatibility and prevents hemolytic reactions; the other tests are not required specifically to ensure transfusion compatibility.
During a transfusion, the nurse observes that the patient is becoming anxious and has developed urticaria; what type of reaction does this suggest?
- Anaphylactic reaction
- Acute reaction
- Febrile non-hemolytic reaction
- Allergic reaction
Explanation: Answer reason: Urticaria (hives) with anxiety during transfusion is characteristic of a mild allergic transfusion reaction. Febrile non-hemolytic reactions present with fever/chills, and anaphylaxis involves severe respiratory distress and hypotension.
Which blood product is primarily used to increase oxygen-carrying capacity in patients with anemia?
- Packed red blood cells
- Platelets
- Fresh frozen plasma
- Cryoprecipitate
Explanation: Answer reason: Packed RBCs provide hemoglobin to carry oxygen, correcting anemia. Platelets treat thrombocytopenia, FFP replaces clotting factors, and cryoprecipitate provides fibrinogen/vWF.
Under which condition should platelets not be administered?
- The platelet bag is cold
- The platelets are 2 days old
- The platelet bag is at room temperature
- The platelets are 12 hours old
Explanation: Answer reason: Platelets are stored and administered at room temperature with gentle agitation. A cold platelet bag indicates improper storage leading to dysfunction; therefore, do not administer.
In which of the following conditions is blood transfusion contraindicated?
- Bleeding hemorrhoids
- Haemophilia
- Haemorrhage
- Congestive cardiac failure
Explanation: Answer reason: Transfusion increases intravascular volume and can precipitate circulatory overload, which is dangerous in congestive cardiac failure. The other conditions are potential indications for blood products, not contraindications.
A client with an aplastic sickle cell crisis is receiving a blood transfusion and begins to complain of "feeling hot". Almost immediately, the client begins to wheeze. The nurse's first ACTION is to?
- Stop the blood infusion
- Notify the physician
- Take/record vital signs
- Send blood samples to lab
Explanation: Answer reason: Wheezing and feeling hot during a transfusion indicate a possible transfusion reaction. The priority is to stop the blood immediately to prevent further exposure; then keep the line open with saline, notify the provider, monitor vitals, and send samples.
Which woman is not a candidate for RhoGam?
- A gravida 4 para 3 that is Rh negative with an Rh-positive baby
- A gravida 1 para 1 that is Rh negative with an Rh-positive baby
- A gravida II para 0 that is Rh negative admitted after a stillbirth delivery
- A gravida 4 para 2 that is Rh negative with an Rh-negative baby
Explanation: Answer reason: Rho(D) immune globulin is given to unsensitized Rh‑negative mothers after exposure to Rh‑positive fetal blood (e.g., delivery of an Rh+ infant, miscarriage, stillbirth). It is not indicated when both mother and infant are Rh negative.
The following is true of patients who have received blood transfusions?
- There is no risk of disease transmission when just receiving blood components.
- There was no risk for contracting HIV prior to 1981.
- Patients who have received multiple transfusions have a higher risk for contracting an infectious disease.
- Hepatitis cannot be transmitted in blood transfusions.
Explanation: Answer reason: Risk of transfusion-transmitted infections increases with the number of exposures; options stating no risk for components, no HIV risk before 1981, or that hepatitis cannot be transmitted are false.
A client with severe anemia is to receive a unit of whole blood. In the event of a transfusion reaction, the first action by the nurse should be to?
- Notify the physician and the nursing supervisor
- Stop the transfusion and maintain an IV of normal saline
- Call the lab for verification of type and cross match
- Prepare an injection of Benadryl (diphenhydramine)
Explanation: Answer reason: At the first sign of a transfusion reaction, the priority is to stop the transfusion to prevent further exposure to the offending blood and keep the vein open with normal saline using new tubing. Other actions follow after stopping the transfusion.
The physician has ordered 2 units of whole blood for a client following surgery. To provide for client safety, the nurse should?
- Obtain a signed permit for each unit of blood
- Use a new administration set for each unit transfused
- Administer the blood using a Y connector
- Check the blood type and Rh factor three times before initiating the transfusion
Explanation: Answer reason: A Y-type blood administration set with an in-line filter and normal saline is the correct, safe equipment for transfusing whole blood. Separate consent for each unit is unnecessary, tubing does not have to be changed for every single unit, and verification is done by two qualified staff members—not three.
What is 1 unit of blood in millilitres?
- 450mL
- 500mL
- 550mL
- 600mL
Explanation: Answer reason: A standard unit of whole blood collected for transfusion is approximately 500 mL (including anticoagulant).
The best size cathlon for administration of a blood transfusion to a six year old is?
- 18 gauge
- 19 gauge
- 22 gauge
- 20 gauge
Explanation: Answer reason: A 20-gauge catheter is preferred for school-aged children to infuse blood products at appropriate rates while minimizing hemolysis and being easier to insert than an 18-gauge. A 22-gauge may be too small for optimal flow.
What laboratory test is often performed to confirm hemolytic transfusion reaction?
- Complete blood count (CBC)
- Coombs
- Blood culture
- Serum electrolyte levels
Explanation: Answer reason: The direct antiglobulin (Coombs) test detects antibodies bound to red blood cells and is used to confirm immune-mediated hemolysis after a transfusion reaction. CBC and electrolytes are nonspecific; blood cultures evaluate infection, not hemolysis.
A client with B negative blood requires a blood transfusion during surgery. If no B negative blood is available, the client should be transfused with?
- A positive blood
- B positive blood
- O negative blood
- AB negative blood
Explanation: Answer reason: For RBC transfusion, a B negative client can receive B− or O−. O negative is the universal donor for packed RBCs and is safe when B− is unavailable; Rh-positive or type A/AB blood would be incompatible.
Which type of transfusion reaction is characterized by hemolysis due to ABO incompatibility?
- Febrile non-hemolytic reaction
- Acute reaction
- Delayed reaction
- Allergic reaction
Explanation: Answer reason: ABO incompatibility triggers an acute hemolytic transfusion reaction with rapid intravascular hemolysis.
The cardiac nurse is preparing to administer one unit of blood to a client. Which interventions should the nurse implement? Rank in order of priority?
- Infuse the unit of blood at 20 gtts/min the first 15 minutes.
- Check the unit of blood and the client’s blood band with another nurse.
- Initiate Y-tubing with normal saline via an 18-gauge angiocatheter.
- Assess the client’s vital signs and lung sounds, and assess for a rash.
- Obtain informed consent for the unit of blood from the client.
Explanation: Answer reason: Correct priority sequence: 5 → 4 → 3 → 2 → 1. First obtain informed consent, then obtain baseline assessment (vital signs, lungs, skin), next establish IV and prime Y-tubing with normal saline, verify the unit with another nurse at the bedside, and finally begin the transfusion slowly for the first 15 minutes while monitoring.
The nurse is caring for a client with B-Thalassemia major. Which therapy is used to treat Thalassemia?
- IV fluids
- Frequent blood transfusions
- Oxygen therapy
- Iron therapy
Explanation: Answer reason: Beta-thalassemia major is managed with regular blood transfusions to maintain adequate hemoglobin; iron therapy is contraindicated and oxygen/IV fluids do not treat the underlying anemia.
For which of the following mother-baby pairs should the nurse review the Coomb's test in preparation for administering Rho (D) immune globulin within 72 hours of birth?
- Rh negative mother with Rh positive baby
- Rh negative mother with Rh negative baby
- Rh positive mother with Rh positive baby
- Rh positive mother with Rh negative baby
Explanation: Answer reason: Rho(D) immune globulin is indicated postpartum when an Rh-negative mother delivers an Rh-positive infant (and the mother is not already sensitized), so the nurse should review the Coombs test in this pairing.
A 52 year-old client is being transfused with one unit of packed cells. A half hour after the transfusion was initiated, the client complains of chills and a headache. The FIRST action of the nurse should be?
- Notify the physician
- Check the client's temperature
- Stop the transfusion
- Obtain a urine specimen
Explanation: Answer reason: Chills and headache shortly after starting a transfusion indicate a possible transfusion reaction. The priority is to stop the transfusion immediately to prevent further antigen exposure, then notify the provider and follow protocol.
What is the maximum flow rate of blood transfusion in drops per minute?
- 5 drop/min
- 10 drop/min
- 15 drop/min
- 20 drop/min
Explanation: Answer reason: Blood transfusions are typically infused at 10–20 gtt/min; the safe maximum is 20 drops per minute to deliver the unit within time limits while avoiding circulatory overload.
How often can a donor give blood?
- At any time
- Every 1 month
- Every 2 months
- Every 3 months
Explanation: Answer reason: Whole blood donation is typically allowed at 12-week (3-month) intervals to permit recovery of hemoglobin and iron stores and ensure donor safety.
A nurse has administered several blood transfusions over three days to a 12 year-old client with Thalassemia. What lab value should the nurse monitor closely during this therapy?
- Hemoglobin
- Red Blood Cell Indices
- Platelet count
- Neutrophil percent
Explanation: Answer reason: In thalassemia, transfusions aim to maintain hemoglobin around 9–10 g/dL to suppress ineffective erythropoiesis and prevent splenomegaly; therefore hemoglobin is the critical lab to monitor.
How much does one unit of fresh RBC transfusion increase the hematocrit value?
- 1 to 2%
- 2 to 3%
- 3 to 4%
- 4 to 5%
Explanation: Answer reason: One unit of packed RBCs typically increases hemoglobin by about 1 g/dL and hematocrit by roughly 3%, making 3–4% the best choice.
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