- A client is scheduled to receive several units of packed red blood cells following significant blood loss from trauma. Which complications associated specifically with receiving large volumes of stored blood should the LPN/VN monitor for and report?
Answer: Hypocalcemia and hypothermia.
Large-volume transfusion carries specific metabolic and thermal risks. Stored blood contains citrate preservative, which binds calcium in the recipient's bloodstream and can cause hypocalcemia manifesting as paresthesias, muscle cramps, and tetany. Large volumes of refrigerated blood can also lower the recipient's core body temperature, causing hypothermia. A blood warmer may be used to address this risk. Hyperkalemia can occur with massive transfusion due to potassium leaking from stored red cells, but fluid volume excess rather than deficit is the typical circulatory consequence. Metabolic alkalosis, hypomagnesemia, and hypernatremia are not primary complications of large-volume blood product transfusion.
- A client who began receiving a blood transfusion 30 minutes ago reports severe lower back pain and the LPN/VN observes dark, tea-colored urine in the urinary catheter bag. Which action should the nurse take first?
Answer: Stop the transfusion and notify the RN immediately.
Severe lower back pain and dark (hemoglobinuric) urine during a transfusion are the classic presentation of an acute hemolytic transfusion reaction, the most life-threatening type. The first action must be to stop the transfusion immediately to prevent further infusion of the incompatible blood product, then notify the RN. Administering analgesics and continuing the transfusion would allow more incompatible blood to enter the client, worsening the reaction and risking acute renal failure. Slowing the rate does not stop the harmful antigen-antibody reaction. Oral fluid intake does not address the underlying emergency; IV fluid management in this situation is an RN and provider decision.
- The nurse has notified the PHCP. While awaiting further orders, which task should the nurse perform?
Answer: Send the blood bag and the attached tubing back to the blood bank.
The blood bag and all attached tubing must be preserved and returned to the blood bank intact following a suspected transfusion reaction. The blood bank will perform testing on the remaining blood product — including rechecking the crossmatch, blood type, and performing a direct antiglobulin test — to confirm whether an incompatibility occurred and identify its cause. This information is critical for patient safety, legal accountability, and blood bank quality processes. Additionally, a post-reaction urine specimen is typically collected to check for hemoglobinuria. Ambulation (B) is contraindicated for a hemodynamically unstable client. Disposing of the blood bag (C) would destroy the evidence needed for investigation and is a serious error. Increasing the infusion rate (D) is dangerous and directly contraindicated — the transfusion has been stopped due to a suspected reaction and must not be restarted without explicit PHCP orders after investigation.
- A client is 10 minutes into a blood transfusion when he suddenly reports severe lower back pain and the LPN/VN notes that blood pressure has dropped from 118/76 to 88/52 mmHg. Which sequence of actions should the nurse perform?
Answer: Stop the transfusion, maintain IV access with normal saline through new tubing, and then notify the RN immediately.
Severe lower back pain and acute hypotension during a blood transfusion are the hallmark signs of an acute hemolytic reaction, the most dangerous transfusion complication. The correct priority sequence is to stop the transfusion immediately to prevent further infusion of incompatible blood, maintain IV access with normal saline through new tubing to preserve vascular access for emergency treatment, and then notify the RN. Administering analgesics and slowing the rate does not address the reaction and allows ongoing harm. Continuing to monitor without stopping is dangerous. Notifying the RN before stopping delays the most critical protective action; stopping the transfusion must come first.
- The nurse is monitoring the client's urine output following the reaction. Which finding would indicate a successful stabilization of the client?
Answer: The client produces 30 to 50 mL of clear, yellow urine per hour.
Adequate urine output of 30 to 50 mL per hour that is clear and yellow indicates that the kidneys are being adequately perfused and are successfully filtering — confirming that acute tubular necrosis from hemoglobin precipitation in the renal tubules has been avoided. This is the key outcome measure following a suspected hemolytic transfusion reaction. Choice A (dark, tea-colored, or smoky urine) is the opposite of a good sign — this appearance indicates hemoglobinuria, meaning free hemoglobin from destroyed red blood cells is being filtered by the kidneys and signals impending or active renal injury. Choice C (back pain moving to the chest) suggests progression or complication, not stabilization. Choice D (sustained hypotension at 90/60 mmHg for two hours) indicates the client is NOT stabilizing and remains in hemodynamic compromise.
- For how long should the nurse remain at the bedside to monitor the client when the transfusion first begins?
Answer: The first 15 minutes of the infusion.
The nurse must remain at the bedside for the first 15 minutes of a blood transfusion — corresponding to approximately the first 50 mL infused at a standard initial rate — because this is the period during which severe, potentially fatal reactions such as acute hemolytic reactions are most likely to manifest. During this window, the client has the highest exposure to any incompatible blood, and early recognition is critical to minimizing harm. Five minutes (A) is insufficient to detect all early reactions. Waiting until 100 mL has infused (C) exposes the client to twice the volume of blood before the critical monitoring period concludes, significantly increasing risk if an incompatibility exists. Remaining for the entire transfusion (D) is not required for all clients and is not practical; periodic monitoring is appropriate after the initial critical period in stable clients.
- Which information must the nurse include in the documentation?
Answer: The unit number, start and end times, and the client's response.
Accurate and complete documentation of a blood transfusion is both a legal requirement and a professional accountability standard. Required elements include: the blood product type and unit identification number (for traceability and reaction investigation), the start and end times (for 4-hour time limit compliance and timing of any reaction), and the client's response throughout and after the transfusion (including vital signs at intervals and any adverse signs or symptoms). The type of IV catheter (A) is not a required transfusion documentation element, though IV access information may be documented elsewhere. The delivery technician's name (B) is a blood bank chain-of-custody record but is not required in the nurse's clinical documentation. Room temperature (D) has no clinical bearing on transfusion documentation.
- A client has just started receiving a unit of packed red blood cells. Which infusion rate should the LPN/VN maintain during the first 15 minutes of the transfusion?
Answer: 25 to 50 mL/hr to allow close monitoring for early signs of a transfusion reaction.
The first 15 minutes of a blood transfusion represent the highest-risk period for reactions. Standard practice requires a slow infusion rate of 25 to 50 mL/hr during this time while the nurse monitors the client closely. If no reaction occurs after 15 minutes, the rate may be increased to complete the unit within the required 4-hour window. Initiating at 100 to 125 mL/hr or the full prescribed rate immediately bypasses the critical slow-start monitoring period and increases the risk of a severe reaction going undetected. A rate of 75 mL/hr is also too fast for the initial monitoring phase.
- A client develops hives and reports itching across the chest 10 minutes after a blood transfusion is started. Which is the priority nursing action?
Answer: Stop the transfusion immediately and maintain IV access with normal saline through new tubing.
The priority action when any transfusion reaction is suspected is to stop the transfusion immediately to prevent further infusion of the causative blood product. IV access is maintained with normal saline infused through new tubing, not the blood tubing, to keep the line open for emergency medications. Slowing the rate is not appropriate when a reaction is actively occurring. The RN must be notified promptly, but only after stopping the transfusion - the stop must come first. Documentation and vital signs are important but are not the first priority when a reaction is occurring.
- The nurse recognizes that the client's drop in blood pressure and increased heart rate most likely indicates:
Answer: The client is developing severe cardiovascular compromise consistent with an acute hemolytic transfusion reaction.
Hypotension and compensatory tachycardia in the setting of a blood transfusion, combined with the hallmark symptom of sudden low back pain and systemic signs of flushing and restlessness, indicate severe cardiovascular compromise from an acute hemolytic transfusion reaction. This is caused by complement activation and massive cytokine release triggered by antibody-mediated destruction of incompatible red blood cells — a distinct mechanism from anaphylaxis but equally life-threatening, capable of progressing to shock, disseminated intravascular coagulation, and acute kidney failure. An expected volume response (A) would increase blood pressure, not decrease it. A febrile non-hemolytic reaction (C) produces fever and chills but does not typically cause the hemodynamic instability seen here. Circulatory overload or TACO (D) presents with elevated blood pressure, pulmonary crackles, and respiratory distress — not hypotension — because it results from excessive volume, not fluid loss.
- Which action should the nurse take first?
Answer: Measure and record the client's temperature, pulse, respirations, and blood pressure.
Establishing a complete set of baseline vital signs — temperature, pulse, respirations, and blood pressure — is the essential first action before initiating any blood transfusion. These values serve as the reference against which all subsequent measurements during the transfusion are compared; any clinically significant deviation can indicate an early transfusion reaction and must be identified promptly. Without a documented baseline, the nurse cannot determine whether a change in temperature, heart rate, or blood pressure represents a new finding or a pre-existing condition. Bowel sounds and abdominal girth (A) are not relevant pre-transfusion parameters. A pre-transfusion meal (C) is not required and has no bearing on transfusion safety. Weight and height (D) are useful clinical data but are not the pre-transfusion priority.
- The nurse should recognize this as which type of reaction?
Answer: Mild allergic reaction.
Localized urticaria (hives) and a rash confined to one body area, without systemic symptoms such as throat tightening, bronchospasm, hypotension, or respiratory distress, are the hallmark presentation of a mild allergic reaction to plasma proteins in the donor blood. This is an IgE-mediated hypersensitivity response. Importantly, mild allergic reactions are the one category of transfusion reaction where some protocols permit the transfusion to be temporarily stopped, an antihistamine administered, and the transfusion cautiously restarted if symptoms fully resolve — in contrast to all other reaction types where permanent discontinuation is required. An acute hemolytic reaction (A) presents with flank pain, fever, and hemodynamic instability — not isolated skin findings. A febrile reaction (C) presents with fever and chills without urticaria. Bacterial contamination (D) causes high fever, rigors, and rapid hemodynamic collapse — not localized hives.
- A client received two units of packed red blood cells over 6 hours and now reports shortness of breath. The LPN/VN auscultates crackles in both lung bases and notes a blood pressure of 158/94 mmHg. Which complication should the nurse report to the RN?
Answer: Transfusion-associated circulatory overload.
Dyspnea, bilateral crackles, and hypertension following transfusion are hallmark signs of transfusion-associated circulatory overload (TACO), which results from fluid excess overloading the cardiovascular system. TACO occurs more frequently in elderly clients and those with cardiac or renal insufficiency. Acute hemolytic reaction presents with low back pain, dark urine, and hypotension. Transfusion-related acute lung injury also presents with acute hypoxia and bilateral pulmonary infiltrates but is characterized by hypotension rather than hypertension and does not result from volume overload. Febrile non-hemolytic reactions present with fever and chills without respiratory compromise.
- A client with liver failure is ordered to receive fresh frozen plasma (FFP). The LPN/VN understands that FFP is most likely ordered for which therapeutic purpose in this client?
Answer: To replace clotting factors that the impaired liver is unable to synthesize.
Fresh frozen plasma contains all clotting factors and is indicated when a client has coagulopathy related to factor deficiency. In liver failure, the liver's ability to synthesize clotting factors (including factors I, II, V, VII, IX, and X) is impaired, resulting in elevated PT/INR and increased bleeding risk. FFP replaces these deficient factors. Packed red blood cells, not FFP, are used to raise hemoglobin and hematocrit. Platelet concentrates, not FFP, are indicated for thrombocytopenia. While FFP provides some volume expansion, this is not its primary indication in liver failure; albumin or crystalloids are preferred for volume replacement alone.
- Which description best characterizes transfusion-related acute lung injury (TRALI)?
Answer: Acute hypoxia and bilateral pulmonary infiltrates occurring within 6 hours of transfusion in the absence of circulatory overload.
TRALI is defined as new acute lung injury presenting with hypoxia and bilateral pulmonary infiltrates occurring within 6 hours of blood product administration, without evidence of pre-existing acute lung injury or circulatory overload. It is caused by donor antibodies or biological mediators reacting against recipient leukocytes, triggering capillary leak in the pulmonary vasculature. A delayed hemolytic reaction occurs 3 to 14 days post-transfusion through a different antibody mechanism. Pulmonary edema from fluid excess describes transfusion-associated circulatory overload. A febrile reaction caused by antibodies against donor leukocyte antigens describes a febrile non-hemolytic reaction.
- The nurse should recognize these findings as indicators of which complication?
Answer: Circulatory overload (TACO).
Transfusion-Associated Circulatory Overload (TACO) occurs when the volume or rate of blood infusion exceeds the cardiovascular system's capacity to handle the increased preload. In a client with pre-existing heart failure and a compromised left ventricle, even a standard transfusion can precipitate acute pulmonary congestion. The triad of new cough, bibasilar crackles (from fluid accumulating in the alveoli), and a bounding pulse (from increased stroke volume and venous congestion) is the classic TACO presentation. This is the most common serious transfusion complication in elderly or cardiac-compromised clients. Acute hemolytic reaction (B) presents with flank pain, fever, and hypotension — not fluid overload signs. Febrile non-hemolytic reaction (C) presents with fever and chills without respiratory or fluid overload signs. Mild allergic reaction (D) presents with urticaria and localized pruritus.
- The nurse should categorize this as which type of reaction?
Answer: Febrile non-hemolytic.
A febrile non-hemolytic transfusion reaction (FNHTR) is defined by a temperature increase of at least 1 degree C (1.8 degrees F) from baseline occurring during or shortly after a transfusion, without evidence of hemolysis or other identifiable cause. This is the most common type of transfusion reaction and is caused by cytokines that accumulate in stored blood or by recipient antibodies reacting against donor leukocytes. The 2 F rise with chills in the absence of back pain, hypotension, urticaria, or respiratory distress fits this profile precisely. Acute hemolytic reaction additionally features flank pain, hemoglobinuria, and hemodynamic instability. Circulatory overload presents with respiratory symptoms and hypertension rather than fever. Anaphylactic reaction presents with urticaria, bronchospasm, and severe hypotension, and notably can occur without fever.
- A client with a history of multiple previous transfusions is pre-medicated with acetaminophen and diphenhydramine before a scheduled blood transfusion. The LPN/VN understands that this pre-medication regimen is intended to reduce the risk of which type of reaction?
Answer: Febrile non-hemolytic reactions and mild allergic reactions.
Acetaminophen reduces fever associated with febrile non-hemolytic reactions, while diphenhydramine reduces histamine-mediated symptoms such as urticaria and pruritus seen in mild allergic reactions. Clients with a history of multiple prior transfusions are at higher risk for these reactions and are frequently pre-medicated. Acute hemolytic reactions result from ABO incompatibility and cannot be prevented by pre-medication; strict two-nurse verification is the preventive measure. Transfusion-associated circulatory overload is prevented by adjusting infusion rates and monitoring fluid balance, not by pre-medication. TRALI does not have an established pre-medication prevention strategy.
- Which action should the nurse take next?
Answer: Return the blood unit to the blood bank.
Blood products must be initiated within 30 minutes of leaving the blood bank's controlled refrigeration environment. At 45 minutes, this window has passed and the blood must be returned to the blood bank — it cannot be safely hung. Outside of controlled storage, the temperature of blood rises, creating conditions that promote bacterial growth and accelerate red cell breakdown, making the product both potentially contaminated and less therapeutically effective. Hanging the blood immediately (A) is unsafe because the 30-minute rule has already been violated; the product's safety can no longer be guaranteed. Placing the blood in the clinical unit's refrigerator (C) is not an acceptable solution — unit refrigerators are not regulated blood bank environments and are not approved for blood product storage. Microwaving (D) is strictly prohibited; it causes uneven heating, hemolysis, and destruction of the blood product.
- Which statement by the client indicates a correct understanding of the information?
Answer: I should let you know if I feel any back pain or have trouble breathing.
Back pain (particularly low back or flank pain) is a hallmark symptom of an acute hemolytic transfusion reaction, and shortness of breath can indicate circulatory overload, anaphylaxis, or TRALI — all of which require immediate intervention. The client correctly understands that these are critical symptoms to report. Choice B requires further teaching: pruritus (itching) during a transfusion is never 'normal' — it can be an early sign of an allergic reaction and must be reported promptly so the nurse can assess severity and determine whether to continue the transfusion. Normalizing itching teaches the client to tolerate a potentially worsening symptom without reporting it. Blood pressure does not typically increase significantly during a transfusion (C); a significant rise can indicate circulatory overload and a drop can indicate hemolytic or anaphylactic reaction. A burning sensation at the IV site (D) could indicate infiltration or phlebitis and should also be reported, not expected.
