A nurse is caring for a patient who received a blood transfusion 2 hours ago. Which assessment finding would be the most concerning and require immediate intervention?

Temperature elevation with chills post-transfusion indicates a potential transfusion reaction requiring immediate assessment. Other findings like mild BP changes, fatigue, or adequate urine output are less urgent.

Core Nursing Explanation Key Concept Analysis: This question assesses the nurse's ability to recognize and prioritize signs of a transfusion reaction. While all patient assessments are important, the NCLEX-RN requires you to identify the finding that signals a potential life-threatening complication requiring immediate nursing action. The key is differentiating between expected post-transfusion findings and abnormal, dangerous symptoms.

Answer Rationale: Key Point! A temperature elevation to 101.2°F (38.4°C) accompanied by chills, occurring within 2 hours of a transfusion, is a classic sign of a Febrile Non-Hemolytic Transfusion Reaction (FNHTR). While FNHTR is the most common type of reaction and is often not life-threatening, it must be treated as a potential emergency until proven otherwise. The immediate nursing action is to STOP the transfusion (if it were still running), keep the IV line open with normal saline, notify the physician, and monitor for progression to more severe reactions like sepsis or hemolysis. This finding is the most concerning because it is a definitive sign of a systemic reaction to the blood product.

Distractor Analysis:
• Watch out for confusion! Option 1 (Slight increase in blood pressure): This is often an expected and desired outcome in a patient with gastrointestinal bleeding who received blood for volume replacement. It indicates the transfusion may be helping to correct hypovolemia. It is not a sign of a reaction.
• Option 3 (Mild fatigue and drowsiness): This is a common, non-specific finding after any procedure or in an ill patient. It is not a hallmark symptom of an acute transfusion reaction and does not require immediate intervention.
• Option 4 (Urine output of 50 mL in the past hour): This equates to 0.83 mL/kg/hr for a typical adult, which is within the acceptable minimum range (>0.5 mL/kg/hr). It indicates adequate renal perfusion and is a positive assessment finding, not a concerning one. A concerning finding would be significantly decreased or absent urine output, which could indicate a severe reaction like Transfusion-Related Acute Lung Injury (TRALI) or hemolytic reaction.

Related Concepts: The nurse must be vigilant for all types of transfusion reactions, which can be immediate (within 24 hours) or delayed. Immediate reactions include Acute Hemolytic Reaction (most severe, often due to ABO incompatibility), Febrile Non-Hemolytic Reaction (FNHTR), Allergic Reaction (mild urticaria to anaphylaxis), and Transfusion-Related Acute Lung Injury (TRALI). The mnemonic "FATAL HARM" can help recall critical signs: Fever, Anxiety/Tachycardia, Allergic symptoms (hives, itching), Low back pain (hemolytic), Hypotension, Anuria, Rigors (chills), and Mucocutaneous bleeding (DIC).

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse on a medical-surgical unit. Mr. Johnson, a 45-year-old with a history of peptic ulcer disease, was admitted for acute GI bleed. He is alert but pale. He just had his second unit of packed red blood cells (PRBCs) completed about 2 hours ago. During your routine post-transfusion assessment, he tells you he suddenly feels very cold and is shivering.

Nursing Intervention Strategy: 1. Immediate Action (First 2 minutes): Even though the transfusion is complete, you immediately assess his vital signs. You find Temp 101.5°F, HR 110, BP stable. You notify the physician immediately and document the findings thoroughly, including the time the reaction started relative to the transfusion end time. 2. Assessment & Monitoring: Perform a focused assessment. Check for other signs: inspect skin for rash or hives (allergic reaction), ask about pain (especially low back pain - sign of hemolysis), assess respiratory status for dyspnea or crackles (TRALI), and check urine color (hemoglobinuria - dark, tea-colored). 3. Post-Reaction Care: The physician will likely order antipyretics (e.g., acetaminophen) and possibly antihistamines (e.g., diphenhydramine). Continue to monitor vital signs every 15-30 minutes until stable. The blood bag and tubing must be saved and sent to the lab per hospital protocol for investigation.

Patient Safety and Precautions: • Key Point! The single most important safety action during an active transfusion is to STOP THE INFUSION immediately at the first sign of a potential reaction. • Always keep the IV line patent with normal saline using new tubing to administer any emergency medications if needed. • Never medicate a patient prophylactically with antipyretics or antihistamines before a transfusion unless there is a documented history of recurrent febrile or allergic reactions, as this can mask the early signs of a more serious reaction.

Nursing Procedure & Medication Flow Procedure for Managing a Suspected Transfusion Reaction: 1. STOP the transfusion. 2. Keep the IV line open with Normal Saline (0.9% NaCl) using new IV tubing. 3. Notify the physician and blood bank immediately. 4. Monitor vital signs and assess the patient (ABCs - Airway, Breathing, Circulation). 5. Save the blood bag, tubing, and any filtered components. Send them to the lab with a completed transfusion reaction form. 6. Collect new blood samples from a different site than the transfusion line as ordered (usually for repeat type and crossmatch, direct antiglobulin test, CBC, haptoglobin, etc.). 7. Document everything meticulously: time reaction started, symptoms, vital signs, actions taken, and patient response.

A Word from Your Senior Nurse "In real clinical practice, a post-transfusion fever is a huge red flag. Never dismiss it as 'just a little fever.' Your vigilance in connecting the timing of the symptom to the recent transfusion is what makes you a safe nurse. Always think: 'Could this be a reaction?' That mindset protects your patient. For the NCLEX, they love to test your ability to pick out the one finding that is abnormal and dangerous from a list of normal or expected findings. Remember, fever + chills + recent blood product = stop and assess!"