Part of the ICU Emergencies Hub — browse every related guide in one place.
Blood transfusion administration is a high-alert clinical skill that applies across virtually every acute care nursing setting — medical-surgical floors, critical care, perioperative, emergency, and oncology. NCLEX consistently tests transfusion administration principles, reaction recognition, and nursing response. This guide covers both the clinical practice and the examination content.
| Blood Product | Volume | Primary Indication | Expected Effect |
|---|---|---|---|
| Packed Red Blood Cells (PRBCs) | ~250–350 mL per unit | Symptomatic anemia, acute blood loss, Hgb typically below 7–8 g/dL (threshold varies by patient acuity and symptoms) | Each unit raises Hgb by approximately 1 g/dL and Hct by 3% in average-size adult |
| Fresh Frozen Plasma (FFP) | ~200–250 mL per unit | Coagulopathy (liver failure, DIC, warfarin reversal), clotting factor replacement, massive transfusion protocol | Replaces all clotting factors; must be ABO-compatible; typically ordered in 2-unit increments |
| Platelets | ~50–70 mL per unit (apheresis single donor ~200–300 mL) | Thrombocytopenia (platelet count below 10,000, or below 50,000 with active bleeding or prior to procedures) | Expected rise of 30,000–50,000/uL per unit in non-refractory patient; must be administered rapidly (over 15–30 min) |
| Cryoprecipitate | ~10–20 mL per unit (given as pooled units) | Fibrinogen deficiency, DIC, von Willebrand disease (unresponsive to DDAVP), hemophilia A | Rich in fibrinogen, factor VIII, vWF, and factor XIII; ABO-compatible preferred but not always required |
| Albumin (5% or 25%) | Variable | Volume expansion, liver disease, spontaneous bacterial peritonitis, paracentesis | Not a blood transfusion (not cellular) but administered similarly; does not require type and screen |
Pre-transfusion verification is the safety system that prevents ABO-incompatible transfusions — the most catastrophic transfusion error. This step is NOT a formality. Two nurses (or one nurse and another licensed provider, per institution policy) must verify the following at the bedside with the blood product in hand:
| Verification Item | What to Check |
|---|---|
| Patient identity | Two patient identifiers (name + date of birth or MRN) verified against the patient's ID band AND the blood product label — patient actively identifies themselves if able |
| Blood bank number / crossmatch number | The number on the blood unit label must exactly match the blood bank requisition form |
| Blood type compatibility | Donor blood type on the label must be compatible with the patient's blood type on the requisition; ABO and Rh compatibility confirmed |
| Expiration date and time | Blood units expire; PRBCs are typically good for 42 days from collection but once released from blood bank, must be administered within 4 hours (or returned to blood bank within 30 minutes if not started) |
| Visual inspection | Blood product should be inspected for: abnormal color (purple-black may indicate bacterial contamination), clots, air bubbles, bag integrity |
| IV access patency | Minimum 20-gauge IV for PRBCs (18-gauge preferred for rapid transfusion); smaller gauge may collapse red cells; flush line with normal saline before and after |
Start slowly: Begin the transfusion at a slow rate — typically 25–50 mL/hour — for the first 15 minutes. The majority of severe transfusion reactions occur within the first 15 minutes of infusion, when the nurse must remain at the bedside.
Baseline vital signs: Obtain vital signs immediately before starting and 15 minutes after initiation. The comparison between baseline and early transfusion vital signs is the primary early warning signal for reaction. Any fever, blood pressure change, or respiratory change in the first 15–30 minutes should immediately raise concern for reaction.
Standard administration time: PRBCs are typically infused over 2–4 hours. The unit must be completed within 4 hours of leaving the blood bank (bacterial proliferation risk at room temperature). Patients with heart failure or fluid overload may receive more slowly; patients with severe acute hemorrhage may receive more rapidly.
Monitoring during transfusion: Vital signs are typically taken at 15 minutes, 30 minutes, 1 hour, and at completion. Any new symptom during transfusion — fever, chills, back pain, chest tightness, hives, shortness of breath, hypotension — requires stopping the transfusion immediately and notifying the provider.
| Reaction Type | Signs and Symptoms | Nursing Response |
|---|---|---|
| Acute Hemolytic Reaction (most dangerous) | Fever, chills, lower back/flank pain, red or brown urine (hemoglobinuria), hypotension, anxiety; may progress rapidly to shock, renal failure, DIC | STOP transfusion IMMEDIATELY; keep IV patent with NS; notify provider STAT; monitor urine output; send blood unit + new blood specimens to blood bank; support BP; prepare for aggressive intervention |
| Febrile Non-Hemolytic Reaction | Fever (temperature rise of 1°C or more), chills, headache; NO hemolysis; most common transfusion reaction | Stop transfusion; verify it is not hemolytic (rule out back pain, hypotension, hemoglobinuria); notify provider; administer antipyretics per order; if provider confirms FNHTR, may cautiously restart with new tubing |
| Allergic Reaction (mild) | Urticaria (hives), pruritus, localized flushing; no systemic symptoms | Stop transfusion; notify provider; administer antihistamine (diphenhydramine) per order; if symptoms resolve, provider may authorize restarting |
| Anaphylaxis (severe allergic) | Bronchospasm, laryngeal edema, stridor, severe hypotension, cardiovascular collapse; rare but life-threatening; risk is higher in IgA-deficient patients | STOP transfusion IMMEDIATELY; call rapid response or code; administer epinephrine per order/protocol; support airway; do NOT restart |
| TRALI (Transfusion-Related Acute Lung Injury) | Acute hypoxia, bilateral pulmonary infiltrates, non-cardiogenic pulmonary edema within 6 hours of transfusion; one of the leading causes of transfusion-related death | STOP transfusion; notify provider and blood bank immediately; supportive respiratory care (O2, possibly mechanical ventilation); diuretics are NOT effective (it is non-cardiogenic) |
| TACO (Transfusion-Associated Circulatory Overload) | Hypertension, dyspnea, crackles, S3 heart sound, pulmonary edema within hours of transfusion; most common in elderly, heart failure, or aggressive transfusion rates | Stop or slow transfusion; notify provider; elevate HOB; administer diuretics per order; O2 support |
Immunocompromised patients — bone marrow transplant recipients, patients with severe combined immunodeficiency, and patients receiving purine analog chemotherapy — may require irradiated blood products to prevent transfusion-associated graft-versus-host disease (TA-GvHD), a rare but highly fatal complication in which donor T-lymphocytes attack the host's tissues.
CMV-negative blood products may be ordered for CMV-seronegative patients who are pregnant, premature neonates, or immunocompromised, to prevent CMV transmission. Leukoreduced products may be an acceptable alternative to CMV-negative blood for CMV prevention in some clinical situations — verify with blood bank per institutional protocol.
Related guides: Medication errors in nursing | Fluids and electrolytes | ICU nurse skills | Cardiac arrhythmia nursing
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