Blood bank picks for AB-positive stab victim

Source: chegg.com

TL;DR

• A blood bank homework problem describes selecting units for a trauma patient with group AB D-positive blood.
• Doctor orders 10 units RBCs stat; issue 2 uncrossmatched first from inventory with 8 O neg, 1 AB pos, others.
• Tests knowledge of emergency transfusion priorities and compatible products for OR including FFP, platelets, cryo.

The story at a glance

This Chegg question poses a scenario where a 45-year-old man with multiple stab wounds needs urgent blood products. The blood bank staff must select 2 RBC units immediately without crossmatch, then prepare more for surgery based on confirmed AB D-positive type and negative antibody screen. It is presented as a multi-part exam question (12-16) using a specific inventory list.

Key points

• Patient: 45-year-old male, multiple stab wounds, group AB D-positive, antibody screen negative.
• Initial order: 10 units RBCs STAT; 2 units needed right away without crossmatch for ER.
• Question 12 asks which 2 RBC units to issue first from inventory: (15 O pos), (4 B pos), (2 B neg), (5 A neg), (15 A pos), (1 AB neg), (1 AB pos), (8 O neg).
• For OR: Surgeon requests 4 RBCs, 4 FFP thawed, 1 plateletpheresis, 10 CRYO thawed; select types/temps after subtracting prior units.
• FFP inventory: (2 AB pos), (5 AB neg), (7 A pos), (8 A neg), (5 B pos), (5 B neg).
• Platelets: (1 A pos), (1 A neg), (1 B pos), (1 O neg).
• CRYO pools (5 units each): (2 AB neg), (1 B pos), (2 A pos).

Details and context

The problem simulates trauma transfusion protocols. For uncrossmatched RBCs in emergencies, even for known AB positive patients (universal plasma recipient, no anti-A/B), O neg units are often prioritized to avoid any risk until type-specific like AB pos are confirmed.[[1]](https://www.chegg.com/homework-help/questions-and-answers/45-year-old-man-admitted-er-multiple-stab-wounds-doctor-ordered-ten-units-rbcs-stat-two-un-q173855977)[[2]](https://quizlet.com/712397911/blood-product-administration-red-blood-cells-and-whole-blood-ce-flash-cards)

AB patients can receive any RBC but prefer type-specific; O neg is universal donor. Inventory requires subtracting issued units for later selections.

Products go to OR at standard temps: RBCs 1-6°C, thawed FFP/CRYO ~20-24°C room temp or as specified, platelets 20-24°C.

This tests matching compatibility rules, like AB plasma preferred for AB patient, any platelets acceptable short-term.

Key quotes

None.

Why it matters

Blood bank decisions in trauma affect survival by preventing reactions and conserving rare stock like O neg. Students learn to balance urgency with safety, applying real protocols for ER/OR settings. Watch for full solutions on Chegg, though paywalled, or similar quizlet drills.