{"url":"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","title":"Blood bank picks for AB-positive stab victim","domain":"chegg.com","imageUrl":"https://images.pexels.com/photos/6629394/pexels-photo-6629394.jpeg?auto=compress&cs=tinysrgb&h=650&w=940","pexelsSearchTerm":"blood transfusion hospital","category":"Other","language":"en","slug":"51ca5482","id":"51ca5482-1950-45da-81f0-d7e6af421240","description":"A blood bank homework problem describes selecting units for a trauma patient with group AB D-positive blood.","summary":"## TL;DR\n- A blood bank homework problem describes selecting units for a trauma patient with group AB D-positive blood.\n- Doctor orders 10 units RBCs stat; issue 2 uncrossmatched first from inventory with 8 O neg, 1 AB pos, others.\n- Tests knowledge of emergency transfusion priorities and compatible products for OR including FFP, platelets, cryo.\n\n## The story at a glance\nThis 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.\n\n## Key points\n- Patient: 45-year-old male, multiple stab wounds, group **AB D-positive**, antibody screen negative.\n- Initial order: **10 units RBCs STAT**; 2 units needed right away without crossmatch for ER.\n- 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).\n- For OR: Surgeon requests **4 RBCs**, **4 FFP thawed**, **1 plateletpheresis**, **10 CRYO thawed**; select types/temps after subtracting prior units.\n- FFP inventory: (2 AB pos), (5 AB neg), (7 A pos), (8 A neg), (5 B pos), (5 B neg).\n- Platelets: (1 A pos), (1 A neg), (1 B pos), (1 O neg).\n- CRYO pools (5 units each): (2 AB neg), (1 B pos), (2 A pos).\n\n## Details and context\nThe 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)\n\nAB patients can receive any RBC but prefer type-specific; O neg is universal donor. Inventory requires subtracting issued units for later selections.\n\nProducts 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.\n\nThis tests matching compatibility rules, like AB plasma preferred for AB patient, any platelets acceptable short-term.\n\n## Key quotes\nNone.\n\n## Why it matters\nBlood 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.","hashtags":["#bloodbank","#transfusion","#trauma","#nursing","#medicaleducation"],"sources":[{"url":"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","title":"Original article"},{"url":"https://quizlet.com/712397911/blood-product-administration-red-blood-cells-and-whole-blood-ce-flash-cards","title":""}],"viewCount":2,"publishedAt":"2026-04-14T23:36:09.173Z","createdAt":"2026-04-14T23:36:09.173Z","articlePublishedAt":null}