Compatibility Testing

How many unique identifiers must the patient have?

2

Must confirm this using ID band attached to patient

What is the anticoagulant of choice for compatibility testing?

EDTA, and no hemolysis or IV fluid

When someone is reciveing a blood transfusion, their sample must be collected no more than ___ days.

3

T or F: RBC and Plasma-based products must be ABO identical?

False! Must be ABO compatible

D-positive recipients can get either D-pos or D-neg

D-negative recipients should get D-neg

How does a crossmatch work?

Mix recipient plasma with donor cells

Compatible cross match: NO agglutination or hemolysis seen

Incompatible cross match: Agglutination or hemolysis seen

List the required confirmation testing of donor units?

• Temperature check (usually done by carrier)

• Visual check (ex. No growth, color, ect)

• ABO/Rh confirmation of RBC units (only front typing)

• Rh of unit checked

  • Rh negative units must be tested for weak D

A crossmatch is not required for which components?

FFP, Cryo, Platelets, granulocytes

What is the purpose of an immediate spin crossmatch?

Mainly used to detect ABO incompatability

What is the purpose of an Antiglobulin phase crossmatch?

Used when clinically significant antibody may cause a reaction

What is the purpose of a computer cross match?

Money saver that expedites process and lessens handling in low-risk cases

What is allocating(tagging)?

Applying label or tag that contains recipient and donor unit information to selected donor unit

• Legibility, correctness, completeness

Explain the purpose and situations in which uncrossmatched RBC units would be issued.

Patient who needs blood urgently: stabilize condition; group O red blood cells issued