Compatibility Testing Flashcards
Compatibility testing is also known as ______.
Pretransfusion testing
What are the procedures in blood banking?
Proper specimen collection
Reviewing patient transfusion history
ABO, Rh, and antibody testing
Crossmatching
Actual transfusion
Blood type that is considered the safest to transfuse during emergency situations
O-negative
What is the most common error in compatibility testing?
Clerical error
What are the 3 categories of compatibility testing?
Pre-analytical procedures
Serological phase
Post-analytical procedures
What are the 4 ways of identifying patients?
Verbalization of name from the px themselves
Patient’s bracelet ID/tag
Asking the watcher
Asking the nurse
A patient’s bracelet ID should contain:
Patient’s full name
Hospital number
Name of physician (optional)
Age
Sex
Pre-transfusion testing must be done within _____ hours according to Harmening.
72
In the Philippines, pre-transfusion testing is done within _____ hours.
12
The usual additive used in blood banking
Ethylenediamine Tetraacetic Acid (EDTA)
Why is serum much preferred than plasma?
Serum has higher yield of antibodies and has no additives
Ideal tube used in blood banking samples
Pink top
Tube used in blood banking due to its practicality
Lavender top
What is ideally preferred? Serum or plasma?
Serum
When hemolysis is observed in the sample, should you reject or accept? Why or why not?
Reject sample. True hemolysis is a sign of positive reaction (complement activation)
The MTOD had a difficulty extracting blood from a 4 year old patient. The blood collected was meant for compatibility testing, and she explained that there was difficulty in extracting the blood since she kept resisting. She pre-labeled the tube to save time, which could be lost from the difficult extraction, and submitted the sample in the laboratory.
What was her mistake in this situation?
The MTOD pre-labeled the sample container
The MTOD had a difficulty extracting blood from a 4 year old patient. The blood collected was meant for compatibility testing, and she explained that there was difficulty in extracting the blood since she kept resisting. She pre-labeled the tube to save time, which could be lost from the difficult extraction, and submitted the sample in the laboratory.
What should you do as the medtech tasked in processing the sample?
Suspect hemolysis
Reject sample
In blood donation, what is the first thing that fis performed?
ABO / Rh typing
During antibody testing, you detected alloantibodies in the patient. What should be your next action?
Identify the antibody by performing a complete crossmatch
Give antigen-negative units for the antibody
