Ordering Blood Components
Blood and blood components must be ordered by a Licensed Independent Practitioner (LIP)
such as a physician or nurse practitioner. Transfusions should only be
prescribed for a patient when the benefit of transfusion is likely to
outweigh the risk.
TRANSFUSION RELATED LABORATORY orders
Type & Screen (T&S)
T&S is a pre-transfusion laboratory test that consists of
ABO/Rh testing along with an antibody screen. A T&S is required
before blood components can be release for a patient. Having a T&S
ready and available for patients who may need a transfusion allows for
quicker dispensing of necessary blood component when the need is
- If the antibody screen is positive there will be an inherent delay to
find the correct component that is compatible for the patient. The
delay can range from 1-2 hours or possibly even days depending on the
All requests must include requesting physician's name
and ID number, patient's complete name, UH number, current account
number, patient location, clinical information/diagnosis, identity of
phlebotomist and verifier, and date/time of sample collection. The
specimen must be labeled with the patient's full name and UH number.
Specimens should be transported to the laboratory in a biohazard
specimen bag with the request form in the pocket of the bag. All
information must be complete and legible on the specimen and the
Causes for Specimen Rejection
- No label on tube
- Incorrect or incomplete patient identifiers
- Incorrect or incomplete collection information
- Wrong tube type
- Gross hemolysis
- Diluted specimen
NOTE- If a specimen
is rejected; a Blood Bank technologist will contact the nurse or
physician of the rejection and need for re-collection.
EXPIRATION OF THE COMPATIBILITY SPECIMEN
The expiration of a compatibility specimen only applies to Packed Red Blood Cells (PRBCS).
For adults: the specimen expires 3
days after the specimen was collected. For example, if the sample was
collected on Tuesday, it would expire Friday at 23:59.
For infants: the specimen for infants
< 4 months expires when the infant turns 4 months of age. For
infants ≥ 4 months of age, the expiration of the compatibility specimen
follows the same principle as adults.