Labeling
Label the container to indicate the volume of the Whole Blood collected from the donor, the collection date, the donation number or other coding means to uniquely identify the unit and to provide traceability to the donor, the storage temperature, and the expiration date (see below). Label it to indicate the type of anticoagulant or other preservative solution used to collect it. Label it also to identify donor status (i.e., volunteer or paid). Label it also with the following statements: See Circular of Information for indications, contraindications, cautions, and methods of infusion.; Properly identify recipient.; and Caution: Rx only. Label it to indicate the ABO group and Rh type, as indicated in
Table 1.
[NOTEEach Whole Blood product must have a determination made as to its ABO group and Rh type and specificity of unexpected red cell antibodies, if any.
]
Table 1
ABO Group |
Rh Type |
A |
Positive |
A |
Negative |
B |
Positive |
B |
Negative |
AB |
Positive |
AB |
Negative |
O |
Positive |
O |
Negative |
If an ABO blood group color scheme is used, use the following labeling color: Group A (yellow), Group B (pink), Group O (blue), and Group AB (white). Label Whole Blood with the type and results of tests for adventitious agents. If it has been issued prior to determination of the test results, label it also with the warning Donor Untested and to further specify Uncrossmatched Blood, when appropriate. If the unit of Whole Blood was filtered to reduce leukocytes, label it as Whole Blood, Leukocytes Reduced.
Identification
A: ABO blood group
Anti-A reagent, Anti-B reagent, Anti-AB reagent, Control preparations, and Procedure
Proceed as directed under
Red Blood Cells.
Test preparation
Centrifuge at 4
a suitable volume of Whole Blood at 5000
g for 5 minutes. Remove the plasma from the top, taking care not to disturb the pellet of red blood cells at the bottom. Add 0.9% saline to obtain a final volume that is about equal to the volume of Whole Blood. Resuspend the pellet, and centrifuge as above. Repeat the procedure once more. Dilute the red blood cells with 0.9% saline to a suspension to obtain a concentration of red blood cells that is about the same as those of the
Control preparations.
B: Rh type
TEST 1
Anti-D (Rho) reagent and Procedure
Proceed as directed under
Red Blood Cells.
Test preparation
Prepare as directed for
Identification test
A under
Red Blood Cells.
TEST 2
Anti-D reagent, Antihuman globulin reagent, Control preparation, and Procedure
Proceed as directed under
Red Blood Cells.
Test preparation
Prepare as directed for Test 1.
Visual inspection
Inspect visually during storage and immediately prior to use. If the color or physical appearance is abnormal or there is any indication or suspicion of microbial contamination, the unit is unsuitable for transfusion.
Hemoglobin content
Proceed as directed under
Red Blood Cells, except to use 20 µL of Whole Blood (without dilution) as the
Test solution. Calculate the hemoglobin concentration in Whole Blood from the calibration curve as directed under
Red Blood Cells, except do not multiply by 2.
Leukocyte count (for units labeled as Whole Blood, Leukocytes Reduced)
Proceed as directed under
Red Blood Cells, except to use 100 µL of Whole Blood.
Auxiliary Information
Staff Liaison :
Anita Y. Szajek, Senior Scientist
Expert Committee : (BBBBP05) Biologics and Biotechnology - Blood and Blood Products
USP29NF24 Page 299
Pharmacopeial Forum : Volume No. 30(1) Page 76
Phone Number : 1-301-816-8325