Three specimens total: One 4 mL lavender top tube (EDTA), one 6 mL pink top tube (EDTA for Transfusion Service), and one 7.5 mL serum separator tube (SST) or one 5 mL red top tube.
Handling:
Allow 7.5 mL SST or 5 mL red top tube to clot, centrifuge and immediately separate serum from cells. Do not centrifuge or separate 6 mL pink top tube. Refrigerate and transport specimens within 24 hours of collection. Complete and accurate labeling with patient’s first and last name and date of birth is required. Information on test requisition and on label must be identical. Patient’s Social Security number is requested. Enter it on the test requisition only, not on the specimen label. Tube should be labeled at the time the patient is drawn in order to comply with national patient safety goals. If a subsequent label is put on the tube, do not cover the original label. Specimen for Transfusion Service testing should not be used for other laboratory testing, nor should specimens for other laboratory testing be used for Transfusion Service.
Standard Volume:
4 mL EDTA whole blood in lavender top tube, 6 mL whole blood in pink top tube, and 2 mL serum.
Minimum Volume:
1 mL EDTA whole blood in lavender top tube, 3 mL whole blood in pink top tube, and 0.75 mL serum.
Transport:
Refrigerated.
Comments:
WBC and platelet count may decline after 24 hours; 48 hours maximum delay.
Rejection Criteria:
Gross hemolysis; clotting of lavender top tube;incorrect or incomplete labeling; discrepancy between requisition and specimen label.
MEDICARE MAY REQUIRE A SIGNED ADVANCE BENEFICIARY NOTICE (ABN) FOR THIS TEST
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