Test Overview
Test Methodology

Direct current detection method with coincidence correction. Hemoglobin is a non-cyanide based method read photometrically at 555 nm.

Test Usage

Blood count analysis of WBC, RBC, Hematocrit, Hemoglobin, Platelet, and MCV in the O.R setting is useful for determining blood product usage during and immediately following surgery.

Reference Range *

Reference ranges are available in the Sysmex XP-300 test procedure located on the POC website: https://www.pathology.med.umich.edu/point-of-care.

Reference ranges may change over time. Please refer to the original patient report when evaluating results.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

•Specimens must be free of clots and fibrin strands.
•Leukocyte aggregation may report a falsely decreased WBC.
•Falsely increased WBCs may be caused by PLT clumps, cryoprotein,cryoglobulin, fibrin, and giant platelets.
•Samples stored at room temperature more than 4 hours may exhibit an increase in MCV. RDW-SD, HCT, and MPV, and decrease in MCHC and total WBC.
•Lipemia, icterus, cold agglutinins, RBC fragments, lyse resistant RBCs, giant platelets, abnormal plasma proteins, clumped platelets, and fibrin strands may affect test results.

Test Details
Analytic Time

45 seconds

Soft Order Code
ORCBC
MiChart Code
OR Hematology, Point of Care
Synonyms
    Laboratory
    Point of Care
    Section
    Point of Care
    Specimen Requirements
    Collection Instructions

    Collect whole blood in EDTA tube.

    Special Handling

    Sample must be tested within 4 hours of collection.

    Normal Volume
    3 mL whole blood
    Minimum Volume
    1 mL whole blood
    Rejection Criteria
    Specimens older than 4 hours, and/or containing clots or fibrin strands
    Additional Information

    For more test specific information, please refer to the test procedure found on the Michigan Medicine POC website: https://www.pathology.med.umich.edu/point-of-care

    Billing
    CPT Code
    85027
    LOINC
    WBC (6690-2), RBC (771-6), HGB (718-7), HCT (4544-3), MCV ( 787-2), PLT (777-3)
    NY State Approved
    No