Test Overview
Test Methodology

Sysmex XN-9100 or manual spun method for capillary tubes

Test Usage

Evaluation of potential anemia or blood loss.

Reference Range *

Updated January 2021

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

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

STAT: 1 hour; Routine: 4 - 8 hours

Soft Order Code
HCT
MiChart Code
Hematocrit
Synonyms
  • H & H
  • Blood Survey, Hematocrit
  • HEMATOCRIT
  • HCT
Laboratory
Hematopathology
Section
Hematology
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection

Liquid EDTA K3 collection tubes are not acceptable and will be rejected due to possible dilutional effects.

Collection Instructions

Collect specimen in a lavender top EDTA K2 Vacutainer® tube or EDTA K2 Microtainer® tube. Three heparinized capillary tubes may also be filled 1/2 to 2/3 full, plugged, and placed together into a capped tube for transport. Send intact within 24 hours of collection if stored at room temperature or within 48 hours if stored refrigerated. Capillary tubes are acceptable only for manual spun Hematocrit (HCT).

Rejection Criteria
Specimens clotted, diluted with IV fluid, containing fibrin strands and clumped platelets, or in underfilled or improper tubes will be rejected. Overfilled capillary tubes will be rejected.
Red Top Tube
Normal Volume
3 ml EDTA K2 whole blood in Vacutainer® tube or 500 µl EDTA K2 whole blood in Microtainer® tube
Minimum Volume
1 ml EDTA K2 whole blood in Vacutainer® tube or 300 µl EDTA K2 whole blood in Microtainer® tube
Billing
CPT Code
85014 (automated) or 85013 (spun)
Fee Code
22322
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