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Test Code 05H Hematocrit (HCT)

Additional Codes


PowerChart: Hematocrit

MA Cerner: Hematocrit

Specimen Requirement

EDTA whole blood is required.

Additional Specimen Collection Information

Whole blood collected in EDTA purple-top tube. The tube must be at least one quarter full to be acceptable for testing.

Capillary specimen collected in EDTA microtube. The  tube must contain at least 375 mcl (bottom line) to be acceptable for testing.

Useful For

Screening tool to confirm a hematologic disorder.

Establish or rule out a diagnosis.

Detect an unsuspected hematologic disorder.

Monitor effects of radiation or chemotherapy.

These counts are used as clinical guides in the diagnosis and/or monitoring of many diseases.


Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after the specimen arrives at the testing site.

Expedite orders: Typically completed within 1 hour after the specimen arrives at the testing site.

STAT orders: Typically completed within 30 minutes after the specimen arrives at the testing site.

CPT Code Information

85014 Blood Counts: complete (CBC), with automated differential WBC count, hematocrit

LOINC Code Information

58410-2 Complete Blood Count (Hemogram) Panel-Blood By Automated Count

Test Method

Sysmex XN and XS Systems:

  • HCT: Measured as ratio of the total RBC volume to whole blood using cumulative pulse height detection.

Reference Values


0-15 days Male and Female: 41-65%

15 days-1 month Male and Female: 33-55%

1-2 months Male and Female: 28-42%

2-4 months Male and Female: 32-44%

4-6 months Male and Female: 31-41%

6-9 months Male and Female: 32-40%

9 months-1 year Male and Female: 33-41%

1-3 years Male and Female: 32-40%

3-6 years Male and Female: 32-42%

6-9 years Male and Female: 33-41%

9-12 years Male and Female: 34-43%

12-15 years:

Male: 35-45%

Female: 34-44%

15-18 years:

Male: 37-48%

Female: 34-44%

18-45 years:

Male: 39-49%

Female: 35-45%

45-65 years:

Male: 39-49%

Female: 35-47%

≥ 65 years:

Male: 37-51%

Female: 35-47%

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