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HelpTest Code HCRT Hematocrit (HCT) LAB289
Test Method
Sysmex XN Systems:
- HCT: Measured as ratio of the total RBC volume to whole
blood
using cumulative pulse height detection.
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.
Reference Values
Hematocrit:
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%
Performance
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.
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.
LOINC Code Information
58410-2 Complete Blood Count (Hemogram) Panel-Blood By
Automated
Count
CPT Code Information
85014 Blood Counts: complete (CBC),
with
automated differential WBC count, hematocrit