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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Hematocrit

Test Code(s): HCT

CPT Code(s): 85014

Test Description: Included In: CBC with Differential, CBC without Differential

Methodology: Flow Cytometry and Impedance

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 4 hours.

Specimen Requirements

Specimen: Blood

Collection Container: Preferred: K3EDTA-Lavender top
Also Acceptable: K2EDTA-Lavender top, Pink top tube

Collection Volume: Preferred: 4 mL
Pediatrics: 1 mL

Sample Analyzed: Whole Blood

Volume Required: Preferred: 1 mL
Pediatrics: 0.25 mL in microtainer

Specimen Transport: Transport specimen to laboratory at ambient temperature.

Unacceptable Criteria: Clotted specimens are not acceptable.Tubes with <25% of fill volume.

Stability: Ambient: 8 hours
Refrigerated: Not acceptable
Frozen: Not acceptable


Reference Interval:
 Age  %
 0 days-29 days  44-70
 30 days-5 months  28-55
 6 months-23 months  32-42
 2-9 years  33-43
 10-17 years, male  36-47
 10-17 years, female  35-45
 18 years and up, male  40-52
 18 years and up, female  34-46


Critical Calls: View

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