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Test Mnemonic HCT Hematocrit, Blood

Performing Laboratory

Hallmark Health

Physician Office Specimen Requirements

Container/Tube:  Lavender-top (EDTA) tube - Hemolyzed, clotted, specimen diluted with intravenous fluid, or tube that is not filled with minimum volume is not acceptable.

Specimen:  Full tube

Transport Temperature:  Refrigerate

Collection Instructions:  Immediately and gently invert 6 to 8 times to mix blood.

Note:  Lavender-top (EDTA) tube will be the last in the order of the draw.

Reference Values

0-2 days: 42.0-60.0 %

3-6 days: 45.0-67.0 %

7-13 days: 42.0-66.0 %

14-29 days: 39.0-63.0 %

30-59 days: 31.0-55.0 %

60-89 days: 28.0-42.0 %

3-5 months: 29.0-41.0 %

6 months-1 year: 33.0-39.0 %

1-5 years: 34.0-40.0 %

6-11 years: 35.0-45.0 %

M 12-17 years: 37.0-49.0 %

F 12-17 years:  36.0-46.0 %

M  ≥18 years: 41.0-53.0 %

F  ≥18 years: 36.0-46.0 %