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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

HEMATOCRIT

Males

0-3 days:  42.0-60.0 %

3-7 days:  45.0-67.0 %

7-14 days: 42.0-66.0 %

14 days-1 month: 39.0-63.0 %

1-2 months:  31.0-55.0 %

2-3 months: 28.0-42.0 %

3-6 months: 29.0-41.0 %

6 months-2 years:  33.0-39.0 %

2-6 years:  34.0-40.0 %

6-12 years:  35.0-45.0 %

12-18 years: 37.0-49.0 %

≥18 years:  41.0-53.0 %

Females
0-3 days:  42.0-60.0 %

3-7 days:  45.0-67.0 %

7-14 days: 42.0-66.0 %

14 days-1 month: 39.0-63.0 %

1-2 months:  31.0-55.0 %

2-3 months: 28.0-42.0 %

3-6 months: 29.0-41.0 %

6 months-2 years:  33.0-39.0 %

2-6 years:  34.0-40.0 %

6-12 years:  35.0-45.0 %

12-18 years: 36.0-46.0 %

≥18 years:  36.0-46.0 %