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Test Code HH Hemoglobin and Hematocrit, Blood

Performing Laboratory

MaineGeneral Medical Center

Specimen Requirements

Specimen must arrive within 24 hours of draw.

Specimens drawn in a MAP microtube must be run within 4 hours of collection.

Draw blood in a lavender-top (EDTA) tube(s). Tube must be at least 1/2 the expected fill volume. For pediatric specimen, draw a full, pink-top (EDTA) MAP microtube. (Clotted specimen is not acceptable.) Send refrigerated.

Note:  Label specimen with patient’s name (first and last), date of birth, date and time of draw, and phlebotomist’s initials.

Day(s) Test Performed

Monday through Sunday

Test Classification and CPT Coding

85014 - hematocrit

85018 - hemoglobin

Reference Values

HEMOGLOBIN

Males

0-8 days:  14.5-22.5 g/dL

9 days-24 months:  10.5-13.5 g/dL

2-9 years:  11.5-15.5 g/dL

10-17 years:  13.0-16.0 g/dL

≥18 years:  14.0-18.0 g/dL

Females

0-8 days:  14.5-22.5 g/dL

9 days-24 months:  10.5-13.5 g/dL

2-9 years:  11.5-15.5 g/dL

10-17 years:  12.0-16.0 g/dL

≥18 years:  12.0-16.0 g/dL

Critical values (automatic call-back):  <7.0 g/dL or >20 g/dL (adults)

HEMATOCRIT

Males

0-8 days:  45-67%

9 days-24 months:  33-39%

2-9 years:  34-45%

10-17 years:  37-49%

≥18 years:  42-52%

Females

0-8 days:  45-67%

9 days-24 months:  33-39%

2-9 years:  34-45%

10-17 years:  36-46%

≥18 years:  37-47%

Critical values (automatic call-back):  <30% or >70% (newborns:  0-14 days)