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)