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HelpTest Code HGBHCT Hemoglobin and Hematocrit, Blood
Methodology
Automated Hematology AnalyzerUseful for evaluation of anemia, blood loss, hemolytic anemia, polycythemia, and other conditions.
Performing Laboratory
St. Clair Hospital LaboratorySpecimen Requirements
1 lavender-top (EDTA) tube (3 mL of EDTA whole blood).Reference Values
HEMATOCRITMales
0 days: 51.1-68.0%
7 days: 46.6-64.4%
30 days: 33.0-51.5%
60 days: 30.0-40.0%
6 months: 31.2-41.2%
1 year: 33.0-42.0%
4 years: 34.0-42.1%
12 years: 35.0-44.6%
≥14 years: 42.0-52.0%
Females
0 days: 51.1-68.0%
7 days: 46.6-64.4%
30 days: 33.0-51.5%
60 days: 30.0-40.0%
6 months: 31.2-41.2%
1 year: 33.0-42.0%
4 years: 34.0-42.1%
12 years: 35.0-44.6%
≥14 years: 37.0-47.0%
HEMOGLOBIN
Males
0 days: 15.0-22.5 g/dL
7 days: 15.4-20.5 g/dL
30 days: 10.7-17.1 g/dL
60 days: 9.0-14.0 g/dL
6 months: 10.0-15.0 g/dL
1 year: 10.5-14.6 g/dL
4 years: 11.0-14.0 g/dL
12 years: 11.5-16.5 g/dL
≥14 years: 14.0-17.0 g/dL
Critical values (automatic call-back): <7.5 g/dL or >20.0 g/dL
Females
0 days: 15.0-22.5 g/dL
7 days: 15.4-20.5 g/dL
30 days: 10.7-17.1 g/dL
60 days: 9.0-14.0 g/dL
6 months: 10.0-15.0 g/dL
1 year: 10.5-14.6 g/dL
4 years: 11.0-14.0 g/dL
12 years: 11.5-16.5 g/dL
≥14 years: 12.0-16.0 g/dL
Critical values (automatic call-back): <7.5 g/dL or >20.0 g/dL