Sign in →

Test Code CBCHEM Complete Blood Count (CBC) Hemogram

Methodology

Flow Cytometry
Includes white blood cell (WBC) count, red blood cell (RBC) count, hemoglobin, hematocrit, MCV, MCH, MCHC, RDW, platelet count and MPV.  
Useful for evaluating anemia, leukemia, reaction to inflammation and infections, state of hydration and dehydration, polycythemia, hemolytic disease of the newborn, and ABO incompatibilities.

Performing Laboratory

St. Clair Hospital Laboratory

Specimen Requirements

1 lavender-top (EDTA) tube (3 mL of EDTA whole blood).
Note:  Any stressful situation which leads to an increase in endogenous production may cause a rapid (15-30 minute) increase in WBC count. In the evaluation of infection in newborns and young children, it is recommended that several counts be obtained from a consistent vascular source in resting individuals.

Reference Values

WBC
0-6 days:  9.4-34.0 K/µL
7 days-5 months:  5.0-21.0 K/µL
6 months-3 years:  6.0-17.5 K/µL
4-13 years:  5.5-15.5 K/µL
≥14 years:  4.8-10.8 K/µL
Critical values (automatic call-back):  <2.5 K/µL or >75.0 K/µL
RBC
Males
0-6 days:  4.7-7.0 M/µL
7-29 days:  4.5-6.4 M/µL
30 days-5 months:  3.9-5.9 M/µL
6-11 months:  3.9-5.3 M/µL
1-11 years:  4.0-5.5 M/µL
12-13 years:  3.8-5.4 M/µL
≥14 years:  4.7-6.2 M/µL
Females
0-6 days:  4.7-7.0 M/µL
7-29 days:  4.5-6.4 M/µL
30 days-5 months:  3.9-5.9 M/µL
6-11 months:  3.9-5.3 M/µL
1-11 years:  4.0-5.5 M/µL
12-13 years:  3.8-5.4 M/µL
≥14 years:  4.2-5.4 M/µL
HEMOGLOBIN
Males
0-6 days:  15.0-22.5 g/dL
7-29 days:  15.4-20.5 g/dL
30-59 days:  10.7-17.1 g/dL
60 days-5 months:  9.0-14.0 g/dL
6-11 months:  10.0-15.0 g/dL
1-3 years:  10.5-14.6 g/dL
4-11 years:  11.0-14.0 g/dL
12-13 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
0-6 days:  15.0-22.5 g/dL
7-29 days:  15.4-20.5 g/dL
30-59 days:  10.7-17.1 g/dL
60 days-5 months:  9.0-14.0 g/dL
6-11 months:  10.0-15.0 g/dL
1-3 year:  10.5-14.6 g/dL
4-11 years:  11.0-14.0 g/dL
12-13 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
HEMATOCRIT
Males
0-6 days:  51.1-68.0%
7-29 days:  46.6-64.4%
30-59 days:  33.0-51.5%
60 days-5 months:  30.0-40.0%
6-11 months:  31.2-41.2%
1-3 year:  33.0-42.0%
4-11 years:  34.0-42.1%
12-13 years:  35.0-44.6%
≥14 years:  42.0-52.0%
Females
0-6 days:  51.1-68.0%
7-29 days:  46.6-64.4%
30-59 days:  33.0-51.5%
60 days-5 months:  30.0-40.0%
6-11 months:  31.2-41.2%
1-3 years:  33.0-42.0%
4-11 years:  34.0-42.1%
12-13 years:  35.0-44.6%
≥14 years:  37.0-47.0%
MCV
Males
0-6 days:  95.0-115.0 fL
7-29 days:  92.0-110.0 fL
30-59 days:  91.0-111.0 fL
60 days-5 months:  84.0-104.0 fL
6-11 months:  69.0-87.0 fL
1-3 years:  70.0-86.0 fL
4-11 years:  75.0-86.0 fL
12-13 years:  77.0-95.0 fL
≥14 years:  78.0-94.0 fL
Females
0-6 days:  95.0-115.0 fL
7-29 days:  92.0-110.0 fL
30-59 days:  91.0-111.0 fL
60 days-5 months:  84.0-104.0 fL
6-11 months:  69.0-87.0 fL
1-3 years:  70.0-86.0 fL
4-11 years:  75.0-86.0 fL
12-13 years:  77.0-95.0 fL
≥14 years:  78.0-99.0 fL
MCH
0-6 days:  31.0-37.0 pg
7-29 days:  30.0-40.0 pg
30-59 days:  30.0-40.0 pg
60 days-5 months:  28.0-34.0 pg
6-11 months:  25.0-33.0 pg
1-3 year:  25.0-33.0 pg
4-11 years:  24.0-30.0 pg
12-13 years:  25.0-33.0 pg
≥14 years:  25.0-35.0 pg
MCHC
31.0-36.5 g%
RDW
12.9-14.9%
PLATELETS
130-460 K/µL
Critical values (automatic call-back):  <50 K/µL or >1,000 K/µL
MPV
7.4-10.4 fL

Day(s) Test Set Up

Monday through Sunday