Children's Mercy Hospitals and Clinics
Name
CBC

Synonyms
Complete Blood Count

CMH Lab Section
Hematology

Specimen Requirements
1 mL in a 3 mL EDTA lavender top tube or
250 uL in a 500 uL microtainer

Availability
STAT, Urgent, Routine

Turn Around Time
STAT: 1 hour
Routine: 4 hours

Special Instructions
CBC includes: WBC, RBC, Hgb, Hct, MCV, MCH, MCHC, PLT, MPV, RDW

Methodology
Sysmex

Ranges
Tests in CBC that are not age dependent:
  • Mean Corpuscular Hemoglobin Concentration (MCHC) = 31-36.5 g/dl
  • Platelet Count (Plt) = 150-450 X 103/uL
  • Mean Platelet Volume (MPV) = 8.2 – 12.4 fL
  • Red Cell Distribution Width (RDW-CV) = 11.5 - 14.5 fL

Age White Blood Cells
(WBC)
103/uL
0 - 1 day 9.0 - 30.0
1 - 3 days 9.4 - 38.0
3 - 14 days 5.0 - 21.0
14 days - 1 mo 5.5 - 19.5
1 - 3 mos 5.5 - 17.5
3 mos - 2 yrs 6.0 - 17.5
2 - 6 yrs 5.5 - 15.5
6 - 12 yrs 4.5 - 14.5
>12 yrs 4.5 - 11.0

Age Red Blood Cells
(RBC)
106ul
Hemoglobin
(Hgb)
g/dl
Hematocrit
(Hct)
%
Mean Corpuscular Hemoglobin
(MCH)
pg
Mean Corpuscular Volume
(MCV)
in fL
0-3 days 4.0-6.6 14.5-22.5 45-67 31-37 95-121
3-14 days 3.6-6.6 12.5-22.5 39-67 28-40 86-124
14 days -1 mo 3.0-6.2 10.0-20.5 31-67 28-40 86-124
1-3 mos 2.7-5.4 9.0-18.0 28-55 26-40 77-123
3-6 mos 3.1-4.5 9.5-13.5 29-41 25-35 74-108
6 mos-2 yrs 3.7-5.3 10.5-13.5 33-39 23-30 70-86
2-6 yrs 3.9-5.3 11.5-13.5 34-40 24-30 75-87
6-10 yrs 4.0-5.2 11.5-15.5 35-46 25-33 77-95
10-16 yrs Fe 4.1-5.1 12.0-16.0 36-46 25-35 78-102
10-16 yrs M 4.5-5.3 13.0-16.0 37-49 25-35 78-98
>16 yrs Fe 4.0-5.2 12.0-16.0 36-46 26-34 82-100
>16 Years M 4.5-5.9 13.5-17.5 41-53 26-34 82-100


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