CBC (Complete Blood Count)
| Order Code: | CBC |
| Order Form: | Laboratory Requisition |
Specimen:
Blood
Minimum:
Full draw; 3.0 mL lavender top; (or fingerstick)
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
Routine turnaround time is approximately 2.5 hr.
Reference Range:
ADULT RANGES UNLESS NOTED
Male Female
WBC* 3.7-10.5 k/mm3 3.7-10.5 k/mm3
Hemoglobin* 13.2-17.7 g/dL 11.9-15.5 g/dL
Hematocrit* (pcv) 40-55% 35-47%
Platelets* 150-400 k/mm3 150-400 k/mm3
Red Blood Count
18 yr+ 4.5-6.2 millions/mm3 4.0-5.2 millions/mm3
11 yr - <18 yr 4.3-5.6 millions/mm3 3.9-5.1 millions/mm3
5 yr - <11 yr 4.3-5.2 millions/mm3 4.1-5.2 millions/mm3
1 yr - <5 yr 3.8-5.5 millions/mm3 3.8-5.2 millions/mm3
6 mo - <1 yr 3.9-5.5 millions/mm3 3.9-5.1 millions/mm3
3 mo - <6 mo** 3.1-5.1 millions/mm3 3.1-5.1 millions/mm3
2 mo - <3 mo** 2.7-4.5 millions/mm3 2.7-4.5 millions/mm3
1 mo - <2 mo** 3.1-5.3 millions/mm3 3.1-5.3 millions/mm3
0 - <1 mo** 3.9-5.9 millions/mm3 3.9-5.9 millions/mm3
RDWCV 9.0-14.5% 9.0-14.5%
RDWSD 35.1-43.9 fL 36.4-46.3 fL
MCV
18 yr+ 82-99 femtoliters 82-99 femtoliters
12 yr - <18 yr 79-95 femtoliters 79-95 femtoliters
6 yr - <12 yr 77-90 femtoliters 77-90 femtoliters
1 yr - <6 yr 75-90 femtoliters 75-90 femtoliters
6 mo - <1 yr 70-85 femtoliters 70-85 femtoliters
3 mo - <6 mo 74-108 femtoliters 74-108 femtoliters
1 mo - <3 mo 91-112 femtoliters 91-112 femtoliters
Birth - <1 mo 88-123 femtoliters 88-123 femtoliters
MPV 9.4-12.3 fL 9.4-12.3 fL
MCH
18 yr+ 25-35 picograms 25-35 picograms
12 yr - <18 yr 25-33 picograms 25-33 picograms
6 yr - <12 yr 25-33 picograms 25-33 picograms
1 yr - <6 yr 23-31 picograms 23-31 picograms
6 mo - <1 yr 23-31 picograms 23-31 picograms
3 mo - <6 mo 25-35 picograms 25-35 picograms
1 mo - <3 mo 27-36 picograms 27-36 picograms
Birth - <1 mo 31-37 picograms 31-37 picograms
MCHC
18 yr+ 32-36 g/dL RBC 32-36 g/dL RBC
1 yr - <18 yr 31-37 g/dL RBC 31-37 g/dL RBC
6 mo - <1 yr 32-36 g/dL RBC 32-36 g/dL RBC
Birth - <6 mo 28-36 g/dL RBC 28-36 g/dL RBC
*A more complete listing of normal ranges based on age and sex are
listed under each individual test code.
**Values refer to full term infants.
Comments:
The Hematology Laboratory will make and review a smear if any of the
following conditions apply: (1) patient's first CBC sample AND results
meet laboratory review criteria; (2) questionable (not necessarily
abnormal) CBC results; (3) CBC results are significantly different from
that of a previous specimen; (4) a physician specifically requests a
smear review by Technologist or a "Pathologist Review Blood Smear".
EDTA samples are saved in the laboratory until 4:00 p.m. the day after
receipt. Upon request, a smear could be made up until that time if
necessary. However, as the specimen ages, cell disintegration and
distortion may occur. Stained smears are held in the laboratories for
approximately two months.
Please print, complete and submit the Advance Beneficiary
Notice
(ABN) along with the Laboratory Requisition before shipping the
specimen.
Methodology:
Flow Cytometry
hgb = Colorimetric
Sample
Processing:
Submit whole blood in original container.
Sample
Storage:
Refrigerate.
Transport
Instructions:
Place specimen into zip-lock type bag, seal bag.
Place requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
Place requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
CPT Code:
85027
See also:
Blood Smear, Path Morphologic Exam, (Wright Stain)
Blood Smear, Technologist Review, (Wright Stain)
Blood Smear, Path Morphologic Exam, (Wright Stain)
Blood Smear, Technologist Review, (Wright Stain)