CBC (Complete Blood Count)
| Label Mnemonic: | CBC |
| Epic code: | LAB294 |
| Order form: | Laboratory Requisition |
| Supply order: | Supply Order Form |
| Billing: | Billing Policies |
| CPT code: | 85027 |
Specimen(s):
Blood
Collection Medium:
|
| Lavender top tube 3 mL (EDTA) |
Minimum:
Full draw; 3.0 mL lavender top; (or fingerstick-purple top microtainer®)
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
Routine turnaround time is approximately 1 hour.
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) 40-52% 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 4.3-5.5 millions/mm3 4.1-5.2 millions/mm3
1 yr - <5 yr 3.8-5.2 millions/mm3 3.8-5.2 millions/mm3
6 mo - <1 yr 3.9-5.5 millions/mm3 3.9-5.5 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
11 - 18 yr+ 25-35 picograms 25-35 picograms
5 yr - <11 yr 25-33 picograms 25-33 picograms
6 mo - <5 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 32-36 g/dL RBC 32-36 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.
Methodology:
Flow Cytometry hgb = Colorimetric
Instructions:
Sample must reach lab for analysis < 24 hrs.
Sample Processing:
Submit whole blood in original container.
DO NOT CENTRIFUGE.
Sample Storage:
Refrigerate.
Transport Instructions:
Place labeled specimen into zip-lock type biohazard 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.
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)
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.