Lab Dept:

Hematology

Test Name:

CBC, PLATELET, without Differential

General Information

Lab Order Codes:

ABC

Synonyms:

Hemogram; Blood Cell Count; Automated Cell Count; CBC and Platelet Count

CPT Codes:

85027 – Hemogram and platelet, automated

Test Includes:

WBC, RBC, Hct, Hgb, MCV, MCH, MCHC, RDW, Platelet Count, MPV

Logistics

Test Indications:

Useful as a screen for the evaluation of anemia, leukemia, reaction to inflammation and infection, state of hydration, and dehydration, polycythemia, hemolytic disease of the newborn, and ABO incompatibilities.

Lab Testing Sections:

Hematology

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

4 hours

Special Instructions:

Do Not collect specimen while lipids are being infused.

Optimally, specimen should arrive in the lab within 4 hours of collection. Specimens can be stored at room temperature up to 24 hours.

Specimen

Specimen Type:

Whole blood

Container:

Lavender (EDTA) top tube , Lavender (EDTA) Microtainerâ

Draw Volume:

2 mL blood in a 2 mL Lavender top tube OR
0.5 mL in a EDTA Microtainer®

Processed Volume:

Minimum: 0.5 mL blood

Stability:

Optimal when run within in 4 hours of collection.
Stable for 24 hours at room temperature.
Stable for 36 hours at 2 – 8 degrees C.

Collection:

Routine venipuncture or blood collection

Special Processing:

Lab Staff: Do Not centrifuge

Patient Preparation:

None

Sample Rejection:

Improper tube; clotted sample; underfilled tube; mislableled or unlabeled specimens

Interpretive

Reference Range:

Age and Sex Dependent; Refer to CBC Reference Value Table

Critical Values:

Test Name:

Value

Hem/Onc Clinics

Hematocrit:

<21% or >65%

None

Hemoglobin:

<7 gm/dL

<5.0 gm/dL

Platelets:

<50,000 or >1,000,000

<5,000

WBC:

Newborn: <5,000 or >35,000

None

Others: <2,000 or >25,000

None

Limitations:

Lipemia, elevated WBC and cold agglutinins will prolong the turn around time of an occasional specimen.

Methodology:

Automated Cell Counter

References:

Nathan DG, et al (1987) Hematology of Infancy and Childhood, WB Saunders pp1680, 1688

Normal Reference Range Study (1994) Children's Hospitals and Clinics, Minneapolis and St Paul, MN, Hematology Laboratory