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CBC with Automated Differential
Test CodeLAB1748
Alias/See Also
Hemogram with Diff
CPT Codes
85025
Includes
White blood cell count (WBC); red blood cell count (RBC); hemoglobin (Hgb); hematocrit (Hct); mean corpuscular volume (MCV); mean corpuscular hemoglobin (MCH); mean corpuscular hemoglobin concentration (MCHC); red cell distribution width (RDW); platelet count; mean platelet volume (MPV); percent and absolute values of total neutrophils, lymphoid cells, monocytes, eosinophils, and basophils
Instructions
Routine venipuncture. One 4ml Lavender top (EDTA) tube
Specimen Stability
Room temperature, stable 12 hours. Note: Hemogram is stable 48 hours refrigerated.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Insufficient quantity; clotted specimen; specimen >12 hours at room temperature; improperly labeled specimen
Methodology
"The CBC is based on the Coulter method of counting and sizing, a single beam photometer for hemoglobinopathy and flow cytometry."
Setup Schedule
Daily
Report Available
"
Within 24 hours
STAT available
"
Within 24 hours
STAT available
"
Clinical Significance
"Reactive changes in leukocytes, as seen in many infectious and inflammatory conditions, include alterations in the blood total leukocyte concentration (increase or decrease), in the relative proportions of different leukocytes, and in the leukocyte morphology.
Leukocytosis is the increase in the number of circulating leukocytes where as leukopenia is the decrease in the number of circulating leukocytes. This may involve any one or more types of leukocytes. Generally, only mature, nondividing leukocytes are present
in the peripheral blood.
Measurement of the hemoglobin level or packed cell volume (Hct) is the usual method determining whether a patient has anemia. The RBC indices are used to estimate the size and hemoglobin content of the RBC.
Thrombocytopenia is the reduction in the number of circulating platelets. Reduced number or absence of megakaryocytes in the bone marrow as seen in aplastic anemia and myelophthisis is suggestive of decreased platelet
production, whereas normal or increased numbers of megakaryocytes as seen in idiopathic thrombocytopenic purpura relates to increased peripheral destruction of platelets.
"
Leukocytosis is the increase in the number of circulating leukocytes where as leukopenia is the decrease in the number of circulating leukocytes. This may involve any one or more types of leukocytes. Generally, only mature, nondividing leukocytes are present
in the peripheral blood.
Measurement of the hemoglobin level or packed cell volume (Hct) is the usual method determining whether a patient has anemia. The RBC indices are used to estimate the size and hemoglobin content of the RBC.
Thrombocytopenia is the reduction in the number of circulating platelets. Reduced number or absence of megakaryocytes in the bone marrow as seen in aplastic anemia and myelophthisis is suggestive of decreased platelet
production, whereas normal or increased numbers of megakaryocytes as seen in idiopathic thrombocytopenic purpura relates to increased peripheral destruction of platelets.
"
Additional Information
NCD-ABN_BloodCounts
