CBC (H/H, RBC, Indices, WBC, Plt)
Use
A complete blood count (CBC) is used as a general screening test that provides essential information about the cellular components of blood — specifically red blood cells (RBCs), white blood cells (WBCs), and platelets (Plt). It helps identify conditions such as anemia, infection, inflammation, and hematologic disorders like leukemia.
Special Instructions
Not provided.
Limitations
Not provided.
Methodology
Automated Analyzer (Hematology)
Biomarkers
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
0.5 mL (Microtainer); 1 mL (EDTA tube)
Minimum Volume
Not provided
Container
EDTA (lavender‑top) tube; EDTA (tan‑top) tube (if lead testing)
Collection Instructions
Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender‑top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets.
Causes for Rejection
Hemolysis; Clotted; Received frozen
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 48 hours (may cause platelet clumping) |
| Frozen | Unacceptable |