Complete blood count (CBC), which includes: - White blood cell count (WBC)
- Red blood cell count (RBC)
- Platelet count
- Hematocrit red blood cell volume (HCT)
- Hemoglobin concentration (HB). This is the oxygen-carrying protein in red blood cells.
- Differential white blood count
- Red blood cell indices (measurements)
| To help diagnose anemia, certain cancers of the blood, and inflammatory diseases. Also to watch for blood loss and infection. |
Platelet count (often done as part of the CBC) | To diagnose or to watch certain types of bleeding and clotting disorders |
Prothrombin time (PT) Partial thromboplastin time (PTT) International normalized ratio (INR) | To evaluate bleeding and clotting disorders. Also to watch anticoagulation (anticlotting) therapies. |