A CBD blood test, or Complete Blood Count with Differential, is a type of blood test that assesses the different types of cells in your blood.
Understanding the Complete Blood Count with Differential
The Complete Blood Count (CBC) is a very common blood test that provides a general overview of your blood health. It measures:
- Red blood cells (RBCs): These carry oxygen throughout your body.
- White blood cells (WBCs): These fight infections.
- Platelets: These help your blood clot.
The Differential part of the test then provides more detail about the different types of white blood cells present, such as:
- Neutrophils
- Lymphocytes
- Monocytes
- Eosinophils
- Basophils
Why is a CBD Test Performed?
A CBD blood test is used to:
- Diagnose infections
- Monitor blood conditions such as anemia or leukemia
- Detect inflammation
- Evaluate the effects of medications
- Assess overall health
The Review Process
According to our reference, a key part of a CBD test is a review of a peripheral blood smear by a Technologist, if indicated. This means that if there is something abnormal detected by the machine, the Technologist will visually analyze the cells under a microscope for a more comprehensive evaluation.
What to Expect During the Test
The test involves a simple blood draw, usually from a vein in your arm. A healthcare professional will use a needle to collect a small sample of blood. The process is usually quick, and there is minimal discomfort.
Table summarizing the CBD test
| Component | Description |
|---|---|
| Complete Blood Count (CBC) | Measures red blood cells, white blood cells, and platelets. |
| Differential | Provides details about the different types of white blood cells (neutrophils, lymphocytes, etc). |
| Peripheral Blood Smear Review | A Technologist reviews the cells under a microscope if the initial machine analysis indicates abnormalities. |
| Purpose | Diagnosing infections, monitoring blood conditions, detecting inflammation, and assessing overall health. |
