| Marker | What it adds |
|---|---|
| Hemoglobin | The oxygen-carrying protein; helps assess whether anemia is present. |
| Mean Corpuscular Volume (MCV) | Average red-cell size; adds a clue about the pattern of anemia. |
| WBC Count | The total white-cell count; a differential separates the cell types. |
| Neutrophils | One type of white cell, read with the total count and other types. |
| Platelet Count | Counts the cell fragments involved in stopping bleeding. |
Start with the three groups
Read the red-cell results together, then the white-cell count and differential, then platelets. A flagged number is a clue to interpret with symptoms and earlier results. [1] [2]
The oxygen-carrying protein; helps assess whether anemia is present.
Average red-cell size; adds a clue about the pattern of anemia.
The total white-cell count; a differential separates the cell types.
One type of white cell, read with the total count and other types.
Counts the cell fragments involved in stopping bleeding.
An example of reading results together
Low hemoglobin with a low MCV describes anemia with smaller red cells. It does not identify iron deficiency on its own; iron studies or other investigations may be needed to find the cause. [1] [3]
Before the sample
A CBC alone usually needs no special preparation. Other tests taken at the same visit may have different instructions. A differential is not included in every CBC order. [1] [2]
Which group changed, and how does it compare with my previous CBC?
Sources & references
Practical-section sources accessed: .
For general health education. Interpreting your result and deciding on tests or treatment requires your health context and a qualified clinician.