CBC: Test Your Understanding
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What is a complete blood count (CBC)?
a
A test that measures iron only
.
b
A test that looks at red blood cells, white blood cells, and platelets
A CBC gives information about the main types of cells in the blood and helps doctors understand many common conditions.
c
A test that checks vitamin levels
d
A test that measures blood sugar
Which CBC values do doctors usually focus on first?
a
Every number listed on the report
b
Red cell indices only
c
White blood cells, hemoglobin/hematocrit, and platelets
These core values give the most important information about infection, anemia, and bleeding or clotting risk.
d
Mean platelet volume (MPV)
What does hemoglobin measure?
a
How well blood clots
b
How much oxygen red blood cells can carry
Hemoglobin is the protein in red blood cells that carries oxygen to the body’s tissues.
c
How many white blood cells are present
d
How much iron is stored in the body
What are red cell indices (such as MCV) mainly used for?
a
To diagnose infections
b
To decide whether transfusion is needed
c
To measure platelet function
d
To explain the type or pattern of anemia
Red cell indices help describe anemia but do not diagnose the cause by themselves.
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