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Blood tests are important tools for checking your health. They help doctors see what's going on in your body. Here's an easy-to-follow guide to common blood tests, what they check, why they're important, and their normal ranges:
1. Complete blood count (CBC)
What is checked:
Red blood cells (RBC): Transport oxygen.
Normal range:
Men: 4.7 to 6.1 million cells/µL
Women: 4.2 to 5.4 million cells/µL
White blood cells (WBC): Fight infections.
Normal range: 4,500 to 11,000 cells/µL
Hemoglobin (Hb): The protein that carries oxygen in red blood cells.
Normal range:
Men: 13.8 to 17.2 g/dL
Women: 12.1 to 15.1 g/dL
Hematocrit (Hct): The percentage of red blood cells in your blood.
Normal range:
Men: 40.7% to 50.3%
Women: 36.1% to 44.3%
Platelets: Help your blood clot to stop bleeding.
Normal range: 150,000 to 450,000 platelets/µL
Why it is important:
Shows whether you have anemia (low red blood cell count), infections, or other health problems.
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