Measures the amount of ferritin in your blood. … A ferritin test helps your doctor understand how much iron your body is storing. If a ferritin test reveals that your blood ferritin level is lower than normal, it indicates your body’s iron stores are low and you have iron deficiency.

To measure the amount of sugar in your blood.

Diagnose and classify certain cancers, such as leukemia and lymphoma, and to evaluate the risk of recurrence.

Used in the diagnosis of megaloblastic anemia.

Is used to help detect signs of prostate cancer. The test measures the level of unbound prostate-specific antigen in the blood, which can help doctors to diagnose issues like inflammation of the prostate or cancer.

Thyroid-stimulating hormone (TSH) test has come back with abnormal results. A T4 test will help your doctor determine what type of problem is affecting your thyroid.

In women,themost common reasons for an FSH test include:

• Assessing infertility problems
• Assessing irregular menstrual cycles
• Diagnosing disorders of the pituitary gland or diseases involving the ovaries

In men, an FSH test may be done to:

• Evaluate a low sperm count
• Assess hypogonadism or gonadal failure
• Assess testicular dysfunction