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  1. This test measures the amount of acetaminophen in your blood. Taking too much of this common pain reliever can cause liver damage. Learn more. ... Acetaminophen Level What ...
  2. Acid-fast bacillus (AFB) is a type of bacteria that causes tuberculosis (TB) and other infections. AFB tests look for AFB bacteria in sputum. Learn more.
  3. Alcohol use screening tests are questionnaires about your alcohol use. Screening can help find out if you need treatment for alcohol use disorder (AUD).
  4. Aldosterone (ALD) is a hormone that helps control blood pressure and levels of sodium and potassium. An ALD test measures aldosterone in blood or urine. ...
  5. An alkaline phosphatase (ALP) test measures the amount of ALP in your blood. It is commonly used to diagnose liver damage or bone disorders. Learn more.
  6. An allergy blood test checks for an allergy by measuring IgE. Your immune system makes this antibody. High levels may mean you have an allergy. Learn ...
  7. An allergy skin test checks for an allergic reaction by placing allergy-causing substances called allergens on or below your skin. Learn more. ... Allergy Skin Test ...
  8. An albumin blood test measures the level of albumin in your blood. Low albumin levels can indicate a disorder of the liver or kidneys. Learn more. ... Albumin Blood ...
  9. An AFP (alpha-fetoprotein) tumor marker test measures AFP in your blood. High levels may be a sign of cancer of the liver, ovaries, or testicles. Learn ...
  10. Alpha-1 antitrypsin (AAT) is a protein that protects the lungs and liver from damage. AAT testing is used to diagnose a condition called AAT deficiency.
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