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Lactate Test

  • Test
Explains how the lactate test is used, when a lactate test is ordered, and what the results of a lactate test might mean. The lactate test is primarily ordered to help determine if someone has lactic acidosis, a level of lactate that is high enough to disrupt a person's acid-base (ph) balance.
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PD-L1

  • Test
Some tumor cells have large amounts of PD-L1. A lab test measures how much PD-L1 is present on tumor cells to help guide treatment of certain cancers.
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Antistreptolysin O (ASO)

  • Test
The antistreptolysin O (ASO) test is used to determine if a strep infection with group A Streptococcus is the cause of glomerulonephritis kidney disease or rheumatic fever.
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Strep Throat Test

  • Test
A rapid strep test and/or throat culture can help diagnose strep throat, a sore throat caused by a group A strep infection.
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Stool DNA Test

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The stool DNA test checks for genetic changes in the cells in your stool. Abnormal cells or blood in the stool may be a sign of precancerous growths or cancer.
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Pleural Fluid Testing

  • Test
Pleural fluid testing involves multiple measurements and can help diagnose the cause of fluid buildup around the lungs, which is called a pleural effusion.
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Kidney Stone Testing

  • Page
Kidney stones are collections of crystals in the urinary tract that cause intense pain. Learn about the types of kidney stone tests and when they may be used.
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Zika Virus Testing

  • Test
The Zika virus is most often spread by infected mosquitoes. Learn about testing for a Zika virus infection, including who should get tested.
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Stool Elastase

  • Test
Elastase is an enzyme produced by tissue in the pancreas. The stool elastase test is used to evaluate children and adults for pancreatic insufficiency.
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Respiratory Syncytial Virus (RSV) Testing

  • Test
Respiratory syncytial virus (RSV) is a very contagious viral respiratory infection. Testing diagnoses RSV, mainly in infants, the elderly and in people with severe symptoms, weakened immune systems, and lung diseases.
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