What Are Pulmonary Function Tests (PFTs)? Pulmonary function tests (PFTs) are lung tests. They show how well your lungs work. They’re noninvasive, which means that the doctor doesn’t cut you or put ...

Liver function tests are blood tests that can be used to monitor the health of your liver. Ask the doctor what you need to do to prepare. In some cases you may need to avoid food or certain ...

Kidney function tests are simple blood and urine tests that can identify problems with your kidneys. These tests can estimate your glomerular filtration rate (GFR), which indicates how quickly your ...

What Are Pulmonary Function Tests? To diagnose asthma, your doctor will review your symptoms, your medical and family history, and may do lung function tests (also called pulmonary function tests).