A platelet aggregation test checks how well your platelets clump together to form blood clots. Platelets are a type of blood cell. They help form blood clots by sticking together. A clot is what stops ...

A stool test is a diagnostic procedure that involves analyzing fecal matter, or poop, to check for signs of infection, inflammation, or disease. The specific analysis depends on a person’s symptoms ...

Also known as a renal biopsy, a kidney biopsy may be performed if you have abnormal urine or blood tests. There are different types of biopsies using different instrumentation, but all involve an ...