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 ...

A urine sodium test checks the amount of sodium in a sample of your pee to see whether it’s at a normal level. Having too much or too little sodium can mean there’s an issue with your kidneys or ...

A KOH prep test is a simple, non-invasive procedure for diagnosing fungal infections of the skin or nails. Cells are ...

Researchers have discovered that analyzing specific patterns of cell-free DNA (cfDNA) fragmentation in a simple urine sample ...

Chorionic villus sampling (CVS) is a prenatal test used to detect birth defects, genetic diseases, and other problems during pregnancy. During the test, a small sample of cells (called chorionic villi ...

Cerebrospinal fluid (CSF) is a clear bodily fluid that cushions and protects your brain and spinal cord. A CSF protein test involves taking a fluid sample from your spinal column using a needle. This ...

Recent research suggests that blood tests may show markers of oral cancer. But a blood test isn’t enough to confirm an oral cancer diagnosis. A biopsy is the only way to confirm it. Blood tests for ...

There are a multitude of available test procedures and methods for water and wastewater treatment operators. They range from colorimetric, titrimetric, electrometric (meter & probe), turbimetric, ...