Experts think certain non-routine tests are worth asking your doctor about, since the results could point to health-saving ...

Liver function tests can seem overwhelming, but each value offers insight into how well your liver is working. Markers such as AST, ALT, ALP, and bilirubin help identify potential injury, bile flow ...

It has recently been proposed that the true upper normal limit of serum alanine aminotransferase (ALT) is much lower than that listed by the manufacturers of commercially available assays. The normal ...

A D-dimer test measures how much D-dimer protein is in the blood. This protein is present when blood clots break down. A typical range is 0 to 0.50 micrograms per milliliter (μg/mL) of blood. Higher ...

Lab test results can feel overwhelming, but understanding reference ranges helps put them in context. These ranges are based on healthy populations and can vary with age, gender, and testing methods.

Although estrogen is usually associated with the female body, men also produce this hormone. Excessively high or low estrogen could signify an underlying medical condition. While often labeled as ...

Systolic pressure measures arterial pressure when the heart contracts, with normal readings less than 120 mmHg. Diastolic pressure measures arterial pressure when the heart relaxes, with normal ...

Kaitlin Sullivan is a health and science journalist based in Colorado. She's been part of multiple award-winning investigations into health topics including the international medical device industry ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Mental health involves a person's mood, thinking, and behavior — and conditions like depression, anxiety, bipolar disorder, post-traumatic stress disorder, and schizophrenia can each affect a person's ...