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What is a Cortisol Test?

If your level is too high, your doctor might follow up with other tests (urine or saliva) to make sure the results aren’t due to stress or a medica...

Clinical Trials: a Guide

It’s when a team of scientists and doctors tries a new medical treatment, drug, device, or method on a group of people to test how well it works. Y...

Yellow Eyes

Cancerous tumors that block your bile duct and cirrhosis of the liver can be dangerous or deadly. Often, the cause is a virus that infects liver ce...

Why is Your Urine Brown?

This can lead to a buildup of an orange-yellow substance called bilirubin in your blood and urine, and can turn urine brown. If you think you could...

Nuclear Bone Scan

A nuclear bone scan is a medical test that uses a small amount of radioactive material to check the condition of your bones. Your doctor might orde...

Benign Tumors

Surgery is a common type of treatment for benign tumors. The goal is to remove the tumor without damaging surrounding tissues. Adenomas are benign ...

Baking Soda Dos and Donts

But acid doesn’t cause all kinds of indigestion, so if your symptoms don’t improve after 2 weeks, call your doctor. When the baking soda lowers sto...

What is An Aspartate Aminotransferase (AST) Test?

The aspartate aminotransferase (AST) test is a blood test that checks for liver damage. When your liver is damaged, it puts more AST into your bloo...

What is An Ammonia Test?

It’s a simple blood test that lets your doctor measure how much ammonia is in your blood. Your doctor will probably order an ammonia test if you ha...

Adhesions, General and After Surgery

However, a diagnosis of adhesions usually is made only during surgery. A physician, for example, can diagnose small bowel obstruction but cannot de...

What is a Bilirubin Test?

A bilirubin test measures the amount of bilirubin in your blood. This is the bilirubin created from red blood cell breakdown. This is the bilirubin...

What is Bone Marrow Aspiration and Biopsy?

A bone marrow aspiration and a bone marrow biopsy are different procedures that often are done together. The two procedures together are also refer...