Pulse oximetry is a quick, painless test that’s used to measure the oxygen level (oxygen saturation) in your blood cells.

If you have too much serotonin in your body, it can lead to dangerous side effects. This is known as serotonin syndrome.

A rash is a common skin condition that occurs when the skin is irritated. A rash can be red, itchy, swollen, dry, or painful.

Mechanical thrombectomy is a procedure used to remove a blood clot in an artery. It’s most often used as an emergency treatment for some ischemic strokes.

Left atrial appendage closure (LAAC) seals off the left atrial appendage of the heart to reduce the risk for stroke in people who have atrial fibrillation. Learn why and how it's done, what to expect after the procedure, and possible risks.

If you have emphysema or chronic bronchitis, two main conditions of COPD, you may also have heart disease.

Marijuana is now legal in several states in the U.S. But just because it’s legal does not mean it’s safe for everyone. Marijuana use during pregnancy can harm your baby.

Breastfeeding is one of the best things you can do for your baby. But using tobacco products or e-cigarettes while you breastfeed is harmful to your baby.

The IABP procedure is done through a large I.V. placed in your arm.

It’s best for your baby if you don’t drink any alcohol at all when breastfeeding. But experts generally advise that it’s possible to nurse safely and still have an occasional drink, as long as you follow some guidelines.