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Digestive System and Gas

Gas is a normal result of the foods you eat. Since diet is the main cause of gas, your doctor will want to know about the foods you eat and your sy...

Understanding Low Blood Pressure -- The Basics

Hypotension is the medical term for low blood pressure (less than 90/60). Sudden drops in blood pressure most commonly occur in someone who's risin...

Picture of Blood

Blood is a constantly circulating fluid providing the body with nutrition, oxygen, and waste removal. Blood is mostly liquid, with numerous cells a...

What is Wolff-Parkinson-White Syndrome?

Does your heart sometimes beat very fast? This system keeps the heart beating regularly. This is when the ventricles (the heart’s lower chambers) b...

What is Mitral Valve Regurgitation?

When your heart pumps blood, it’s supposed to follow along a specific path in one direction. As your heart beats, it draws blood from the body into...

What is Endocarditis?

Endocarditis can cause a new or additional heart murmur, or unusual sound in your heartbeat, or changes to an existing one. But if you have heart p...

What are Central Venous Catheters?

Your doctor may use it to give you medicine for pain, infection, and other conditions, such as cancer or heart issues. A PICC (peripherally inserte...

Ventricular Septal Defect

Ventricular septal defect is a hole in the wall between the right and left ventricles of the heart. No one knows what causes ventricular septal def...

Tetralogy of Fallot

Even if the bluish color and other symptoms have resolved by the time the child gets medical attention, the health care provider will immediately s...

Takayasu's Arteritis

Arteritis is a general term that refers to the inflammation of arteries -- blood vessels that carry blood away from the heart and to the rest of th...

What is Peripheral Artery Disease (PAD)?

Peripheral artery disease, sometimes called peripheral arterial disease or PAD, is a condition in which your arteries are narrowed and can’t carry ...

Do I Need Nitroglycerin for Sudden Chest Pain?

Do you know whether to take your nitroglycerin tablets before, during, or after chest pain? As with any medicine, nitroglycerin might be harmful if...