An EKG, or electrocardiogram, measures the electrical activity of the heart through electrodes that are applied to the chest. These electrodes measure the amount of time it takes an impulse to travel through the atria, or upper chambers, then into...
Potassium plays a major role in normal cardiac function, skeletal and smooth muscle contraction and digestion. Hypokalemia is a medical condition that occurs because of a decrease in serum potassium levels. Use of certain diuretics, overuse of...
The heart normally beats in a rotating cycle of contraction and relaxation. This elegantly coordinated action is controlled by electrical impulses, which normally move across the heart with precision and reliability. When something goes awry with...
High blood pressure, also known as HBP or hypertension, is a serious medical condition. Nearly 75 million American have high blood pressure with African Americans, Native Americans and Hispanics being at highest risk, according to the American...
It is very common for people to get palpitations. The term covers a myriad of conditions which can range from irregular or fast heartbeats to cardiac emergencies. As a practicing cardiologist, I hear patients from age 15-95 describe symptoms...
