Parathyroid hormone levels at the upper end of the normal range (above 56 pg/mL) are linked to a 61% increase in all-cause mortality risk.

RAMAT-GAN, Israel — Your blood test results might be “normal,” but still put you at risk for serious heart problems. A major international study found that people with serum sodium levels at the upper ...

New research from the American Heart Association (AHA) suggests that parents might want to keep a closer eye on their kids’ blood pressure. About one in seven (14%) of children and teens in the U.S.

Hypokalemia and even low-normal plasma potassium levels increase the risk of ventricular arrhythmias among patients with cardiovascular disease. An assessment of a strategy of actively increasing ...