May 20, 2025 · An aspartate aminotransferase test, also called an AST test, is a blood test. It's commonly used to check the health of the liver. AST is a substance found mostly in the liver. …

Worried about QT interval prolongation? This online evidence based resource will help guide you how to measure the QT interval and calculate the QTc value with an easy to use calculator …

Apr 22, 2023 · Do you know when your last menstrual period began or how long it lasted? If not, it might be time to start paying attention. Keeping track of your menstrual cycles can help you …

Oct 10, 2024 · Stool comes in a range of colors. All shades of brown and even green are considered typical. Only rarely does stool color indicate a possibly serious intestinal condition. …

Oct 8, 2022 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better …

Dec 15, 2023 · Jeff Olsen: This is a normal heartbeat. [HEART BEATING] Atrial fibrillation interrupts this regular beat. Fred Kusumoto, M.D., Cardiology, Mayo Clinic: In atrial fibrillation, …

Mar 5, 2022 · An enlarged liver is one that's bigger than normal. The medical term is hepatomegaly (hep-uh-toe-MEG-uh-le). Rather than a disease, an enlarged liver is a sign of …

Feb 1, 2025 · Age group Recommended amount of sleep; Infants 4 months to 12 months: 12 to 16 hours per 24 hours, including naps: 1 to 2 years

Dec 17, 2024 · The Diagnostic and Statistical Manual of Mental Disorders (DSM) is a guide published by the American Psychiatric Association that explains the signs and symptoms of …

Jan 9, 2025 · Feldman M, et al., eds. Hemochromatosis. In: Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. 11th ed. …