Dec 19, 2023 · Overview A ferritin test measures the amount of ferritin in the blood. Ferritin is a blood protein that contains iron. This test can be used to find out how much iron the body …

Sep 20, 2025 · Having an enlarged liver is usually a sign of an underlying condition, such as liver disease, congestive heart failure or cancer. The medical term for enlarged liver is …

Oct 22, 2025 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a health condition.

May 13, 2025 · Problems with how blood clots can lead to excessive bleeding or blood clotting. Learn about the risks and treatments for a low blood platelet count.

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, …

Apr 22, 2023 · Learn about how to track your menstrual cycles and what any changes may mean.

If your doctor suspects you have osteoporosis, a bone density test can assess your bone strength. Learn about the risks and results of this procedure.

Dec 3, 2024 · Overview The prothrombin time test, sometimes referred to as the PT or pro time test, checks how quickly blood is clotting. Prothrombin is a protein produced by the liver. It is …

Feb 22, 2025 · Overview The A1C test is a common blood test for diagnosing diabetes. For people living with diabetes, the test checks how well they manage blood sugar levels. The …

Oct 3, 2025 · Atrial fibrillation (AFib) is a heart rhythm disorder. In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat. The signals go across …