What foods should I avoid before a cholesterol test? Cardiologist reveals what to eat the night before, whether you need to fast and which foods impact results.

A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

Tests like electrocardiograms or a blood test for cholesterol offer good measures of heart health. But the American College of Cardiology’s now recommending another test for a closer look at your risk ...

The anion gap blood test measures the acid-base and electrolyte balance in the blood. Results can show whether there is an imbalance in a person’s pH levels, which may be making the blood too acidic ...

Diabetes is a chronic condition that happens when your blood sugar levels are too high. It develops when your pancreas either does not make any insulin or is not able to use it properly. This leads to ...

Knowing your blood type is critical during emergency health situations. Knowing your blood type is crucial medical information, but unless you've given blood before you might not be sure what yours is ...

Too much vitamin D, or vitamin D toxicity, happens due to a buildup of calcium in the blood (hypercalcemia), which can be ...