
Heart rate: What's normal? - Mayo Clinic
Oct 8, 2022 · 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 problem.
Ejection fraction: An important heart test - Mayo Clinic
Jan 29, 2025 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is …
Complete blood count (CBC) - Mayo Clinic
Jan 14, 2023 · Overview A complete blood count (CBC) is a blood test. It's used to look at overall health and find a wide range of conditions, including anemia, infection and leukemia. A …
Blood pressure chart: What your reading means - Mayo Clinic
Feb 28, 2024 · Ideal blood pressure is categorized as normal. Increased blood pressure may be categorized as elevated, stage 1 or stage 2 depending on the specific numbers. A diagnosis of …
Creatinine test - Mayo Clinic
Jun 12, 2025 · Overview A creatinine test is a measure of how well the kidneys are doing their job of filtering waste from the blood. Creatinine is a chemical compound left over from energy …
High blood pressure (hypertension) - Mayo Clinic
Feb 29, 2024 · Most people with high blood pressure have no symptoms, even if blood pressure readings reach dangerously high levels. You can have high blood pressure for years without …
Hemoglobin test - Mayo Clinic
Apr 12, 2024 · Overview A hemoglobin test is a blood test. It measures the amount of a protein in red blood cells called hemoglobin. Hemoglobin carries oxygen to the body's organs and …
Blood urea nitrogen (BUN) test - Mayo Clinic
Aug 5, 2023 · Learn about the blood urea nitrogen (BUN) test to assess kidney function and what possible results could mean.
Ferritin test - Mayo Clinic
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 …
Prediabetes - Diagnosis and treatment - Mayo Clinic
Nov 11, 2023 · Treatment Healthy lifestyle choices can help you bring your blood sugar level back to normal, or at least keep it from rising toward the levels seen in type 2 diabetes. To prevent …