Blood Institute, National Heart, Lung, and
Blood Institute, National Heart, Lung, and: One of the National Institutes of Health in the U.S., the NHLBI’s mission is to “provide leadership for a national research program in diseases of the heart, blood vessels, lungs, and blood and in transfusion medicine through support of innovative basic, clinical, and population-based and health education research.”
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- Blood pH
Blood pH: The acidity or alkalinity of blood. The pH of any fluid is the measure of the hydrogen ion (H-) concentration. A pH of 7 is neutral. The lower the pH, the more acidic the blood. A variety of factors affect blood pH including what is ingested, vomiting, diarrhea, lung function, endocrine function, kidney […]
- Blood poisoning
Blood poisoning: The medical term is “septicemia.” No matter which of these two terms-blood poisoning or septicemia-you prefer, what is meant is the same thing, namely a “general (systemic) disease that is due to the presence and the persistence of germs (pathogenic microorganisms) or their toxins in the bloodstream.” The “germs” can be bacteria (in […]
- Blood pressure
Blood pressure: The blood pressure is the pressure of the blood within the arteries. It is produced primarily by the contraction of the heart muscle. It’s measurement is recorded by two numbers. The first (systolic pressure) is measured after the heart contracts and is highest. The second (diastolic pressure) is measured before the heart contracts […]
- Blood pressure, high
Blood pressure, high: Also known as hypertension, high blood pressure is, by definition, a repeatedly elevated blood pressure exceeding 140 over 90 mmHg — a systolic pressure above 140 or a diastolic pressure above 90. Chronic hypertension is a “silent” condition. Stealthy as a cat, it can cause blood vessel changes in the back of […]
- Blood pressure, low
Blood pressure, low: Any blood pressure that is below the normal expected for an individual in a given environment. Low blood pressure is also referred to as hypotension. Low blood pressure is a relative term because the blood pressure normally varies greatly with activity, age, medications, and underlying medical conditions. Low blood pressure can result […]