A baumannii Acinetobacter baumannii. See Acinetobacter.
(Pronounced AH-sin-neto-bacter). A group of bacteria found in soil, water, and hospitals where they can cause serious infections in immunocompromised people and are often resistant to antibiotics. Acinetobacter can be isolated from many sources including drinking and surface water, soil, sewage and different types of foods. At least a quarter of healthy people carry Acinetobacter harmlessly on their skin. But in hospitals some strains, particularly Acinetobacter baumannii, can cause infections including pneumonia and bacteremia (bloodstream infection). In technical terms, the Acinetobacter genus belongs to the gamma subdivision of Proteobacteria, and to the Moraxellaceae family.
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Acute myocardial infarction
This is the medical term for a heart attack. It literally means sudden death of heart muscle. This is normally caused by atherosclerosis. Also called an AMI, Coronary or MI.
See Advanced Cardiac Life Support.
Advanced Cardiac Life Support
This is the more advanced skill set used in resuscitating cardiac arrest patients. This set starts with Basic Life Support, and extends it with invasive techniques such as intubation, specialized drugs, IV access and more sophisticated diagnostic techniques. This skill set is practiced out of the hospital by Paramedics and flight nurses, and in the hospital by most critical care personnel. It is also referred to as ALS and ACLS.
See Acute Myocardial Infarction.
In genetics, A stands for adenine, one member of the A-T (adenine-thymine) base pair in DNA. The other base pair in DNA is G-C (guanine-cytosine). Each base pair forms a "rung of the DNA ladder." A DNA nucleotide is made of a molecule of sugar, a molecule of phosphoric acid, and a molecule called a base. The bases are the "letters" that spell out the genetic code. In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In DNA base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine. Adenine is also one of the bases in RNA. There it always pairs with uracil (U). The base pairs in RNA are therefore A-U and G-C.
A test that measures how much glucose has been sticking during the past 3–4 months to hemoglobin, the substance in the red blood cells that carries oxygen to the cells of the body. The A1C test is important in diabetes as a long-term measure of control over blood glucose. Even outside of diabetes, an elevated A1C level may be a cardiovascular risk factor.
Abdominal aortic aneurysm.
Spoken of as the "triple-AS", the American Association for the Advancement of Science is an organization concerned not only with the biomedical sciences but with all of the sciences. The AAAS publishes the weekly journal "Science", one of the great scientific periodicals. "Science" carries a remarkable range of new scientific information including, for example, findings from the Apollo mission to Mars as well as reports from the project to map the human genome.
American Association of Dermatology, one of many important professional societies in the health arena. The AMA (the American Medical Association) is a better known example in the US. Only a small selection of the many health-related organizations is given as a sampler in this DICTIONARY.
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