DNA, satellite: DNA that contains many tandem (not inverted) repeats of a short basic repeating unit. Satellite DNA is located at very specific spots in the genome (on chromosomes 1, 9, 16 and the Y chromosome, the tiny short arms of chromosomes 13-15 and 21 and 22, and near the centromeres of chromosomes).
- DNA, repetitive
DNA, repetitive: DNA sequences that are repeated in the genome. These sequences do not code for protein. One class termed highly repetitive DNA consists of short sequences, 5-100 nucleotides, repeated thousands of times in a single stretch and makes up satellite DNA. Another class termed moderately repetitive DNA consists of longer sequences, about 150-300 nucleotides, […]
DNS: On a prescription, Do Not Substitute. If a physician orders a particular drug and writes DNS on the prescription, that tells the pharmacist not to substitute a generic version or any other drug for the prescribed drug.
- Do not resuscitate order
Do not resuscitate order: A request not to have cardiopulmonary resuscitation (CPR) done if the heart stops or breathing ceases. One can use an advance directive form to make this request or one can tell the doctor to put a DNR order in the medical record. DNR orders are accepted by doctors and hospitals in […]
DOB: Date of birth, an abbreviation that is frequently used in medical charting.
- Dobelle, William H.
Dobelle, William H.: (1941-2004) A biomedical researcher who redesigned the artificial hip, developed a portable breathing pacemaker and an experimental partial vision system for the blind involving transmission of electrical signals to electrodes implanted in the brain. The system used a tiny camera mounted in glasses worn by the blind person. The camera images were […]