1. a single thing; one segment of a whole that is made up of identical or similar segments.
2. a specifically defined amount of anything subject to measurement, as of activity, dimension, velocity, volume, or the like.
3. a distinct part of a hospital, usually having a specific physical location and serving a defined function; see under names of specific units.
atomic mass unit
(u) (amu) the unit of mass equal to ¹⁄₁₂ the mass of the nuclide of carbon 12. Called also dalton
autonomous nursing unit a nursing unit under a decentralized administration system in which the staff is responsible for all aspects of unit functioning.
British thermal unit
(BTU) a unit of heat formerly widely used, being the amount necessary to raise the temperature of 1 pound of water from 39° to 40°F., equal to approximately 252 calories
CH50 unit the amount of complement that will lyse 50 per cent of a standard preparation of sheep red blood cells coated with antisheep erythrocyte antibody.
continuing education unit (CEU) a unit of credit for educational offerings given to professional persons, determined by a professional organization according to a mathematical formula after a thorough review of the program of study, the qualifications of the instructors, and the program objectives.
electrostatic u's (esu) that system of units that is based on the fundamental definition of a unit charge as one that will repel a similar charge with a force of 1 dyne when the two charges are 1 cm apart in a vacuum.
environmental control unit a computerized system that allows the handicapped individual to operate several different appliances using a keyboard or other input device.
heat unit the amount of heat energy that is produced by one kVp (kilovolt peak) and one mA (milliampere) for one second with single phase, full wave rectified radiographic equipment.
an arbitrary unit of x-ray attenuation used for CT scans. Each voxel
is assigned a value on a scale in which air has a value of −1000; water, 0; and compact bone, +1000.
1. a unit of enzyme activity equal to the amount of enzyme that catalyzes the conversion of one micromole of substrate or coenzyme per minute under specified conditions (temperature, pH, and substrate concentration) of the assay method. Abbreviated U.
2. any of several arbitrary units that have been adopted by international bodies to express the quantities of certain vitamins (A, C, D, and thiamine hydrochloride), hormones (androgen, chorionic gonadotropin, estradiol benzoate, estrone, insulin, progesterone, and prolactin), and drugs (digitalis and penicillin).
Kienböck's unit a unit of x-ray exposure equal to 0.1 erythema dose; symbol X.
motor unit the unit of motor activity formed by a motor nerve cell and its many innervated muscle fibers.
postanesthesia care unit
(PACU) a specialty unit in a hospital for giving postanesthesia care
(care of patients recovering from anesthesia and intravenous sedation); formerly called recovery room
u's of service
1. the number of procedures done by a department.
2. individuals or groups of individuals who are the recipients of nursing care.
short procedures unit (short term care unit) a nursing unit where patients are briefly cared for following a medical or surgical procedure and are then discharged without spending the night.
step-down unit a nursing unit designated to provide care for patients who are stable enough to be discharged from the intensive care unit but are not yet ready to be cared for on a medical-surgical unit.
Svedberg unit (S) a unit equal to 10−13 second used for expressing sedimentation coefficients of macromolecules.
Svedberg flotation unit (Sf) a unit equal to 10−13 second used for expressing negative sedimentation coefficients of macromolecules that float rather than sink in a centrifuge, e.g., lipoproteins.
USP unit one used in the United States Pharmacopeia for expressing potency of drugs and other preparations.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. A general term for a single discrete entity.
2. A quantity which is a standard of measurement.
A place where something is performed. See Accreditation unit, Allergy unit, Autologous unit
, Bioequivalent allergy unit
, British Thermal unit
, Burst-forming unit, Central processing unit, Chest pain unit, Collective bargaining unit, Colony-forming unit, Critical care unit, Crossover unit
, CSU/DSU unit, Electron unit, Fetoplacental unit
, Hounsfield unit, ICU unit, International unit
, Map unit, Mediational unit, MET unit, MICU
, Montevideo unit
, Neonatal intensive care unit, Nephelometric turbidity unit, Output unit, Relative value unit
, Revive Ring/Vacuum Therapy unit, Section unit, Terminal duct lobular unit, Transciption unit.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
Patient discussion about unit
Q. United happy family but now... We are a united happy family with married brothers, sisters and their families. Our father died when he was suffering from Bipolar1. Now one of my sisters is diagnosed as Bipolar II. We are afraid that our family happiness will vanish soon. Please let me know about the difference between bipolar1 and bipolar11 and what the treatments available are?
A. Hey pete,
Any family that is dealing with Bipolar disorder will have some difficult and trying times. you obviously love your sister so just be patient and supportive to her. Encourage her to take medications as perscribed and encourage her to get theropy, I think these steps are invaluable to a person with bipolar. Bipolar ii is less severe than bipolar 1. Bipolar ii is usually free of the hillucinations etc... However is still very serious and needs to be treated appropriately.
I hope your family stays strong through all your struggles, with the right support and theropy/meds and the love of her family your sister should do well in learning to manage the illness...
Q. Do we have these drugs in the United States and could you give me some information about them? Hello friends, I am diagnosed as Fibromyalgia for the past 6 months and I have been talking to people across the world and they have suggested taking some drugs that I am unable to find here in the United States. The people I have been talking to are mostly people from Australia. They have recommended Lamictal and Ultram. Do we have these drugs in the United States and could you give me some information about them?
A. I took everything over the courter,they didnot work,i had to go to a rheumatologist. She put me on ultram.they work.try them.
Q. Is methotrexate available in the United States as a treatment for fibromyalgia? Last year I was diagnosed as fibromyalgia. I feel a lot of fatigue and stiffness. I came upon a website from where I read that rheumatoid arthritis causes those same symptoms and can be treated with methotrexate. After reading that, I purchased a half year supply of the drug over the counter in Mexico. It eliminated all of my symptoms. A month after my supply ran out, all the symptoms returned. Is methotrexate available in the United States as a treatment for fibromyalgia?
A. Yes fatigue and stiffness are some of the symptoms of fibromyalgia. Methotrexate is certainly available in the United States, but it is not approved for nor used as a treatment for fibromyalgia. It was originally developed to treat cancer and subsequently found to be very effective for a number of inflammatory disorders, such as RA and psoriasis. Because fibromyalgia is not an inflammatory disorder – that is, there is no identifiable inflammation in the muscles or joints in individuals with this condition – it is not clear why you responded to this drug. You should tell your physician about your response to methotrexate. It may be possible that you have an inflammatory disorder rather than – or in addition to – fibromyalgia.More discussions about unit
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