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unit

 [u´nit]
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.
Ångström unit angstrom.
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.
critical care unit intensive care unit.
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.
Hounsfield unit 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.
intensive care unit see intensive care unit.
International unit (IU)
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.
radiologic u's units used to measure radiation, including roentgens, rads, rems, and curies.
u's of service (UOS)
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.
SI unit any unit of the International System of units (the metric system); see also si units.
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.
terminal respiratory unit the functional unit of the lung, including a respiratory bronchiole, alveolar ducts and sacs, and alveoli; called also primary lobule of lung and primary respiratory lobule.
USP unit one used in the United States Pharmacopeia for expressing potency of drugs and other preparations.

u·nit (U),

(yū'nit), It is recommended that in handwritten material this word be written in full, because the abbreviation U is subject to frequent misinterpretation.
1. One; a single person or thing.
See also: international unit.
2. A standard of measure, weight, or any other quality, by multiplication or fractions of which a scale or system is formed.
See also: international unit.
3. A group of people or things considered as a whole because of mutual activities or functions.
See also: international unit.
[L. unus, one]

unit

(u´nit)
1. a single thing.
2. a quantity assumed as a standard of measurement. Symbol U.

Angström unit  angstrom.
atomic mass unit  (u) (amu) the unit mass equal to 112 the mass of the nuclide of carbon-12. Called also dalton.
Bethesda unit  a measure of the level of inhibitor to coagulation factor VIII; equal to the amount of inhibitor in patient plasma that will inactivate 50 per cent of factor VIII in an equal volume of normal plasma following a 2-hour incubation period.
Bodansky unit  the quantity of alkaline phosphatase that liberates 1 mg of phosphate ion from glycerol 2-phosphate in 1 hour under standard conditions.
British thermal unit  (BTU) the amount of heat necessary to raise the temperature of one pound of water one degree Fahrenheit, usually from 39°F to 40°F.
CGS unit  any unit in the centimeter-gram-second system.
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.
coronary care unit  a specially designed and equipped hospital area containing a small number of private rooms, with all facilities necessary for constant observation and possible emergency treatment of patients with severe heart disease.
intensive care unit  a hospital unit in which are concentrated special equipment and skilled personnel for the care of seriously ill patients requiring immediate and continuous attention; abbreviated ICU.
International unit  (IU) a unit of biological material, as of enzymes, hormones, vitamins, etc., established by the International Conference for the Unification of Formulas.
motor unit  the unit of motor activity formed by a motor nerve cell and its many innervated muscle fibers.
SI unit  any of the units of the Système International d'Unités (International System of Units) adopted in 1960 at the Eleventh General Conference of Weights and Measures.
Somogyi unit  that amount of amylase which will liberate reducing equivalents equal to 1 mg of glucose per 30 minutes under defined conditions.
Svedberg unit  (S) a unit equal to 10−13 second used for expressing sedimentation coefficients of macromolecules.
terminal respiratory unit  the anatomical and functional unit of the lung, including a respiratory bronchiole, alveolar ducts and sacs, and alveoli.
toxic unit , toxin unit the smallest dose of a toxin which will kill a guinea pig weighing about 250 gm in three to four days.
USP unit  one used in the United States Pharmacopeia in expressing potency of drugs and other preparations.

unit

(yo͞o′nĭt)
n.
1. An individual, group, structure, or other entity regarded as an elementary structural or functional constituent of a whole.
2. A precisely specified quantity in terms of which the magnitudes of other quantities of the same kind can be stated.
3. Medicine The quantity of a vaccine, serum, drug, or other agent necessary to produce a specific effect.

unit (U)

[yo̅o̅′nit]
Etymology: L, unus
1 a single item.
2 a quantity designated as a standard of measurement.
3 an area of a hospital that is staffed and equipped for treatment of patients with a specific condition or other common characteristics.

unit

1. A general term for a single discrete entity.
2. A quantity which is a standard of measurement.
3. 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.

u·nit

(yū'nit)
1. One; a single person or thing.
2. A standard of measure, weight, or any other quality, by multiplications or fractions of which a scale or system is formed.
3. A group of people or things considered as a whole because of mutual activities or functions.
4. Synonym(s): international unit.
[L. unus, one]

unit

standard of quantity, multiplications of which form a scale

u·nit

(yū'nit) It is recommended that in handwritten material this word be written in full, because the abbreviation U is subject to frequent misinterpretation.
1. One; a single person or thing.
2. A standard of measure, weight, or any other quality, by multiplication or fractions of which a scale or system is formed.
3. A group of people or things considered as a whole because of mutual activities or functions.
See also: international unit
[L. unus, one]

unit,

n one of the components of a whole.
unit, Ångstrom, (Å, a.u.)
n the unit of measure of wavelengths; one one-hundred-millionth of a centimeter.
unit, dental,
n 1. basically, the tooth, periodontium, and gingival unit, all of which are necessary for proper masticatory activity.
2. an article of equipment that contains an assembly of numerous items used in dental operations, such as a dental engine, operatory light, bracket, working table, saliva ejector, water supply, electric outlets, compressed air, or miscellaneous instruments. May or may not have a cuspidor.
unit, dentoperiodontal,
n the tooth and periodontium together.
unit dosing,
n a method for storing dental sealant materials and other products that lessens the risk of cross-contamination.
unit, gingival,
n the tough collagenous and epithelial covering of the neck of the tooth and the underlying periodontium.
unit, partial denture,
n the individual elements of the partial denture, each contributing some particular function.
unit, radiographic,
n a device designed to produce radiographs.
unit, radiographic, calibration,
n the determination of the kilovoltage peak (kVp) value of each autotransformer tap at various milliamperages, checking these values by means of a sphere gap or a prereading voltmeter.

unit

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.

Angstrom unit
atomic mass unit
see dalton.
International unit
1. see si units.
2. 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.
3. any of several arbitrary units that have been adopted by international bodies to express the quantities of certain vitamins (A, C, D and thiamin hydrochloride), hormones (androgen, chorionic gonadotropin, estradiol benzoate, estrone, insulin, progesterone and prolactin), and drugs (digitalis and penicillin).
SI unit
any unit of the International System of units (the metric system). See si units.

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.

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