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drive

(drīv) The force or impulse to act.

drive control

One of various devices and adapted equipment, including hand or foot controls, for modifying a motor vehicle for use by persons with physical disability.

driver rehabilitation therapist

A specialist who evaluates and provides training to increase driving independence in persons with physical, cognitive, or perceptual deficits. A trained expert in driver rehabilitation is known as a certified driver rehabilitation specialist (CDRS).

driving while intoxicated

ABBR: DWI. A crime defined as the operation of a motor vehicle after the use of any substance, including alcohol or illicit drugs, that may impair one’s judgment, cognition, coordination, reflexes, or ability to react appropriately in traffic. Most states rely on a standard test that includes both observable impairment in motor function, speech, and balance and an elevated blood alcohol level or a positive screening test for other intoxicants. Also called driving under the influence.

dromotropic

(drōm″ŏ-trop′ik, drom″ŏ-trop′ik) [Gr. dromos, running, race course + -tropic] Affecting the conductivity of nerve or muscle fibers. For example, a drug (such as diltiazem or verapamil) that slows electrical conduction through the atrioventricular node of the heart has a dromotropic effect on the AV node. SEE: inotropic. dromotropy (drōm″ŏ-trop′ē, drom″ŏ-trop′ē), n.

dronabinol

(drō-năb′ĭ-nol) The principal psychoactive substance present in Cannabis sativa (marijuana). SEE: marijuana.

-dronate

A suffix used in pharmacology to designate a drug that alters the metabolism of calcium.

drooling

Ptyalism.

droop

(droop) The sagging of an organ or tissue; ptosis.

drop

(drop) 1. A minute spherical mass of liquid. 2. Failure of a part to maintain its normal position, usually due to paralysis or injury.

falling d. 1. In physical diagnosis, a metallic tinkle heard over the normal stomach and bowel when they are inflated. 2. A metallic tinkle heard over large cavities containing fluid and air, as in hydropneumothorax.

hanging d. Application of a drop of solution to a small glass coverslip. This is then inverted over a glass slide with a depression in it. The contents of the suspended solution can be examined microscopically.

head d. Dropped head syndrome.

wrist d. A condition in which the hand is flexed at the wrist and cannot be extended. It may be due to injury of the radial nerve or paralysis of the extensor muscles of the wrist and hand. SYN: drop hand.

drop arm test

A test used to identify ...

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