Chpt. 1 - Key Terms Flashcards Preview

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Flashcards in Chpt. 1 - Key Terms Deck (15):
1

Analgesia

Absence of pain

2

Anesthesia

Loss of sensation

3

Balanced anesthesia

Administration of multiple drugs concurrently in smaller quantities than would be required if each were given alone, to produce sedation, tranquilization, muscle relaxation, analgesia, or a variety of other effects needed for a particular patient.

4

Epidural anesthesia

Regional anesthesia produced by injection of a local anesthetic or analgesic into the epidural space surrounding the spinal cord.

5

General anesthesia

A reversible state of unconsciousness, immobility, muscle relaxation, and loss of sensation throughout the entire body produced by administration of one or more anesthetic agents.

6

Hypnosis

A sleeplike state from which the patient can be aroused with sufficient stimulation.

7

Local anesthesia

A loss of sensation in a small area of the body produced by administration of a local anesthetic agent in proximity to the area of interest.

8

Narcosis

A drug-induced sleep from which the patient is not easily aroused and that is most often associated with the administration of narcotics.

9

Noxious

Painful or physically harmful.

10

Regional anesthesia

A loss of sensation in a limited area of the body produced by administration of a local anesthetic or other agent in proximity to sensory nerves.

11

Sedation

A drug-induced CNS depression and drowsiness.

12

Surgical anesthesia

A specific stage of general anesthesia in which there is a sufficient degree of analgesia and muscle relaxation to allow surgery to be performed without pain or movement.

13

Therapeutic index

TI
A ratio of the toxic to the therapeutic dose of a drug, used to measure relative safety.
A drug with a wide therapeutic index (much more of the drug is required to intoxicate a patient than is required to treat it) is relatively safer than a drug with a narrow therapeutic index (one for which the toxic and therapeutic doses are similar).

14

Topical anesthesia

A loss of sensation of a localized area produced by administration of a local anesthetic directly to a body surface or to a surgical or traumatic wound.

15

Tranquilization

A drug-induced state of calm in which the patient is reluctant to move and is aware of but unconcerned about its surroundings.