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agitation

(aj″ĭ-tā′shŏn) [L. agitare, to drive] 1. Excessive restlessness, increased mental, and, esp., physical activity.

PATIENT CARE: Agitation may complicate many medical and psychiatric conditions and make management of patients difficult, frustrating, and sometimes dangerous. Agitation is common in older adults, patients with dementia, and in those with organic brain syndromes. The agitated patient should always be addressed with respect; attempts should be made to calm him or her with supportive listening, a composed affect, and genuine reassurance. The presence of a calm and respected family member may be helpful. Reorientation of the patient to his or her surroundings and the reason for health care interventions or hospitalization should be provided. Medical therapies, including antipsychotic drugs, sometimes in combination with benzodiazepines or other sedatives, are variably effective.

image Health care professionals who work with agitated patients are at a significant risk of being injured at work. Institutional programs to limit staff injury may decrease this hazard. Protocols for defusing violent situations and de-escalating interpersonal tensions may also decrease the risk.

2. Tremor. 3. Severe motor restlessness, usually nonpurposeful, associated with anxiety. 4. Shaking of a container so that the contents are rapidly moved and mixed.

Agkistrodon

(ag-kis′trŏ-don″, ang-kis′trŏ-don″) [L. fr. Gr. ankistron, fishhook + Gr. odōn, tooth] A genus of ovoviviparous pit vipers found in the U.S. and Central America.

A. contortrix SEE: copperhead.

A. piscivorus SEE: cottonmouth.

aglossia

(ā″glos′ē-ă) [a- + glossa + -ia] Congenital absence of the tongue.

aglossostomia

(ā″glos-ŏ-stō′mē-ă) [a- + glosso- + stoma] Congenital absence of the tongue and mouth.

aglutition

(ā″gloo-tish′ŏn) [a- + L. glutire, to swallow] Difficulty in swallowing or inability to swallow.

aglycon, aglycone

(a-glī′kon″, a-glī′kōn″) [1an- + glyco- + -one] An isoflavone attached to the chemical structure of digitalis glycosides. It is responsible for the cardiotonic activity of those agents.

aglycosuric

(ā″glī″kō-shoor′ik) [a- + glycosuria + -ic] Free from glycosuria.

agnathia

(ag-nā′thē-ă) [a- + gnath- + -ia] Absence of the mandible.

agnatic

(ag-nat′ik) [L. agnatus, kinsman on one’s father’s side] Patrilineal.

agnea

(ag′nē-ă) Inability to recognize objects.

AgNO3

Formula for silver nitrate.

agnogenic

(ag″nō-jen′ik) [1an- + Gr. gnōsis, knowledge + -genic] Idiopathic.

agnosia

(ag-nō′zhă, shă) [a- + Gr. gnōsis,...

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