| AR | absolute risk; accounts receivable; achievement ratio; actinic reticuloid [syndrome]; active resista... |
|---|---|
| ASD | aldosterone secretion defect; Alzheimer senile dementia; antisiphon device; arthritis syphilitica de... |
| AST | allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antistreptolysin... |
| AT | abdominal thrusts; achievement test; Achilles tendon; Achard-Thiers [syndrome]; adaptive thermogenes... |
| At | acidity, total; astatine; atrium, atrial |
| atrial demand inhibited p. |
an artificial cardiac pacemaker that delivers stimuli to the atrium at a fixed rate in the absence of sensed atrial activity; spontaneous cardiac activity causes inhibition of pacemaker output, termination of the current stimulation cycle, and initiation of a new cycle. Called also AAI p.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| atrial demand triggered p. |
an artificial cardiac pacemaker that delivers stimuli to the atrium at a fixed rate in the absence of sensed atrial activity; spontaneous cardiac activity triggers pacemaker output, which falls ineffectively in the myocardial refractory period and initiates a new pacemaker stimulation cycle. Called also AAT p.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| atrial e. |
see intra-atrial e. and high right atrial e.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| atrial escape b. |
an ectopic beat originating within the atria; it occurs when the sinus node does not fire or fires ineffectively.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| atrial escape r. |
a cardiac dysrhythmia occurring when sustained suppression of sinus impulse formation causes other atrial foci to act as cardiac pacemakers.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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