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dashed we12 dashed we12
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6 years ago
A drug blocks the attachment of norepinephrine to a1 receptors. The patient may experience:
 
  a. hypertensive crisis.
  b. orthostatic hypotension.
  c. severe appetite disturbance.
  d. an increase in psychotic symptoms.
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wrote...
6 years ago
ANS: B
Sympathetic-mediated vasoconstriction is essential for maintaining normal blood pressure in the upright position. Blockage of a1 receptors leads to vasodilation and orthostatic hypotension. Orthostatic hypotension may cause fainting and falls. Teach patients ways of minimizing this phenomenon.
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