Asked by Faith Hoppe on May 17, 2024
Verified
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.
Norepinephrine
A neurotransmitter and hormone involved in the body's fight or flight response, affecting mood and blood pressure.
Orthostatic Hypotension
A form of low blood pressure that happens when standing up from sitting or lying down, leading to dizziness or lightheadedness.
Hypertensive Crisis
A severe and sudden increase in blood pressure that can lead to stroke, heart attack, or other critical conditions if not promptly treated.
- Describe the physiological effects of certain drug-receptor interactions, particularly focusing on norepinephrine and its role in blood pressure regulation.
Verified Answer
OG
Olwethu GuzanaMay 19, 2024
Final Answer :
B
Explanation :
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.
Learning Objectives
- Describe the physiological effects of certain drug-receptor interactions, particularly focusing on norepinephrine and its role in blood pressure regulation.