Q- Which one of the following medications has a significant alpha-adrenergic blocking activity?
A- Chlorpromazine
B- Clozapine
C- Haloperidol
D- Risperidone
A- Chlorpromazine- Chlorpromazine, a first-generation antipsychotic, has strong alpha-adrenergic blocking effects, which can cause hypotension. Clozapine and risperidone have weaker alpha-blocking effects, and haloperidol has minimal alpha-blocking activity.
Q- Which of the following effects is caused by alcohol intake?
A- Decreased body heat loss
B- Increased body heat loss
C- Increased body temperature
D- No effect on body temperature or body heat loss
B- Increased body heat loss- Alcohol causes peripheral vasodilation, which makes warm blood move closer to the skin surface. This leads to increased heat loss, even though the person may feel warm.
Q- Which of the following medications is considered a selective beta-1 adrenergic agonist?
A- Amrinone
B- Dobutamine
C- Dopamine
D- Prazosin
B- Dobutamine- Dobutamine is a selective β₁-adrenergic agonist, increasing heart rate and contractility with minimal β₂ or α activity.
They are ABB. Thanks for answering the questions. Have the best of luck.
acbB