A nursing instructor is teaching a class about the role of dopamine in substance abuse.Which student statement indicates appropriate understanding?
A) "The dopamine D(1) and dopamine D(2) receptors are responsible for co-occurring disorders."
B) "Dopamine increases opioid transmission, and this reinforces the cycle of substance abuse."
C) "Dopamine causes changes in brain neurotransmission that enhance the cycle of substance abuse."
D) "The dopamine D(3) receptor is involved in drug-seeking behaviors."

Question

Quizplus · Accepted Answer

A) Although most studies have focused on the role of dopamine D(1) and dopamine D(2) receptors in sustaining the addictive danger of drugs, recent studies also have shown that the dopamine D(3) receptor is involved in drug-seeking behavior. Ethanol, not dopamine, increases opioid transmission and reinforces the cycle of substance abuse. Dopamine does not cause changes in brain neurotransmission that enhance the cycle of substance abuse. D(1) and D(2) receptors are not responsible for co-occurring disorders.
B) Although most studies have focused on the role of dopamine D(1) and dopamine D(2) receptors in sustaining the addictive danger of drugs, recent studies also have shown that the dopamine D(3) receptor is involved in drug-seeking behavior. Ethanol, not dopamine, increases opioid transmission and reinforces the cycle of substance abuse. Dopamine does not cause changes in brain neurotransmission that enhance the cycle of substance abuse. D(1) and D(2) receptors are not responsible for co-occurring disorders.
C) Although most studies have focused on the role of dopamine D(1) and dopamine D(2) receptors in sustaining the addictive danger of drugs, recent studies also have shown that the dopamine D(3) receptor is involved in drug-seeking behavior. Ethanol, not dopamine, increases opioid transmission and reinforces the cycle of substance abuse. Dopamine does not cause changes in brain neurotransmission that enhance the cycle of substance abuse. D(1) and D(2) receptors are not responsible for co-occurring disorders.
D) Although most studies have focused on the role of dopamine D(1) and dopamine D(2) receptors in sustaining the addictive danger of drugs, recent studies also have shown that the dopamine D(3) receptor is involved in drug-seeking behavior. Ethanol, not dopamine, increases opioid transmission and reinforces the cycle of substance abuse. Dopamine does not cause changes in brain neurotransmission that enhance the cycle of substance abuse. D(1) and D(2) receptors are not responsible for co-occurring disorders.

A Nursing Instructor Is Teaching a Class About the Role