Which neurotransmitter is active in both the peripheral and central nervous system (CNS)?
Norepinephrine
Serotonin
Substance P
Dynorphins
The Correct Answer is A
Choice A rationale: Norepinephrine is a neurotransmitter that is active in both the peripheral and central nervous systems.
Choice B rationale: Serotonin is primarily active in the central nervous system.
Choice C rationale: Substance P is a neurotransmitter that functions more in the peripheral nervous system.
Choice D rationale: Dynorphins primarily function in the central nervous system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale: Diphenhydramine blocks the action of histamine by binding to H1 receptors, rather than preventing its release from mast cells.
Choice B rationale: Diphenhydramine works by blocking the activation of histamine receptors, preventing the effects of histamine.
Choice C rationale: Diphenhydramine is not involved in preventing axonal conduction.
Choice D rationale: Diphenhydramine is an H1 receptor antagonist and does not promote receptor activation.
Correct Answer is B
Explanation
Choice A rationale: A blood pressure reading of 130/80 mmHg is within the normal range and would not be a priority to report.
Choice B rationale: Expiratory wheezing is a potential adverse effect of propranolol, especially in patients with a history of asthma or other respiratory conditions. It should be reported promptly to the provider.
Choice C rationale: Hunger and thirst are not typically associated with adverse effects of propranolol.
Choice D rationale: A pulse of 98 beats/min is within the normal range and would not be a priority to report.
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