A student nurse is studying the effect of the drug isocarboxazid (Marplan) on neurobiology. The student should recognize that the neurotransmitter serotonin is catabolized by which enzyme?
A. Glycosyltransferase
B. Peptidase
C. Polymerase
D. Monoamine oxidase
D
Serotonin that is not returned to be stored in the axon terminal vesicles is catabolized by the enzyme monoamine oxidase. A monoamine oxidase inhibitor, such as Marplan, inhibits this catabolism, providing more available serotonin at the neuron synapse.
You might also like to view...
A client presents to the emergency department in sickle cell crisis. What intervention by the nurse takes priority?
a. Administer oxygen. b. Apply an oximetry probe. c. Give pain medication. d. Start an IV line.
A hospital patient has experienced a seizure. In the immediate recovery period, what action best protects the patient's safety?
A) Place the patient in a side-lying position. B) Pad the patient's bed rails. C) Administer antianxiety medications as ordered. D) Reassure the patient and family members.
Which patient behavior would require the most immediate limit-setting?
a. The patient makes self-deprecating remarks. b. At a goal-setting meeting, the patient interrupts others to express delusions. c. A patient shouts at a roommate, "You are perverted! You watched me undress." d. During dinner, a patient manipulates an older adult patient to obtain a second dessert.
Despite the fact that older adults are proportionately the highest users of health care services, many nurses harbor misconceptions and deficits in practice related to gerontological nursing. What is the most likely solution to this problem?
A) A shift from the treatment of older adults in institutional settings to home care B) Increased nursing education and clinical experience specific to working with older adults C) A focus on early discharge planning for older adults in hospital settings D) Increased use of aggressive pharmacologic interventions in the treatment of acute illnesses in older adults