A man narrowly misses another car while driving through a busy intersection. His sympathetic nervous system is activated; his heart pounds and his breathing is rapid. As he calms down, his heart rate and breathing return to normal
Which neurotransmitter is in charge now that the excitement is over and he is calmed down?
a. Norepinephrine
b. Acetylcholine
c. Prostaglandin
d. Serotonin
ANS: B
Acetylcholine mediates parasympathetic (peaceful) function. Norepinephrine mediates the sympathetic stress response. Prostaglandins are involved in pain sensation, and serotonin affects mood.
You might also like to view...
It is necessary for the nurse caring for a patient to understand the pathophysiology behind shock. Which of the following statements best describes the pathophysiologic rationale for shock?
A) Blood is shunted from vital organs to peripheral areas of the body. B) Cells lack an adequate blood supply and are deprived of oxygen and nutrients. C) Circulating blood volume is decreased. D) Hemorrhage occurs as a result of trauma.
The nurse completes an admission assessment on an older adult patient. The nurse identifies which factor that may contribute to sleep problems?
a. Exposure to sun-light c. Use of a sleep aid b. Polypharmacy d. Decreased fluid in-take
You are part of the health care team caring for a 77-year-old woman who has been admitted to your rehabilitation facility after falling and breaking both legs. The patient complains of pain in both legs
Pain management has become an issue for the patient and her family. The patient appears to be getting more and more ill and may have to be readmitted to an acute-care facility. What do you know about the negative effects of the stress of pain? A) It makes children more vulnerable. B) It is particularly harmful in the elderly who have been injured or who are ill. C) It affects only those who are already debilitated. D) It has no negative effects; it just alerts the person/health care team of something wrong in the body.
Serotonergic syndrome, a rare interaction between SSRI and MAO inhibitor medications, dictates which of the following number of days for a washout period before administration of a MAO inhibitor after the person has been on an SSRI?
a. 2 days b. 2 weeks c. 2 months d. 6 weeks