The nurse explains that depression is thought to be the result of a deficit of which neurotransmit-ter?
a. Norepinephrine
b. Serotonin
c. Acetylcholine
d. Dopamine
B
Serotonin is a neurotransmitter of the central nervous system. It is important in sleep, pain per-ception, and emotional states. Lack of serotonin can lead to depression. Norepinephrine and ace-tylcholine are neurotransmitters of the autonomic nervous system. Norepinephrine plays an im-portant role in the fight-or-flight reaction (constriction of the blood vessels, dilation of the pupils, increased heart rate, increased awareness, and vigilance). Acetylcholine causes decreased heart rate and force of contraction and plays a role in the sleep-wake cycle. Dopamine is located mostly in the brainstem. It is thought to play a role in controlling complex movements, motiva-tion, and cognition.
You might also like to view...
The research design for a quantitative study involves decisions with regard to all of the following, except:
A) Which conceptual framework to use B) Whether there will be an intervention C) What types of comparisons will be made D) How many times data will be collected
While a woman is being treated for preterm labor with IV magnesium sulfate, it is essential that the nurse frequently assess the patient's:
a. appetite. b. skin turgor. c. capillary refill. d. respirations.
The nurse should teach the parents of a breastfed newborn that solid foods should be
a. introduced by adding cereal to the formula bottle at 2 months b. given at bedtime to help the baby sleep through the night c. delayed in breastfeeding mothers until after 9 months of age d. started with iron-fortified rice cereal at 6 months of age
A 17-year-old female is planning to attend college after high school graduation. The school nurse informs the student that a health care visit needs to be scheduled prior to the start of college for what primary purpose?
1. To allow the student to obtain birth-control pills 2. To make a nutrition plan for when in classes 3. To obtain immunization updates 4. To assess whether there are any health problems that could interfere with the student's performance