The nurse working with parents of school-aged children will talk ...

[corkyiscool3328]

The nurse working with parents of school-aged children will talk about growth hormone with the parents and stress that this hormone is secreted mainly at which of the following times?
 
  a. during exposure to sunlight or fluorescent light
  b. when the child is most active and jarring the long bones
  c. primarily after the onset of sleep
  d. the short period after intake of food high in calories

Question 2

Which of the following systems or mechanisms regulates the secretion of aldosterone?
 
  a. renin-angiotensin system
  b. negative feedback system involving adrenocorticotropic hormone (ACTH)
  c. immune system
  d. baroreceptors in the circulatory system

[Brummell1998]

Answer to Question 1

C

Feedback
A Incorrect. Talking about growth hormone with parents, the nurse will not stress that this hormone is secreted mainly during exposure to sunlight or fluorescent light.
B Incorrect. Talking about growth hormone with parents, the nurse will not stress that this hormone is secreted mainly when the child is most active and jarring the long bones.
C Correct. Growth hormone plays a primary role in postnatal growth. It is released in a pulsatile (pulsating) fashion throughout the day; however, most is secreted after the onset of sleep.
D Incorrect. Talking about growth hormone with parents, the nurse will not stress that this hormone is secreted mainly during the short period after intake of food high in calories.

Answer to Question 2

A

Feedback
A Correct. Aldosterone is the most important mineralocorticoid, causing sodium retention and potassium excretion. Its secretion is regulated by the renin-angiotensin system.
B Incorrect. The negative feedback system involving adrenocorticotropic hormone (ACTH) does not regulate the secretion of aldosterone.
C Incorrect. The immune system does not regulate the secretion of aldosterone.
D Incorrect. The baroreceptors in the circulatory system do not regulate the secretion of aldosterone.