A nurse is reinforcing teaching provided to a client and their caregivers on pituitary disorders that result in growth deficits. Which hormone does the nurse explain is primarily responsible for regulating growth in children?
Prolactin
Thyroid-stimulating hormone (TSH)
Growth hormone (GH)
Adrenocorticotropic hormone (ACTH)
The Correct Answer is C
A. Prolactin:
Prolactin promotes lactation, not growth.
B. Thyroid-stimulating hormone (TSH):
TSH regulates the thyroid gland but is not the primary growth hormone.
C. Growth hormone (GH):
GH, secreted by the anterior pituitary, stimulates growth in bones and tissues.
D. Adrenocorticotropic hormone (ACTH):
ACTH stimulates the adrenal cortex, not growth.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. During labor, pressure of baby's head on cervix stimulates release of oxytocin:
This is a classic example of positive feedback-oxytocin increases uterine contractions, which increase pressure and stimulate more oxytocin release.
B. Menstrual cycle:
The menstrual cycle involves both positive and negative feedback mechanisms, but is not a pure example of positive feedback.
C. Blood glucose regulation:
This is an example of negative feedback involving insulin and glucagon.
D. Wake/sleep cycle:
This is regulated by circadian rhythms, not primarily a feedback loop of endocrine hormones.
Correct Answer is B
Explanation
A. Ovulation: Ovulation is the release of an egg from the ovary.
B. Ectopic pregnancy: Implantation of a fertilized egg outside the uterus, commonly in the fallopian tube.
C. Menarche: Menarche is the first menstrual period.
D. Menses: Menses is the shedding of the uterine lining during menstruation.
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