While working in an allergy clinic, the nurse notices that many ...

[123654777]

While working in an allergy clinic, the nurse notices that many patients come in with all types of skin reactions.
 
  The nurse working in this area knows that which cells play a role in the development of allergic skin condition?
  A)
  Langerhans cells
  B)
  Merkel cells
  C)
  Spherical melanosomes
  D)
  Keratin

Question 2

Which of the following clients is most likely to have low bone density?
 
  A)
  A 70-year-old woman with increased numbers of osteoblasts.
  B)
  A 78-year-old female whose osteoclast function is inhibited.
  C)
  A 65-year-old male who is noted to have osteopenia.
  D)
  A 68-year-old male who takes vitamin D supplements.

[leahm14]

Answer to Question 1

Ans:
A

Feedback:

Langerhans cells, the antigen-presenting cells of the epidermal skin, not only protect against harmful pathogens but also play an important role in the development of allergic skin conditions. Merkel cells play a role in the neuroendocrine cell function such as neurotransmission for autonomic nerves. Spherical melanosomes are found in people with light skin. Red hair has spherical melanosomes. Keratin is a protein that forms the surface of the skin and is also the structural protein of the hair and nails.

Answer to Question 2

Ans:
C

Feedback:

Osteopenia is characterized by a reduction in bone mass greater than expected for age, race, or sex that occurs because of a decrease in bone formation, inadequate bone mineralization, or excessive bone deossification. Increases in osteoblasts, inhibition of osteoclasts, and vitamin D supplementation would all be associated with high bone density.

[123654777]

Excellent

[peter]

Thanks for the timely response, appreciate it