2024 PN NCLEX Questions Related

Review 2024 PN NCLEX Questions related questions and content

What causes an older female client's hair to turn gray?

  • A. ''A loss of melanin occurs in the normal aging process.''
  • B. ''The number of sweat glands and blood vessels decreases in the normal aging process.''
  • C. ''The skin on the scalp becomes thin, causing moisture to escape.''
  • D. ''It is caused by hereditary factors.''
Correct Answer: A

Rationale: The correct answer is 'A loss of melanin occurs in the normal aging process.' Graying hair in older adults is primarily due to a decrease in the number of melanocytes responsible for providing pigment and hair color. This reduction in melanin production leads to gray hair. The other choices are incorrect. While it is true that the skin becomes thinner with aging and the number of sweat glands and blood vessels decreases, these changes are not directly related to graying hair. Additionally, hereditary factors can influence when graying starts, but they do not cause the graying of hair itself.