A nurse is assisting with teaching a class about the function of cells in the epidermis. The nurse should include that which of the following cells determine skin color?

Keratinocytes

Melanocytes

Merkel cells

Langerhans cells

Answer and Explanation

The Correct Answer is B

A. Keratinocytes are the most abundant cells in the epidermis, responsible for producing keratin, which strengthens skin but does not determine skin color.

B. Melanocytes produce melanin, the pigment responsible for skin color. They play a key role in protecting the skin from ultraviolet radiation.

C. Merkel cells are mechanoreceptors involved in touch sensation and do not influence pigmentation.

D. Langerhans cells are part of the immune system, aiding in the detection and presentation of pathogens, with no role in pigmentation.

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Correct Answer is ["B","C","D","E","F"]

Explanation

Mucous membranes pink, skin warm and dry.
Coughing and clearing throat when eating.
Voice hoarse after swallowing.
Temperature 38 °C (100.4 °F)
Bilateral breath sounds with wheezing heard in upper lobes.
Oxygen saturation 88% on room air

Rationale

Coughing and clearing throat when eating: This indicates potential dysphagia (difficulty swallowing), which increases the risk of aspiration pneumonia—a serious complication post-stroke.

Voice hoarse after swallowing: Hoarseness or voice changes can also signal impaired swallowing or aspiration risk, necessitating evaluation by a speech therapist or further swallowing studies.

Temperature 38.5°C (101.3°F): An elevated temperature may suggest infection (e.g., aspiration pneumonia or another complication) and warrants further investigation, particularly in a post-stroke client.

Bilateral breath sounds with wheezing heard in upper lobes: Wheezing could indicate an airway obstruction, aspiration, or developing respiratory compromise, which is critical in this population.

Oxygen saturation 88% on room air: Hypoxemia is a critical finding requiring immediate intervention, such as supplemental oxygen and investigation into the underlying cause (e.g., aspiration, infection, or pulmonary embolism).

Mucous membranes pink, skin warm and dry: These findings are within normal limits and do not indicate a pressing issue.

A. Burn injury B. Hypothermia C. Financial difficulties D. Wrist fracture

Correct Answer is C

Explanation

A. Burn injuries are physical stressors.

B. Hypothermia is a physical stressor.

C. Financial difficulties are a psychological stressor, as they can cause emotional distress and anxiety.

D. A wrist fracture is a physical stressor.

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A nurse is assisting with teaching a class about the function of cells in the epidermis. The nurse should include that which of the following cells determine skin color?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is ["B","C","D","E","F"]

Explanation

A nurse is assisting with teaching a class about sources of stress. The nurse should include that which of the following is an example of a psychological stressor

Correct Answer is C

Explanation

A nurse collecting data on a client who has vitamin A deficiency. Which of the following findings should the nurse expect?

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