Nokea
The nurse is applying a cool compress to the forehead of a client with an elevated temperature. This is an example of what type of heat loss?
- A. Radiation
- B. Evaporation
- C. Conduction
- D. Convection
Correct Answer: C
Rationale: Conduction is the transfer of heat through direct contact. Radiation is the transfer of surface heat in the environment. Evaporation is the loss of moisture or water. Convection is the transfer of heat by means of currents of liquids or gases in which warm air molecules move away from the body.
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A client is having cryosurgery to remove a growth on the leg. How long will the client be informed that healing will take?
- A. 3 to 5 days
- B. Up to 1 week
- C. 2 to 4 weeks
- D. 4 to 6 weeks
Correct Answer: D
Rationale: Cryosurgery is the application of extreme cold to destroy tissue. After application of extreme cold, the area thaws and becomes gelatin-like in appearance. A scab forms at the site. Healing takes approximately 4 to 6 weeks.
Which of the following pigments influences hair color?
- A. Pheromones
- B. Keratin
- C. Seburin
- D. Melanin
Correct Answer: D
Rationale: Melanin, produced by the melanocytes in the hair roots, influences hair color. Pheromones are hormone-like chemicals that communicate reproductive and social information among the lower animal species. Seburin is a lubricant that prevents drying and cracking of the skin and hair. Keratin is a tough protective protein.
The nurse is caring for a client in the long-term care facility who had been living at home and being cared for by a family member. The family member states having had a difficult time getting the client to eat or drink and that the client developed a 'bed sore.' The nurse observes a serous drainage covering the dressing and a 2x2 cm crater that is 0.5 cm deep. What stage does the nurse document this pressure sore as?
- A. Stage I
- B. Stage II
- C. Stage III
- D. Stage IV
Correct Answer: C
Rationale: Stage III pressure sores involve superficial skin impairment that progresses to a shallow crater extending to the subcutaneous tissue, often with serous drainage. Stage I is characterized by redness of intact skin. Stage II includes a blister or shallow break in the skin. Stage IV involves deep ulceration exposing muscle or bone.
Which of the following conditions is the cause of thickening of the nail?
- A. Fungal infection
- B. Long-standing pulmonary disease
- C. Myocardial infarction
- D. Iron-deficiency anemia
Correct Answer: A
Rationale: Long-standing poor circulation leads to nail thickening, especially of the lower extremities. Nails thicken when there is a fungal infection and poor circulation. Clubbing of the nails suggests a long-standing cardiopulmonary disease. Concave-shaped nails are a sign of iron-deficiency anemia. Myocardial infarction does not cause thickening of nails.
Which medication classification is prescribed when allergy is a factor causing the skin disorder?
- A. Corticosteroids
- B. Antihistamines
- C. Antibiotics
- D. Local anesthetics
Correct Answer: B
Rationale: Antihistamines are frequently prescribed when an allergy is a factor in causing the skin disorder. They relieve itching and shorten the duration of allergic reaction. Corticosteroids are used to relieve inflammatory or allergic symptoms. Antibiotics are used to treat infectious disorders. Local anesthetics are used to relieve minor skin pain and itching.