Nokea
Medical treatment of myasthenia gravis includes:
- A. Thymectomy
- B. Physostigmine
- C. Edrophonium
- D. Anticholinergic agents
Correct Answer: C
Rationale: Edrophonium: Edrophonium is used in the diagnosis and short-term treatment of myasthenia gravis as it improves neuromuscular transmission by inhibiting acetylcholinesterase.
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An infant who has been in foster care since birth requires a blood transfusion. Who is authorized to give written, informed consent for the procedure?
- A. The foster mother
- B. The social worker who placed the infant in the foster home
- C. The registered nurse caring for the infant
- D. The nurse-manager
Correct Answer: A
Rationale: The foster mother, as the primary caregiver, is typically authorized to provide consent for medical procedures.
In a child with scabies, which of the following is the most appropriate treatment?
- A. Permethrin
- B. Benzoyl peroxide
- C. Hydrocortisone
- D. Calamine lotion
Correct Answer: A
Rationale: Permethrin cream is the most effective treatment for scabies, as it targets the mites causing the infestation.
A healthcare worker with no known exposure to tuberculosis has received a Mantoux tuberculosis skin test. The nurse's assessment of the test after 62 hours indicates 5 mm of erythema without induration. What is the best initial nursing action?
- A. Document negative results in the client's medical record
- B. Repeat the test immediately on the opposite forearm
- C. Notify the healthcare provider for further evaluation
- D. Schedule the worker for a chest X-ray
Correct Answer: A
Rationale: Erythema without induration is not considered a positive result. Documentation of negative findings is appropriate.
The pH of urine:
- A. Is a useful indicator of the acid/base balance of blood
- B. Rises on a vegetarian diet
- C. Is determined by the concentration of ammonium
- D. Is lower than 5.5 in renal tubular acidosis
Correct Answer: A
Rationale: Urine pH reflects blood acid/base balance. A vegetarian diet typically raises urine pH, and renal tubular acidosis causes a higher pH, not lower.
Two days after a nephrectomy, the client reports abdominal pressure and nausea, which assessment should the nurse implement?
- A. Palpate the abdomen
- B. Measure hourly urine output
- C. Ambulate client in hallway
- D. Auscultate bowel sounds
Correct Answer: D
Rationale: Auscultating bowel sounds helps assess for any bowel obstruction or ileus, which could be contributing to abdominal pressure.