Nokea
The doctor orders a Tensilon test for a woman suspected of having myasthenia gravis. Which statement is true about this test?
- A. A positive result will be evident within one minute of injection of Tensilon if she has myasthenia gravis.
- B. This is of diagnostic value in only 25% of patients with myasthenia gravis.
- C. Administration of Tensilon causes an immediate decrease in muscle strength for about an hour in persons with myasthenia gravis.
- D. Tensilon works by blocking the action of acetylcholine at the myoneural junction.
Correct Answer: A
Rationale: A positive Tensilon test shows increased muscle strength within one minute, confirming myasthenia gravis, as Tensilon enhances acetylcholine activity.
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The nurse is caring for a client diagnosed with a cerebrovascular accident (CVA). Which assessment information should the nurse determine first when placing the client in the assigned room?
- A. Determine if the client has loss of vision in the same half of each visual field.
- B. Find out if the client prefers the bed by the window or by the bathroom.
- C. Request dietary to place the meat at 12:00 on each plate and vegetables at 09:00 and 15:00.
- D. Request a physical therapy consult to assess the client's mobility issues.
Correct Answer: A
Rationale: Homonymous hemianopia (loss of half the visual field) from a CVA affects safety and orientation, requiring immediate assessment. Bed preference, dietary setup, and PT consults are secondary.
A cataract extraction is performed on a client's right eye. What is the priority nursing care immediately postoperative?
- A. Assist her to turn, cough, and deep breathe every two hours.
- B. Keep her NPO for four hours.
- C. Assist her in moving her arms and legs in ROM.
- D. Position client on her right side.
Correct Answer: C
Rationale: Assisting with range of motion prevents complications like stiffness while avoiding strain on the surgical eye.
The client with a retinal detachment has just undergone a gas tamponade repair. Which discharge instruction should the nurse include in the teaching?
- A. The client must lie flat with the face down.
- B. The head of the bed must be elevated 45 degrees.
- C. The client should wear sunglasses when outside.
- D. The client should avoid reading for three (3) weeks.
Correct Answer: A
Rationale: Face-down positioning maintains gas tamponade pressure on the retina, aiding reattachment. Elevation, sunglasses, and reading restrictions are secondary or incorrect.
The nurse is reviewing the new nurse's discharge instructions for the client following outpatient cataract surgery. Which statement should the nurse remove from the discharge instructions?
- A. Avoid lifting, pushing, or pulling objects heavier than 15 pounds.
- B. Clean the eye with a clean tissue; wipe from inner to outer eye.
- C. Cough and deep breathe every 2 to 3 hours while you are awake.
- D. Avoid lying on the side of the affected eye the night after surgery.
Correct Answer: C
Rationale: The client should not cough because this will increase the pressure within the eye and risk for complications. Lifting heavy objects increases pressure on the surgical eye. The surgical eye should be cleaned with a clean tissue from the inner to outer canthus to prevent obstruction of the ducts with drainage. Lying on the side of the surgical eye can increase pressure on the surgical eye.
A client asks the nurse what causes Parkinson's disease. The nurse's correct reply would be that Parkinson's disease is thought to be due to:
- A. a deficiency of dopamine in the brain.
- B. a demyelinating process affecting the central nervous system.
- C. atrophy of the basal ganglia.
- D. insufficient uptake of acetylcholine in the body.
Correct Answer: A
Rationale: Parkinson's disease is caused by a deficiency of dopamine in the brain, leading to motor symptoms.