Nokea
The client is being evaluated to rule out myasthenia gravis and being administered the Tensilon (edrophonium chloride) test. Which response to the test indicates the client has myasthenia gravis?
- A. The client has no apparent change in the assessment data.
- B. There is increased amplitude of electrical stimulation in the muscle.
- C. The circulating acetylcholine receptor antibodies are decreased.
- D. The client shows a marked improvement of muscle strength.
Correct Answer: D
Rationale: The Tensilon test improves muscle strength in myasthenia gravis by inhibiting acetylcholinesterase. No change, electrical stimulation, or antibody levels are not diagnostic.
You may also like to solve these questions
Which intervention is an important psychosocial consideration for the client diagnosed with AIDS?
- A. Perform a thorough head-to-toe assessment.
- B. Maintain the client's ideal body weight.
- C. Complete an advance directive.
- D. Increase the client's activity tolerance.
Correct Answer: C
Rationale: Completing an advance directive addresses end-of-life wishes, a key psychosocial need in AIDS. Assessment, weight, and activity are physiological.
The client diagnosed with Guillain-Barré syndrome is having difficulty breathing and is placed on a ventilator. Which situation warrants immediate intervention by the nurse?
- A. The ventilator rate is set at 14 breaths per minute.
- B. A manual resuscitation bag is at the client's bedside.
- C. The client's pulse oximeter reading is 85%.
- D. The ABG results are pH 7.4, PaO2 88, PaCO2 35, and HCO3 24.
Correct Answer: C
Rationale: A pulse oximeter reading of 85% indicates hypoxemia, requiring immediate intervention. Ventilator rate, resuscitation bag, and normal ABGs are appropriate.
The primary nurse is administering medications to the assigned clients. Which client situation requires immediate intervention by the charge nurse?
- A. The client with congestive heart failure with an apical pulse of 64 who received 0.125 mg digoxin, a cardiac glycoside.
- B. The client with essential hypertension who received a beta blocker and has a blood pressure of 114/80.
- C. The client with myasthenia gravis who received the anticholinesterase medication 30 minutes late.
- D. The client with AIDS who received trimethoprim-sulfamethoxazole, an antibiotic, and has a CD4 cell count of less than 200.
Correct Answer: C
Rationale: A 30-minute delay in anticholinesterase for myasthenia gravis risks muscle weakness exacerbation, requiring intervention. Digoxin, beta blocker, and antibiotic administration are appropriate.
The client who has engaged in needle-sharing activities has developed a flu-like illness. An HIV antibody test is negative. Which statement best describes the scientific rationale for this finding?
- A. The client is fortunate not to have contracted HIV from an infected needle.
- B. The client must be repeatedly exposed to HIV before becoming infected.
- C. The client may be in the primary infection phase of an HIV infection.
- D. The antibody test is negative because the client has a different flu virus.
Correct Answer: C
Rationale: A negative antibody test during flu-like symptoms may indicate the primary HIV infection phase, before seroconversion. Single exposure can infect, and flu viruses are unrelated.
The client newly diagnosed with multiple sclerosis (MS) states, 'I don't understand how I got multiple sclerosis. Is it genetic?' On which statement should the nurse base the response?
- A. Genetics may play a role in susceptibility to MS, but the disease may be caused by a virus.
- B. There is no evidence suggesting there is any chromosomal involvement in developing MS.
- C. Multiple sclerosis is caused by a recessive gene, so both parents had to have the gene for the client to get MS.
- D. Multiple sclerosis is caused by an autosomal dominant gene on the Y chromosome, so only fathers can pass it on.
Correct Answer: A
Rationale: MS has a genetic susceptibility component (e.g., HLA genes), but environmental factors like viral infections may trigger it. There is chromosomal involvement, MS is not purely recessive or dominant, and it is not Y-linked.