Nokea
Elevated levels of CPK are seen in:
- A. Duchenne muscular dystrophy
- B. Dermatomyositis
- C. Spinal muscular atrophy
- D. Malignant hyperthermia
Correct Answer: A
Rationale: Duchenne muscular dystrophy: Elevated creatine phosphokinase (CPK) levels are a hallmark of Duchenne muscular dystrophy due to muscle damage and degeneration.
You may also like to solve these questions
What is the age-predicted maximum heart rate in a 60-year old man on beta blockers?
- A. 122
- B. 133
- C. 155
- D. 166
Correct Answer: A
Rationale: Beta blockers reduce the maximum heart rate. The age-predicted maximum heart rate for a 60-year-old on beta blockers is approximately 122 bpm.
A client with Addison's disease started taking hydrocortisone in a divided daily dose last week. It is most important for the nurse to monitor which serum laboratory value?
- A. Osmolarity
- B. Glucose
- C. Albumin
- D. Platelets
Correct Answer: B
Rationale: Hydrocortisone can affect blood glucose levels, making it important to monitor for hyperglycemia.
A client with draining skin lesions of the lower extremity is admitted with possible Methicillin-Resistant Staphylococcus Aureus (MRSA). Which nursing interventions should the nurse include in the plan of care?
- A. Institute contact precautions for staff and visitors.
- B. Send wound drainage for culture and sensitivity.
- C. Monitor the client's white blood cell count.
- D. Administer broad-spectrum antibiotics before obtaining cultures.
Correct Answer: B
Rationale: MRSA requires contact precautions to prevent spread, culture and sensitivity testing is necessary to identify the specific organism, and WBC count should be monitored to assess for infection.
Anthracycline (doxorubicin) on rare occasion causes acute inflammatory myocardial injury, but more classically results in dilated cardiomyopathy (DCM) in up to 30% of patients with a cumulative dose of doxorubicin exceeding
- A. 250 mg/m²
- B. 350 mg/m²
- C. 450 mg/m²
- D. 550 mg/m²
Correct Answer: D
Rationale: A cumulative dose of doxorubicin exceeding 550 mg/m² is associated with increased risk of dilated cardiomyopathy.
Histochemical staining used for diagnosing Hirschsprung's disease is
- A. Acetyl choline esterase
- B. Dopamine
- C. Glutamate
- D. Chromogranin and synaptophysin
Correct Answer: A
Rationale: Acetylcholine esterase staining is used to diagnose Hirschsprung's disease by identifying the absence of ganglion cells.