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.
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A child with rheumatic fever is being admitted to the pediatric floor. On admission assessment, the nurse should ask the parents which question to elicit assessment information specific to the development of rheumatic fever?
- A. “Has your child complained of back pain?â€
- B. “Has your child complained of headaches?â€
- C. “Has your child had any nausea or vomiting?â€
- D. “Did your child have a sore throat or fever within the last 2 months?â€
Correct Answer: D
Rationale: A history of sore throat or fever within the last 2 months is significant as rheumatic fever often follows a streptococcal infection such as strep throat.
The nurse is assessing clients in an outpatient diabetic clinic. Which entry provides the best evidence that the client is adhering to the prescribed diabetic regimen?
- A. Hemoglobin A1C of 6.2%
- B. Fasting blood glucose of 130 mg/dL
- C. Positive urine ketones
- D. Self-reported daily blood glucose monitoring
Correct Answer: A
Rationale: A hemoglobin A1C of 6.2% indicates good glycemic control, reflecting adherence to the diabetic regimen.
Which finding would alert a nurse that a hospitalized 6-year-old child is at risk for a severe asthma exacerbation?
- A. Oxygen saturation of 95%
- B. Mild work of breathing
- C. Absence of intercostals or substernal retractions
- D. History of steroid-dependent asthma
Correct Answer: D
Rationale: A history of steroid-dependent asthma indicates severe asthma, increasing the risk of a life-threatening exacerbation.
An 8-year-old from the former Soviet Union is brought to your office because of a heart murmur and dusty blue skin. He has marked clubbing of his fingers and toes, and his hematocrit is 70%. He has a grade 4/6 holosystolic murmur. His chest x-ray reveals a normal pulmonary blood flow as well as a right-sided aortic arch. What is the likely diagnosis?
- A. total anomalous venous return
- B. tetralogy of Fallot
- C. Eisenmenger syndrome
- D. transposition of the great vessels
Correct Answer: C
Rationale: Eisenmenger syndrome involves reversal of shunt direction due to long-standing pulmonary hypertension, explaining the cyanosis and clubbing.
The clinical features of subaortic membrane stenosis can include all, except
- A. Ejection systolic murmur
- B. Ejection click
- C. End-diastolic murmur of aortic regurgitation
- D. Low pulse volume
Correct Answer: B
Rationale: An ejection click is not typically a feature of subaortic membrane stenosis.
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