ATI RN
Pediatric Musculoskeletal Questions
Question 1 of 5
Muscle denervation is any loss of nerve supply regardless of the cause. Of the following, the MOST specific clinical sign of denervation is
Correct Answer: D
Rationale: Fasciculation is the most specific sign of denervation, reflecting spontaneous motor unit activity due to nerve loss.
Question 2 of 5
The Creatine kinase (CK) which is found in only 3 organs and may be separated into corresponding isozymes: MM for skeletal muscle, MB for cardiac muscle, and BB for brain. Of the following, the CK level is characteristically elevated in
Correct Answer: D
Rationale: CK is characteristically elevated in Duchenne muscular dystrophy due to extensive muscle breakdown.
Question 3 of 5
Treatment of iron deficiency anemia includes
Correct Answer: D
Rationale: The text outlines a full treatment plan, with D (continuing oral treatment for 5 months) being a critical component of complete therapy.
Question 4 of 5
Rapid correction of hyponatremia (>12 mEq/L/24 hr) should be avoided because of the remote risk of
Correct Answer: A
Rationale: Rapid correction of hyponatremia risks central pontine myelinolysis, a known complication supported by medical literature.
Question 5 of 5
In treatment of hyperkalemia, which measure removes potassium from the body?
Correct Answer: B
Rationale: Loop diuretics (e.g., furosemide) remove potassium via urine, unlike the others which shift or stabilize it temporarily.