ATI RN
Pediatric Musculoskeletal Questions
Question 1 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 2 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 3 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.
Question 4 of 5
Infants infested with scabies have diffuse erythema, scaling, and pinpoint papules. Pustules, vesicles, and nodules are much more common in infants and may be more diffusely distributed. The face and scalp usually are spared in adults and older children, but these areas are usually involved in infants.
Correct Answer: D
Rationale: In infants with scabies, the presentation includes diffuse erythema and involvement of the face and scalp, unlike in older patients where these areas are typically spared.
Question 5 of 5
The MOST important and severe complication of DDH is
Correct Answer: D
Rationale: Iatrogenic avascular necrosis, often from treatment, is the most severe complication due to its impact on hip function.