ATI RN
NCLEX Pediatric Musculoskeletal Questions Questions
Question 1 of 5
The time for the kidneys to complete appropriate metabolic compensation for a primary respiratory process is
Correct Answer: D
Rationale: Kidneys take 48-72 hours to fully compensate for respiratory acid-base changes via bicarbonate regulation.
Question 2 of 5
The characteristic features of Duchenne muscular dystrophy (DMD) are progressive weakness, intellectual impairment, hypertrophy of the calves, and proliferation of connective tissue in muscle. Of the following, the BEST initial test for diagnosis is
Correct Answer: D
Rationale: Serum creatine kinase (CK) is the best initial test for DMD due to its significant elevation (10-100 times normal) early in the disease, reflecting muscle damage.
Question 3 of 5
In spinal muscular atrophy (SMA) type 1, all the following are spared EXCEPT
Correct Answer: B
Rationale: In SMA type 1 (Werdnig-Hoffmann), the diaphragm is often affected, leading to respiratory failure, while the heart, intelligence, and sphincters are typically spared.
Question 4 of 5
The best diagnostic test in Guillain-Barré syndrome (GBS) is
Correct Answer: A
Rationale: CSF study showing albuminocytologic dissociation (high protein, normal cell count) is the best diagnostic test for GBS.
Question 5 of 5
The earliest and MOST constant sign of myasthenia gravis is
Correct Answer: A
Rationale: Ptosis is the earliest and most constant sign of myasthenia gravis, reflecting ocular muscle involvement.