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ATI RN · Obstetrics and Pediatrics · Pediatric Musculoskeletal

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 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.

A. Pustules are rare in infants
B. Face is spared in infants
C. Nodules are uncommon
D. Diffuse erythema and face involvement are common in infants

Expert Explanatory Rationale

Correct Answer: Diffuse erythema and face involvement are common in infants

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

A. Myasthenia gravis
B. Guillain-Barré syndrome
C. Werdnig-Hoffmann disease
D. Duchenne muscular dystrophy

Expert Explanatory Rationale

Correct Answer: Duchenne muscular dystrophy

Question 3 of 5

In treatment of hyperkalemia, which measure removes potassium from the body?

A. sodium bicarbonate administration (IV)
B. loop diuretic (IV or PO)
C. insulin and glucose (IV)
D. β-Agonist (albuterol via nebulizer)

Expert Explanatory Rationale

Correct Answer: loop diuretic (IV or PO)

Question 4 of 5

The Barlow test is used to diagnose which condition?

A. Patellar subluxation
B. Legg-Calvé-Perthes disease
C. Developmental dysplasia of the hip
D. Slipped capital femoral epiphysis

Expert Explanatory Rationale

Correct Answer: Developmental dysplasia of the hip

Question 5 of 5

A 16-year-old athlete male presented with burning pain, weakness, and numbness of right upper extremity after lateral flexion of the neck away from the involved upper extremity, the symptoms resolve after 10 minutes. Of the following, the MOST likely cause is

A. brachial plexopathy
B. proximal humeral epiphysiolysis
C. overuse injury
D. glenohumeral dislocation

Expert Explanatory Rationale

Correct Answer: brachial plexopathy

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