ATI RN
Pediatric Musculoskeletal Disorders Questions
Question 1 of 5
An adolescent athlete complains of an insidious onset of low back pain persisting over 6 weeks. The pain tends to worsen with activity and with extension of the back and improves with rest, the pain radiated to the buttocks. Of the following, the MOST likely cause is
Correct Answer: D
Rationale: Spondylolisthesis fits the chronic, activity-related back pain with radiation and extension aggravation in adolescents.
Question 2 of 5
Which is not true of congenital neuromuscular disorders?
Correct Answer: C
Rationale: Congenital neuromuscular disorders vary; EMG helps but isn't always definitive (genetic testing often is), making C false. Most are hereditary, some are nonprogressive, and hypotonia is common.
Question 3 of 5
A one-day-old newborn born to a myasthenic mother has generalized hypotonia and weakness. What is the prognosis?
Correct Answer: C
Rationale: Neonatal myasthenia (transient due to maternal antibodies) resolves within weeks and carries no increased risk of permanent myasthenia gravis.
Question 4 of 5
Pediatricians must understand normal limb development so as to recognize pathologic conditions during routine and targeted exams. Of the following, the TRUE statement is
Correct Answer: D
Rationale: Normal tibiofemoral alignment at birth is varus, not valgus (A is false); physiologic varus peaks earlier (B is incorrect); and a neutral to slight valgus is typical by 5-8 years (C is wrong). Persistence of varus beyond 2 years may indicate pathology like Blount's disease.
Question 5 of 5
Legg-Calvé-Perthes disease is a hip disorder of unknown etiology that results from temporary interruption of the blood supply to the proximal femoral epiphysis, leading to osteonecrosis and femoral head deformity. Of the following, the MOST common presenting symptom is
Correct Answer: A
Rationale: A limp is the most common initial symptom in Legg-Calvé-Perthes disease, often insidious in onset.