ATI RN
Pediatric Musculoskeletal Disorders NCLEX Questions Questions
Question 1 of 5
Which is not associated with constant muscle weakness?
Correct Answer: D
Rationale: All can cause weakness: hypothyroidism (myopathy), hyperparathyroidism (proximal weakness), corticosteroids (steroid myopathy), hyperaldosteronism (hypokalemia-related). Assuming intent, all are true, so E (moved to D) is least specific.
Question 2 of 5
Normal full-term newborns can have up to 20-30 degree hip and knee flexion contractures, these contractures tend to resolve by
Correct Answer: B
Rationale: In full-term newborns, mild hip and knee flexion contractures are normal due to in utero positioning and typically resolve by 4-6 months as the infant begins to move and stretch the joints.
Question 3 of 5
A rocker-bottom foot describes
Correct Answer: A
Rationale: A rocker-bottom foot is characteristic of congenital vertical talus, where the foot has a convex sole due to a fixed dorsiflexion of the talus.
Question 4 of 5
A school age child presented with a mass behind the knee. Physical examination reveals a firm mass in the popliteal fossa, medially located and distal to the popliteal crease. The mass is most prominent when the knee is extended. Knee radiographs are normal. Of the following, the MOST likely diagnosis is
Correct Answer: C
Rationale: A popliteal cyst (Baker's cyst) is a common benign condition in children, presenting as a firm mass in the popliteal fossa, more prominent on knee extension, with normal radiographs.
Question 5 of 5
There is marked geographic and racial variation in the incidence of developmental dysplasia of the hip (DDH). All the following are true EXCEPT
Correct Answer: D
Rationale: DDH incidence varies widely, with higher rates in certain populations (e.g., Manitoba), but it is not 0% in African newborns; it is lower but still occurs.