ATI RN
Pediatric Musculoskeletal Assessment Questions
Question 1 of 5
The proximal femoral ossification center (in the center of the femoral head) appears between
Correct Answer: B
Rationale: The proximal femoral ossification center typically appears between 4 and 7 months of age, varying slightly by individual.
Question 2 of 5
Polydactyly or duplication of a digit can occur either as a preaxial deformity (involving the thumb) or as a postaxial deformity (involving the small finger) All the following syndromes associated with polydactyly EXCEPT
Correct Answer: C
Rationale: Trisomy 18 is associated with clenched hands and overlapping fingers, not polydactyly.
Question 3 of 5
The two MOST common causative organisms of osteomyelitis in children with sickle cell anemia are
Correct Answer: B
Rationale: In sickle cell anemia, Salmonella spp. and S. aureus are the most common pathogens due to functional asplenia and bone infarction.
Question 4 of 5
Septic arthritis in infants and children has the potential to damage the synovium, adjacent cartilage, and bone causing permanent disability. All the following statements regarding its epidemiology are true EXCEPT
Correct Answer: B
Rationale: Half of all cases occur by 2-3 years, not 5 years, due to higher incidence in younger children.
Question 5 of 5
The MOST common ocular manifestation in Marfan syndrome is
Correct Answer: A
Rationale: Lens dislocation (ectopia lentis) is the most common ocular feature in Marfan syndrome, affecting up to 60% of patients.