A 10yearold boy appears with short stature and del

ATI LPN

ATI LPN Test Bank

A 10-year-old boy appears with short stature and delayed puberty. Labs reveal low IGF-1 and normal GH after stimulation. Most likely diagnosis is:

A. Growth hormone deficiency B. Hypothyroidism C. Turner syndrome D. Constitutional delay

Correct Answer: A

Rationale: Growth hormone deficiency fits short stature and low IGF-1, per AAP (doc p151, Q603).

A 6-year-old boy presents with fatigue and pallor. Labs show hemoglobin of 7 g/dL and reticulocytosis. Most likely diagnosis is:

A. Iron deficiency anemia B. Sickle cell disease C. Hemolytic anemia D. Thalassemia

Correct Answer: C

Rationale: Hemolytic anemia fits pallor and reticulocytosis, per ASH. A-D differ in labs.

A 2-year-old boy presents with fever and vesicles in the mouth. Most likely diagnosis is:

A. Herpangina B. Hand-foot-mouth disease C. Chickenpox D. Measles

Correct Answer: B

Rationale: HFMD features oral vesicles, per CDC. A, C-E differ.

A 5-year-old boy presents with hematuria and proteinuria. Labs show low C3. Most likely diagnosis is:

A. Nephrotic syndrome B. Poststreptococcal glomerulonephritis C. IgA nephropathy D. Lupus nephritis

Correct Answer: B

Rationale: PSGN features hematuria and low C3, per AAP. A, C-E differ.

A 2-year-old boy presents with a limp and knee pain. Labs show elevated ESR. Most likely diagnosis is:

A. Septic arthritis B. Transient synovitis C. Juvenile idiopathic arthritis D. Osteomyelitis

Correct Answer: C

Rationale: JIA features limp and elevated ESR, per ACR. A, B, D, E differ.

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