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Most common cause of Cushing syndrome in children is:
- A. Adrenal tumor
- B. Pituitary adenoma
- C. Exogenous steroids
- D. Ectopic ACTH syndrome
Correct Answer: C
Rationale: Exogenous steroids are the most common cause of Cushing syndrome in children, per AAP (doc p150, Q590).
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Infants in whom cephalhematomas develop are at increased risk for
- A. Infection
- B. Jaundice
- C. Seizures
- D. Fractures
Correct Answer: B
Rationale: Jaundice B is a risk due to blood breakdown in cephalhematomas, per document p5, 1.
A child with diabetes should be taught to recognize
- A. Shakiness
- B. Sweating
- C. Weakness
- D. All of the above
Correct Answer: D
Rationale: All D are hypoglycemia signs, per document p60, 9.
A 19-year-old pregnant mother likes all-night dance parties. She took methylenedioxymetamphetamine (MDMA 'X', Ecstasy) routinely before and during pregnancy. The most likely fetal defect is:
- A. Pulmonary
- B. Gastrointestinal
- C. CNS
- D. Cardiac
Correct Answer: D
Rationale: MDMA use in pregnancy is linked to cardiac defects , like septal defects, per studies (Teratology). A-C, E are less specific.
A 6-month-old infant presents with wheezing and retractions. Chest x-ray shows hyperinflation. Most likely diagnosis is:
- A. Pneumonia
- B. Bronchiolitis
- C. Cystic fibrosis
- D. Asthma
Correct Answer: B
Rationale: Bronchiolitis features wheezing and hyperinflation, per AAP. A, C-E differ.
Vitamin B1 deficiency causes
- A. Beriberi
- B. Mumps
- C. Pellagra
- D. Scurvy
Correct Answer: A
Rationale: Beriberi A results from B1 deficiency, per document p14, 8.