A newborn girl appears with ambiguous genitalia and a 46,XX karyotype. Labs reveal elevated 17-hydroxyprogesterone. Most likely diagnosis is:
- A. Congenital adrenal hyperplasia
- B. Androgen insensitivity syndrome
- C. Gonadal dysgenesis
- D. 5-alpha reductase deficiency
Correct Answer: A
Rationale: CAH fits XX karyotype and elevated 17-OHP, per AAP (doc p149, Q574).
You may also like to solve these questions
The best growth chart indicator in patients with acute malnutrition is:
- A. Body mass index (BMI)
- B. Body weight
- C. Weight-for-height
- D. Head circumference
Correct Answer: C
Rationale: Weight-for-height best detects acute malnutrition (wasting), per WHO. BMI is less specific in kids, and B-D assess other aspects.
The nurse is explaining to a 17-year-old female the actions to prevent urinary tract infection. The nurse determines the adolescent understands the information when she says a good drink to keep urine acidic is:
- A. Milk
- B. Grape juice
- C. Apple juice
- D. Orange juice
Correct Answer: C
Rationale: Apple juice (C) acidifies urine, deterring UTIs. Milk (A) is neutral, grape (B) less effective, and orange (D) is acidic but less cited. Document: 'Juices such as apple or cranberry help maintain acidity of urine.'
When a parent asks the nurse to describe what is meant by a 'learning disability,' the nurse's most helpful response would be:
- A. It is characterized by inattention, impulsiveness, and hyperactivity'
- B. A child may have difficulty with perception, language, comprehension, or memory'
- C. The child's intellectual ability limits his learning'
- D. The child has difficulty learning because of brain damage'
Correct Answer: B
Rationale: A learning disability (B) involves challenges in perception, language, or comprehension despite normal intelligence. A describes ADHD, C implies low IQ, and D suggests injury, not typical. Document: 'Children with learning disabilities may have… difficulties in perception, language, comprehension.'
A child with a cast should be taught to report
- A. Discomfort
- B. Numbness
- C. Tingling
- D. All of the above
Correct Answer: D
Rationale: All D may indicate circulation issues, per document p28, .
In fetal circulation, the pressure is greatest in the
- A. Left ventricle
- B. Right atrium
- C. Pulmonary artery
- D. Aorta
Correct Answer: B
Rationale: Right atrium B has the highest pressure in fetal circulation due to venous return, per document 3.
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