Nokea
Biological causes of mild mental retardation includes all of the following except:
- A. Excessive fetal movements
- B. Maternal drug use
- C. Perinatal insults
- D. Sex chromosomal abnormalities
Correct Answer: A
Rationale: Excessive fetal movements aren’t a recognized cause of mild mental retardation; they’re nonspecific. B-E are established contributors (CDC).
You may also like to solve these questions
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 tachypnea. Chest x-ray shows perihilar infiltrates. Most likely diagnosis is:
- A. Pneumonia
- B. Bronchiolitis
- C. Cystic fibrosis
- D. Asthma
Correct Answer: B
Rationale: Bronchiolitis features wheezing and perihilar infiltrates, per AAP. A, C-E differ.
A child is diagnosed with hypoalbuminemia. Her total serum calcium level is normal. Most likely associated finding that may be missed is:
- A. Hypocalcemia
- B. Hypercalcuria
- C. Hypomagnesemia
- D. Hypercalcemia
Correct Answer: D
Rationale: Hypoalbuminemia lowers bound calcium; a normal total calcium suggests hypercalcemia in ionized form, often missed (UpToDate). A-C, E don’t fit.
A 2-year-old boy presents with fever and a vesicular rash in the mouth. Most likely diagnosis is:
- A. Measles
- B. Herpangina
- C. Hand-foot-mouth disease
- D. Chickenpox
Correct Answer: C
Rationale: HFMD features fever and oral vesicles, per CDC. A, B, D, E differ in distribution.
A child with sickle cell disease should avoid
- A. Cold environments
- B. Dehydration
- C. Stress
- D. All of the above
Correct Answer: D
Rationale: All D trigger crises, per document p53, .