Nurse Betina should begin screening for lead poisoning when a child reaches which age?
- A. 6 months
- B. 12 months
- C. 18 months
- D. 24 months
Correct Answer: B
Rationale: Screening for lead poisoning typically begins at 12 months, as children at this age are more likely to be exposed to lead through crawling and hand-to-mouth activities.
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Patients with a small PDA have the following criteria EXCEPT
- A. asymptomatic risk for endocarditis
- B. normal peripheral pulses
- C. normal pulmonary artery pressure
- D. normal life expectancy
Correct Answer: A
Rationale: Small PDAs typically have a low risk for endocarditis.
The following foramina are found in the brain:
- A. Foramen of Monro
- B. Foramen ovale
- C. Foramen of Magendie
- D. Foramen transversalis
Correct Answer: A
Rationale: Foramen of Monro: The foramen of Monro connects the lateral ventricles to the third ventricle and plays a key role in the circulation of cerebrospinal fluid (CSF).
Rocker bottom feet and polyvalvular dysplasia are characteristic of which of the following?
- A. Trisomy 19
- B. Trisomy 18
- C. Trisomy 13
- D. Trisomy 21
Correct Answer: B
Rationale: Rocker bottom feet and polyvalvular dysplasia are classic signs of trisomy 18 (Edwards syndrome), a condition that involves multiple congenital anomalies.
One of the following is a characteristic physical finding in patients with an ASD
- A. a right precordial bulge
- B. a fixed splitting of the second heart sound
- C. a systolic ejection heart murmur
- D. a short, mild left mid-diastolic murmur
Correct Answer: B
Rationale: Fixed splitting of the second heart sound is a hallmark of an atrial septal defect.
What are FIVE indications for pacemaker insertion in a child with congenital heart block?
- A. Symptomatic bradycardia
- B. Ventricular dysfunction or low cardiac output
- C. Wide QRS escape
- D. Complex ventricular ectopy
Correct Answer: A
Rationale: Symptomatic bradycardia is the most common indication for pacemaker insertion in children with congenital heart block, to ensure adequate heart rate and perfusion.