The MOST common cause of syncope in children is
- A. Wolff-Parkinson-White syndrome
- B. prolonged QT syndrome
- C. atrioventricular block
- D. neurocardiogenic syncope
Correct Answer: D
Rationale: Neurocardiogenic syncope is the most common cause of syncope in children due to autonomic dysfunction.
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For the child with hypoplastic left heart syndrome, which medication may be given to keep the patent ductus arteriosus (PDA) open until surgery can be done?
- A. Prostaglandin E
- B. Indomethicin
- C. Ibuprofen
- D. Digoxin
Correct Answer: A
Rationale: Prostaglandin E is used to keep the PDA open in infants with hypoplastic left heart syndrome, allowing for adequate blood flow until surgical intervention can be performed.
What are THREE associated echo findings for an infant with wide spaced nipples and a webbed neck?
- A. LV systolic dysfunction
- B. Blunted abdominal aortic Doppler
- C. Bicuspid aortic valve
- D. All of the above
Correct Answer: D
Rationale: These are common echo findings that can be associated with congenital syndromes affecting the heart.
The following cardiac lesions are at increased risk for bacterial endocarditis EXCEPT
- A. mitral insufficiency
- B. aortic stenosis
- C. atrial septal defect seccundum
- D. coarctation of the aorta
Correct Answer: C
Rationale: ASD seccundum is generally not considered a high-risk lesion for bacterial endocarditis.
Typical features of Down's syndrome include:
- A. Brachycephaly
- B. Hypotonia
- C. Male infertility
- D. Increased a-fetoprotein in amniotic fluid
Correct Answer: B
Rationale: Hypotonia is a key feature of Down's syndrome, often leading to delayed development and muscle weakness.
The following are examples of acquired heart disease. Select all that apply.
- A. Infective endocarditis
- B. Coarctation of the aorta
- C. Rheumatic fever (RF)
- D. Cardiomyopathy
Correct Answer: C
Rationale: Acquired heart diseases include conditions that develop after birth, such as infective endocarditis, rheumatic fever, cardiomyopathy, and Kawasaki disease. Coarctation of the aorta and transposition of the great vessels are congenital heart defects.
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