The most common cardiac dysrhythmia in pediatrics is:
- A. Ventricular tachycardia
- B. Sinus bradycardia
- C. Supraventricular tachycardia
- D. First-degree heart block
Correct Answer: C
Rationale: SVT is the most common dysrhythmia in children.
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22q11 deletion is commonly associated with all except
- A. Tetralogy of Fallot
- B. Truncus arteriosus
- C. Interrupted aortic arch
- D. D-Transposition of great arteries
Correct Answer: D
Rationale: 22q11 deletion is not commonly associated with D-Transposition of great arteries.
Generalised absence seizures:
- A. Are usually atypical in type
- B. CT scan shows abnormalities in around 25-30% of cases
- C. Can be diagnosed in the absence of a typical EEG pattern with great certainty
- D. Are associated with other generalised seizures in most cases
Correct Answer: D
Rationale: Generalised absence seizures are often associated with other types of generalised seizures, such as tonic-clonic seizures.
Toxoplasma gondii infection in humans causes:
- A. Oral ulcers
- B. Cervical lymphadenopathy
- C. Microcephaly
- D. Chorioretinitis
Correct Answer: D
Rationale: Chorioretinitis is a hallmark of congenital toxoplasmosis, leading to vision impairment.
The differential diagnosis of the patient includes all of the following EXCEPT
- A. rheumatic fever
- B. SLE
- C. chronic atrial fibrillation
- D. postmeningococcal immune complexes
Correct Answer: C
Rationale: Chronic atrial fibrillation is unlikely in an 8-year-old with acute onset symptoms.
A 5-year-old child who had a repair for transposition of the great arteries shortly after birth is growing normally and has been asymptomatic since the surgery. The primary care nurse practitioner notes mild shortness of breath with exertion and dizziness. What will the nurse practitioner do?
- A. Order an echocardiogram and chest radiograph.
- B. Perform pulmonary function testing.
- C. Reassure the parent that these symptoms are common.
- D. Refer the child to the cardiologist immediately.
Correct Answer: D
Rationale: Children with a history of transposition of the great arteries (d-TGA) who have a history of palpitations, syncope, or shortness of breath should be referred to a cardiologist.