Nokea
A patient with no structural heart disease: a wide QRS tachycardia of RBBB morphology at a rate of 160 bpm, QRS axis of (-) 40 degrees and AV dissociation was recorded during palpitation. What is the likely diagnosis?
- A. RV outflow ventricular tachycardia
- B. Posterior fascicular VT
- C. Anterior fascicular VT
- D. Antidromic AVRT
Correct Answer: A
Rationale: RV outflow ventricular tachycardia is the likely diagnosis given the RBBB morphology and QRS axis.
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David, age 15 months, is recovering from surgery to remove Wilms’ tumor. Which findings best indicates that the child is free from pain?
- A. Decreased appetite
- B. Increased heart rate
- C. Decreased urine output
- D. Increased interest in play
Correct Answer: D
Rationale: Increased interest in play is a positive sign that the child is not experiencing significant pain and is recovering well.
Common presenting features of myotonic dystrophy are:
- A. Floppy infant
- B. Corneal opacities
- C. Frontal baldness
- D. Macro-orchidism
Correct Answer: D
Rationale: Macro-orchidism: Myotonic dystrophy is characterized by muscle weakness and myotonia. Macro-orchidism (enlarged testes) is a distinctive feature, especially in male patients.
Features of congenital rubella syndrome include:
- A. Intrauterine growth retardation
- B. Hepatomegaly
- C. Thrombocytopenia
- D. Polydactyly
Correct Answer: A
Rationale: Intrauterine growth retardation is a classic feature of congenital rubella syndrome due to the teratogenic effects of the virus.
The MOST common cause of death from associated cardiac lesions without heart syndrome in the first month of life is
- A. d-Transposition
- B. hypoplastic left heart syndrome
- C. pulmonary atresia
- D. truncus arteriosus
Correct Answer: A
Rationale: d-Transposition of the great arteries is a common cause of death in the first month due to mixing of oxygenated and deoxygenated blood.
Which among the following is a systolic event?
- A. E wave
- B. L wave
- C. A wave
- D. S' wave
Correct Answer: D
Rationale: S' wave is a systolic event observed in echocardiography.