Which of the following statements is true regarding alcohol septal ablation?
- A. Indicated when dynamic LV outflow gradient is more than 50 mm Hg at rest
- B. Targeted septal thickness less than 16 mm is a contraindication
- C. Usually preferred over surgical myomectomy
- D. Reduces risk of sudden death
Correct Answer: A
Rationale: Alcohol septal ablation is indicated when the dynamic LV outflow gradient is more than 50 mm Hg at rest.
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At birth, tunica intima of arterial wall contains all of the following, except
- A. Type IV collagen
- B. Laminin
- C. Endothelial cells
- D. Smooth muscle cells
Correct Answer: D
Rationale: Smooth muscle cells are not typically found in the tunica intima at birth.
Which among the following is not a feature of low flow - low gradient severe aortic stenosis with preserved left ventricular function?
- A. Mean trans aortic pressure gradient < 40 mm Hg
- B. Aortic valve area < 1 cm²
- C. Stroke volume > 35 ml/m²
- D. Left ventricular ejection fraction > 50%
Correct Answer: C
Rationale: Stroke volume is typically reduced, not increased, in low flow - low gradient severe aortic stenosis.
Toddler's diarrhoea is characterised by:
- A. Onset over 18 months
- B. Failure to thrive
- C. Excessive consumption of cow's milk
- D. Undigested food particles in the stool
Correct Answer: D
Rationale: The correct answer is D because undigested food particles in the stool are a hallmark of toddler's diarrhoea. The other options (a, b, c, e) are less specific.
A 6-month-old presents with tachycardia, tachypnea, and poor feeding for 3 months. Physical examination reveals a continuous machinery murmur and a wide pulse pressure with a prominent apical impulse. The most likely diagnosis is
- A. pulmonic stenosis
- B. aortic stenosis
- C. ventricular septal defect
- D. patent ductus arteriosus
Correct Answer: D
Rationale: Patent ductus arteriosus causes a continuous machinery murmur and wide pulse pressure.
A nurse assesses a client who is scheduled for a cardiac catheterization. Which assessment should the nurse complete before this procedure?
- A. Client’s level of anxiety
- B. Ability to turn self in bed
- C. Cardiac rhythm and heart rate
- D. Allergies to iodine-based agents
Correct Answer: D
Rationale: Assessing for allergies to iodine-based agents is critical before cardiac catheterization, as contrast dye used during the procedure may cause an allergic reaction.
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