Nokea
Recognised features in Marfan's syndrome include:
- A. Mutation in fibrillin gene
- B. Mitral valve prolapse
- C. Cognitive impairment
- D. Myopia
Correct Answer: B
Rationale: Mitral valve prolapse
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Of the following, the cardiac lesion resulting in increased volume load is
- A. valvular pulmonic stenosis
- B. patent ductus arteriosus
- C. valvular aortic stenosis
- D. mitral stenosis
Correct Answer: B
Rationale: Patent ductus arteriosus leads to increased volume load on the left side of the heart.
What is one reason why patients with CHD are more likely to have rejection post-transplant than those with cardiomyopathy?
- A. Sensitized recipients with panel reactive antibody (PRA)
- B. Absence of systemic disease
- C. History of good compliance
- D. None of the above
Correct Answer: A
Rationale: Patients with congenital heart disease (CHD) are often sensitized due to prior surgeries and blood transfusions, leading to a higher risk of rejection post-transplant.
Recognised associations of Addison's disease include:
- A. Neurofibromatosis
- B. Phaeochromocytoma
- C. IDDM
- D. Nephrogenic diabetes insipidus
Correct Answer: C
Rationale: The correct answer is C because IDDM (insulin-dependent diabetes mellitus) is a recognized association of Addison's disease. The other options (a, b, d, e) are less commonly associated.
Which defect results in increased pulmonary blood flow?
- A. Pulmonic stenosis
- B. Tricuspid atresia
- C. Atrial septal defect
- D. Transposition of the great arteries
Correct Answer: C
Rationale: Atrial septal defect results in increased pulmonary blood flow. Blood flows from the left atrium (higher pressure) into the right atrium (lower pressure) and then to the lungs via the pulmonary artery. Pulmonic stenosis is an obstruction to blood flowing from the ventricles. Tricuspid atresia results in decreased pulmonary blood flow. Transposition of the great arteries results in mixed blood flow.
During play, a toddler with a history of tetralogy of Fallot (TOF) might assume which position?
- A. Sitting
- B. Supine
- C. Squatting
- D. Standing
Correct Answer: C
Rationale: Squatting naturally increases SVR by occluding venous return from the lower extremities, thereby increasing pulmonary blood flow.