Regarding cystic fibrosis:
- A. It is inherited as autosomal recessive
- B. There is increased risk of bronchial carcinoma in late adulthood
- C. Biliary cirrhosis is a recognised feature
- D. In neonates, intestinal obstruction may be the first presentation
Correct Answer: A
Rationale: Cystic fibrosis is an autosomal recessive disorder caused by mutations in the CFTR gene.
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The following cranial nerves carry pre-ganglionic parasympathetic nerves:
- A. Oculomotor nerve
- B. Trigeminal nerve
- C. Facial nerve
- D. Vagus nerve
Correct Answer: D
Rationale: The vagus nerve carries parasympathetic fibers. The oculomotor, trigeminal, and facial nerves do not.
After the nurse provides dietary restrictions to the parents of a child with celiac disease, which statement by the parents indicates effective teaching?
- A. “Well follow these instructions until our child’s symptoms disappear.â€
- B. “Our child must maintain these dietary restrictions until adulthood.â€
- C. “Our child must maintain these dietary restrictions lifelong.â€
- D. “We’ll follow these instructions until our child has completely grown and developed.â€
Correct Answer: C
Rationale: Celiac disease requires lifelong adherence to a gluten-free diet to prevent symptoms and complications.
Ventricular tachycardia (VT) is defined as at least 3 premature ventricular contractions PVCs at >120 beats/min. Hemodynamically unstable patients with VT should be immediately treated with
- A. catheter ablation
- B. ICD implantation
- C. DC cardioversion
- D. amiodarone
Correct Answer: C
Rationale: DC cardioversion is the immediate treatment for hemodynamically unstable VT.
The following statements regarding retinoblastoma are correct:
- A. It is usually fatal even if diagnosis is made early
- B. The tumour is heritable
- C. They may occur bilaterally
- D. The finding of leucorrhoea suggests the diagnosis
Correct Answer: B
Rationale: Retinoblastoma is heritable and can occur bilaterally. Early diagnosis improves prognosis, and leucorrhoea is not associated with retinoblastoma.
The predominant manifestations of primary pulmonary hypertension include the following EXCEPT
- A. exercise intolerance
- B. precordial chest pain
- C. syncope
- D. low arterial oxygen saturation
Correct Answer: B
Rationale: Precordial chest pain is not a typical manifestation of primary pulmonary hypertension.