Nokea
Phenytoin is used for treatment of
- A. supraventricular tachycardia
- B. digitalis intoxication
- C. atrial fibrillation
- D. ventricular tachycardia
Correct Answer: B
Rationale: Phenytoin is used specifically for digitalis-induced arrhythmias.
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Regarding coarctation of aorta
- A. Associated with Turner's syndrome
- B. Commonest is preductal type
- C. Radio femoral delay is a feature
- D. Systolic BP in lower limb is higher than in upper limb
Correct Answer: C
Rationale: Radio-femoral delay is a characteristic feature of coarctation of the aorta due to the obstruction in blood flow.
The nurse reviews the laboratory results of a client during an annual physical examination and identifies a positive guaiac test of stool. Which additional serum laboratory test result should the nurse review?
- A. Glucose
- B. Platelet count
- C. White blood cell count
- D. Amylase
Correct Answer: B
Rationale: A positive guaiac test indicates gastrointestinal bleeding. A platelet count is essential to assess for thrombocytopenia, which could contribute to bleeding.
A heart transplant may be indicated for a child with severe heart failure and:
- A. Patent ductus arteriosus (PDA)
- B. Ventricular septal defect (VSD)
- C. Hypoplastic left heart syndrome
- D. Pulmonic stenosis (PS)
Correct Answer: C
Rationale: Hypoplastic left heart syndrome is treated by procedures such as the Norwood procedure or heart transplant.
In Wilson's disease:
- A. There is an association with high caeruloplasmin levels
- B. Hepatic copper deposition is pathognomonic
- C. There is increased urinary excretion of copper
- D. There are copper deposits on the cornea
Correct Answer: D
Rationale: Copper deposits on the cornea (Kayser-Fleischer rings) are a hallmark of Wilson's disease, a genetic disorder leading to copper accumulation in tissues.
The following are strongly associated with Kawasaki disease EXCEPT
- A. duration of fever of >16 days
- B. first-degree heart block
- C. male gender
- D. age of <1 year
Correct Answer: B
Rationale: First-degree heart block is less commonly associated with Kawasaki disease compared to other factors.