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.
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The following drugs are contraindicated in renal failure:
- A. Nitrofurantoin
- B. Carbamazepine
- C. Salbutamol
- D. Metolazone
Correct Answer: A
Rationale: Nitrofurantoin is contraindicated in renal failure due to the risk of accumulation and subsequent toxicity, as the kidneys are unable to excrete the drug effectively.
Which is the incorrect statement regarding effect of dobutamine infusion in patients with heart failure
- A. Left ventricular end diastolic pressure decreases
- B. Mean arterial pressure decreases slightly due to interplay of actions on alpha 1 and alpha 2 receptors
- C. Left ventricular end systolic volume decreases
- D. There is increased myocardial oxygen demand
Correct Answer: B
Rationale: Mean arterial pressure typically increases, not decreases, with dobutamine infusion due to its inotropic effects.
Which of the following skills would be expected of a 7-month-old infant but not of a 5-month-old infant?
- A. Crawls
- B. Smiles socially
- C. Controls bowel and bladder
- D. Sits unsupported
Correct Answer: D
Rationale: A 7-month-old can typically sit unsupported, while a 5-month-old cannot. Crawling and social smiling develop earlier, and bowel control is not expected at this age.
Which instruction should the nurse include in the discharge teaching for a client who has gastroesophageal reflux?
- A. Teach the client to elevate the head of the bed on blocks
- B. Remind the client to avoid high-fiber foods
- C. Encourage the client to lie down and rest after meals
- D. Instruct the client to use antacids only as a last resort
Correct Answer: A
Rationale: Elevating the head of the bed on blocks helps reduce reflux of stomach acid into the esophagus, improving symptoms of gastroesophageal reflux disease.
Which of the following has the highest proportion of etiology of congenital malformations?
- A. Maternal infections
- B. Maternal illness
- C. Environmental agents
- D. Monogenic inheritance
Correct Answer: D
Rationale: Monogenic inheritance accounts for the highest proportion of congenital malformations.