Nokea
Peak expiratory flow rate:
- A. Is a sensitive parameter to assess improvement to therapy in acute bronchial asthma
- B. Measures small airway resistance
- C. Is more related to height rather than age
- D. Less than 50% of normal is an indication for aminophylline therapy in acute asthma
Correct Answer: A
Rationale: Peak expiratory flow rate is a useful tool to monitor response to asthma therapy, particularly in acute exacerbations.
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All patients with clinical evidence of a PDA are at increased risk for endocarditis. As a result, patients with PDA should be considered for irreversible closure EXCEPT
- A. small, hemodynamically insignificant PDA
- B. small, hemodynamically significant PDA
- C. moderate PDA
- D. large PDA
Correct Answer: A
Rationale: Small, hemodynamically insignificant PDAs may not require closure.
Specific receptor defects occur in:
- A. Guillain-Barre syndrome
- B. Myasthenia gravis
- C. Graves' disease
- D. Ulcerative colitis
Correct Answer: B
Rationale: Myasthenia gravis is characterized by antibodies against acetylcholine receptors at the neuromuscular junction, leading to muscle weakness.
Which plan would be appropriate in helping to control congestive heart failure (CHF) in an infant?
- A. Promoting fluid restriction
- B. Feeding a low-salt formula
- C. Feeding in semi-Fowler position
- D. Encouraging breast milk
Correct Answer: C
Rationale: Feeding in a more upright position helps fluid drain from the lungs, improving breathing and reducing cardiac workload.
The nurse is closely monitoring the intake and output of an infant with heart failure who is receiving diuretic therapy. The nurse should use which most appropriate method to assess urine output?
- A. Inserting a foley catheter.
- B. Weighing the diapers.
- C. Comparing intake with output.
- D. Measuring the amount of water added to the formula.
Correct Answer: B
Rationale: Weighing diapers is a non-invasive and accurate method to assess urine output in infants, which is crucial for monitoring the effectiveness of diuretic therapy.
Diagnosis of nocturnal enuresis can be made in:
- A. A 3-year-old boy with recurrent bedwetting
- B. A 4-year-old who has started bedwetting after attaining complete toilet control at 3½ years of age
- C. A 5-year-old girl who is recently staining her underclothes at school
- D. A 6-year-old recovering from a recent UTI
Correct Answer: B
Rationale: A 4-year-old who has started bedwetting after attaining complete toilet control at 3½ years of age: Nocturnal enuresis is diagnosed if bedwetting persists beyond the age of 5, especially if it starts after toilet training.