Nokea
Childhood autism:
- A. Is commoner in boys
- B. Is characterised by extreme delay of social milestones
- C. Repetitive tasks are commonly performed
- D. Is characterised by extremely chaotic routines
Correct Answer: A
Rationale: Autism spectrum disorder is more commonly diagnosed in boys than girls, with a male-to-female ratio of approximately 4:1.
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All of the following are true regarding proximal renal tubular acidosis, except
- A. Growth failure in the first few years of life is a characteristic presentation
- B. Urine pH cannot be reduced to < 5.5
- C. It is usually a component of Fanconi syndrome
- D. Non-anion gap metabolic acidosis is common
Correct Answer: D
Rationale: Proximal renal tubular acidosis is associated with a normal anion gap metabolic acidosis, not a non-anion gap metabolic acidosis.
Exposure to which illness should be a cause to discontinue therapy and substitute dipyridamole (Persantine) in a child receiving aspirin therapy for Kawasaki disease (KD)?
- A. Chickenpox or influenza
- B. E. coli or staphylococcus
- C. Mumps or streptococcus A
- D. Streptococcus A or staphylococcus
Correct Answer: A
Rationale: Both chickenpox and influenza are viral; during these illnesses, aspirin (a salicylate) is typically discontinued due to the risk of Reye syndrome.
The nurse is caring for a client with a lower left lobe pulmonary abscess. Which position should the nurse instruct the client to maintain?
- A. left lateral
- B. Supine, knees flexed
- C. Dorsal recumbent
- D. Knee-chest
Correct Answer: A
Rationale: The left lateral position promotes drainage of the abscess and improves ventilation.
The nurse is talking to a parent of an infant with heart failure about feeding the infant. Which statement about feeding the child is correct?
- A. “You may need to increase the caloric density of your infant’s formula.â€
- B. “You should feed your baby every 2 hours.â€
- C. “You may need to increase the amount of formula your infant eats with each feeding.â€
- D. “You should place a nasal oxygen cannula on your infant during and after each feeding.â€
Correct Answer: A
Rationale: The metabolic rate of infants with heart failure is greater because of poor cardiac function and increased heart and respiratory rates. Their caloric needs are greater than those of the average infants, yet their ability to take in the calories is diminished by their fatigue. Infants with heart failure should be fed every 3 hours; a 2-hour schedule does not allow for enough rest, and a 4-hour schedule is too long. Fluids must be carefully monitored because of the heart failure. Infants do not require supplemental oxygen with feedings.
In the electrocardiogram of a 40-year old male, the QRS amplitude in lead I and aVF measured (+) 10 and (-)10mV respectively. The frontal QRS axis is
- A. (+) 15°
- B. (-) 45°
- C. (-) 75°
- D. (-) 90°
Correct Answer: B
Rationale: The frontal QRS axis is (-) 45° given the QRS amplitudes in leads I and aVF.