Nokea
In a child with scabies, which of the following is the most appropriate treatment?
- A. Permethrin
- B. Benzoyl peroxide
- C. Hydrocortisone
- D. Calamine lotion
Correct Answer: A
Rationale: Permethrin cream is the most effective treatment for scabies, as it targets the mites causing the infestation.
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Pulmonary stenosis
- A. Most common at pulmonary valve level
- B. Valve dilatation done for dysplastic valves
- C. Ejection click occurs in past stenotic dilatation
- D. Surgery done when Rt ventricular pressure exceeds 25 mmHg
Correct Answer: A
Rationale: Pulmonary stenosis is most commonly found at the pulmonary valve level.
The following statements are true regarding a screening test:
- A. Sensitivity indicates the proportion of true positives
- B. Specificity indicates the proportion of true negatives
- C. Sensitivity is inversely related to specificity
- D. Prevalence affects predictive value
Correct Answer: D
Rationale: Prevalence affects predictive value
The child becomes unresponsive. The most likely underlying lesion is
- A. cardiomyopathy
- B. anomalous coronary artery
- C. tetralogy of Fallot
- D. constipation
Correct Answer: C
Rationale: Tetralogy of Fallot can cause hypoxic spells leading to unresponsiveness.
A psychiatric referral is warranted in a preschool child with the following:
- A. Night terrors
- B. Separation anxiety
- C. Scared of ghosts
- D. Masturbation
Correct Answer: B
Rationale: Separation anxiety in a preschool child, especially if it is severe and persistent, may warrant a psychiatric referral to assess for anxiety disorders.
What are FIVE immediate management steps for an infant with Tetralogy of Fallot presenting with saturations of 60%?
- A. Knees to chest
- B. Calm baby
- C. Oxygen
- D. Beta-blocker
Correct Answer: A
Rationale: The knees-to-chest position helps increase systemic vascular resistance, improving oxygen saturation in a tetralogy of Fallot crisis.