A child is diagnosed with atopic dermatitis. Which laboratory test would the nurse expect the child to undergo to provide additional evidence for this condition?
Serum immunoglobulin E (IgE) level
Potassium hydroxide prep
Wound culture
Erythrocyte sedimentation rate
The Correct Answer is A
A. Atopic dermatitis is associated with allergic sensitization and an overactive immune response. Children with this condition often have elevated IgE levels, which provides supportive evidence of an atopic or allergic etiology. Measuring IgE can also help identify specific allergens that may trigger or worsen symptoms.
B. This test is used to detect fungal infections, such as ringworm or yeast infections. While fungal infections can complicate or mimic dermatitis, a KOH prep does not diagnose atopic dermatitis.
C. A wound culture identifies bacterial infections, such as Staphylococcus aureus, which can occur as a secondary complication in atopic dermatitis. However, it does not confirm the underlying condition itself.
D. ESR measures nonspecific systemic inflammation and can be elevated in many conditions, but it is not specific enough to be used as diagnostic evidence for atopic dermatitis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Mineralocorticoids (e.g., fludrocortisone) are used to treat adrenal insufficiency, not hyperthyroidism.
B. Levothyroxine is a synthetic thyroid hormone used to treat hypothyroidism, which is the opposite condition.
C. Dexamethasone is a corticosteroid used to reduce inflammation or treat adrenal insufficiency, not to manage thyroid hormone excess.
D. Methimazole is an antithyroid medication that inhibits thyroid hormone synthesis, making it the first-line treatment for hyperthyroidism in children, including Graves’ disease. Nurses should monitor for adverse effects such as rash, fever, or signs of infection, which can indicate agranulocytosis.
Correct Answer is C
Explanation
A. Returning to school solely based on a normal temperature is insufficient because the child can still spread the virus if lesions are not crusted.
B. Waiting until lesions have completely faded is unnecessary; contagion risk ends when lesions are crusted over.
C. The child is considered no longer contagious once all lesions have crusted. At this point, the virus is no longer easily transmitted to others, making it safe to return to school.
D. The timing of 10 days after onset is variable and not a reliable indicator of non-contagiousness, as lesion progression differs among children.
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