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HESI RN · HESI Pharmacology · Integumentary system drugs

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Showing all 3 practice questions with expert explanatory rationales.

Question 1 of 3

The following drugs are recognized causes of Stevens-Johnson syndrome:

A. Co-trimoxazole
B. Amoxicillin
C. L-Thyroxine
D. Phenytoin

Expert Explanatory Rationale

Correct Answer: Phenytoin

Question 2 of 3

Dilatation of the pupil (mydriasis) is produced by:

A. Cyclopentolate
B. Dorzolamide
C. Atropine
D. Phenylephrine

Expert Explanatory Rationale

Correct Answer: Atropine

Question 3 of 3

The following are effective in the management of eczema:

A. Topical betamethasone
B. Topical alpha-tocopherol
C. Dithranol
D. Calcipotriol

Expert Explanatory Rationale

Correct Answer: Topical betamethasone

Option A: Topical betamethasone is a potent corticosteroid that effectively reduces inflammation and itching associated with eczema, making it a first-line treatment in managing this condition. Its anti-inflammatory properties help to alleviate symptoms and promote skin healing.

Option B: Topical alpha-tocopherol, while an antioxidant, does not have established efficacy in treating eczema and lacks the anti-inflammatory action needed for effective management.

Option C: Dithranol is primarily used for psoriasis and is not indicated for eczema, as it can cause irritation and is not effective for this condition.

Option D: Calcipotriol is a vitamin D analog used mainly for psoriasis treatment and does not address the inflammatory component of eczema effectively.

Takeaways: Effective management of eczema often involves the use of topical corticosteroids like betamethasone, which significantly reduce inflammation and itching, requiring appropriate patient education on its use to ensure safe and effective treatment.

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