Which of the following is NOT listed as a Class I topical steroid in the material?

Which of the following is NOT listed as a Class I topical steroid in the material?

• A. Triamcinolone
• B. Clobetasol
• C. Halobetasol
• D. Betamethasone

Answer: (A)

Class I topical steroids are the most potent group used on the skin, reserved for short courses and confined areas due to higher risk of thinning, stretch marks, and systemic suppression. In standard ABFAS study materials, the strongest options listed as Class I include clobetasol and halobetasol, and often betamethasone in its high-potency form. Triamcinolone is a mid-range potency steroid, not in the top-tier Class I category, so it isn’t listed as a Class I agent in that material. That makes Triamcinolone the best answer here.

Class I topical steroids are the most potent group used on the skin, reserved for short courses and confined areas due to higher risk of thinning, stretch marks, and systemic suppression. In standard ABFAS study materials, the strongest options listed as Class I include clobetasol and halobetasol, and often betamethasone in its high-potency form. Triamcinolone is a mid-range potency steroid, not in the top-tier Class I category, so it isn’t listed as a Class I agent in that material. That makes Triamcinolone the best answer here.