NAPLEX Practice Exam 2026 – Comprehensive Test Preparation

In this case, the correct answer is B. An acneiform rash is a common side effect of EGFR inhibitors and has been associated with better outcomes in treated patients. The presence and severity of the rash can serve as a surrogate marker for drug activity and efficacy. Therefore, monitoring and managing this specific side effect can help predict treatment response and guide patient care.

Dry skin, QT prolongation, and vascular occlusions are not typically associated with better outcomes in patients treated with EGFR inhibitors.