The Primary Care Pediatric Nurse Practitioner Is Examining a 17­year­old

The primary care pediatric nurse practitioner is examining a 17­year­old male
who is on his high school swim team. The adolescent is concerned about "lumps" on his chest. The nurse practitioner notes a marked increase in weight since the last visit along with worsening of the adolescent's acne. Given this set of symptoms, which performance­ enhancing substance will the nurse practitioner be most concerned about and ask about?

A) Creatine
B) Dehydroepiandrosterone (DHEA)
C) Ephedra
D) Growth hormone