Answer to Question 1
Ans:
B, C
Feedback:
It is now believed that dysregulation of the RANKL/RANK/OPG pathway plays a prominent role in the pathogenesis of bone diseases such as neoplasia and bone lesions as well as osteoporosis. Avascular necrosis is known as bone necrosis (death) due to interruption to the blood supply of the bone.
Answer to Question 2
Ans:
B
Feedback:
Treatment of scabies should be extended to individuals with whom the affected person has had close contact. Antibiotics and steroids are not used in treatment of scabies, and irritants are of no particular threat.