An Adolescent Has a TB Skin Test Prior to Working

An adolescent has a TB skin test prior to working as a volunteer in a hospital. The adolescent is healthy and has not travelled to or from a TB-endemic area or had close contact with anyone who has TB. The Mantoux skin test shows 10 mm of induration after 48 hours. What will the primary care pediatric nurse practitioner do?

A) Ask the adolescent about exposure to homeless persons.
B) Order a chest radiograph to rule out active TB.
C) Reassure the adolescent that this is a negative screen.
D) Refer the adolescent to an infectious disease specialist.