Essentials Of Human Disease 2nd Edition by Leonard Crowley

Exercise 21

Mary Larson is a 26-year-old student who works part time in a nursing home. She had to have a Mantoux test before she started working at the nursing home and the test was negative. However, the most recent Mantoux test performed 6 months later is positive. She wants to know what this means and what she should do about it. What would you tell her?