Method 1:
Apply first test
Read result in 7 days
If result is positive (greater than 10 mm of induration), follow recommendation for appropriate follow-up of positive skin test
If result is negative (0-9 mm of induration), apply second test (same day)
Read result of second test 48-72 hours later
Use result of second test as baseline
Method 2:
Apply first test
Read test in 48-72 hours
If result is positive (greater than 10 mm of induration), follow recommendation for appropriate follow-up of positive skin test
If result is negative (0-9 mm of induration), apply second test
1-3 weeks later
Read result of second test 48-72 hours later
Use result of second test as baseline
Authors: Patricia E. Ivie, Jimmy D. Prince
Ala. Admin. Code r. 420-5-10-.17
Statutory Authority:Code of Ala. 1975, §§ 22-21-20, etseq.