Difficulty: Medium
Average Score: 88%
Simulated
A school nurse identifies 15 new students with positive tuberculin tests among the 500 at-risk students tested. Which is the rate per 1,000 with new positive tests?
Correct answer
B
Rationale
The rate is calculated as (15/500) * 1,000 = 30/1,000, accurately reflecting the proportion of students with positive tests per 1,000.