14th February 2024

A new blood test is developed to aid in identifying patients who require CTPAs when presenting with shortness of breath and chest pain.

A new blood test is developed to aid in identifying patients who require CTPAs when presenting with shortness of breath and chest pain. 500 patients were recruited into the study, with 350 control patients and 150 patients with proven PEs. The sensitivity of the test was calculated to be 0.8. 

Based on the above, what number of patients with PEs tested positive for the blood test?