An internal audit of a hospital's medical laboratory found 108 errors in testing of patient specimens for one month or 30 days. Each day 400 patients were tested using an average of 3.2 tests per patient. What is the dpmo for this situation?
A) Less than 500
B) More than or equal to 500 but less than 1,000
C) More than or equal to 1,000 but less than 2,000
D) More than or equal to 2,000

Question

Quizplus · Accepted Answer

To calculate DPMO (Defects Per Million Opportunities), use the formula: DPMO = (Number of Defects / (Number of Units x Number of Opportunities per Unit)) x 1,000,000. Here, defects = 108, units = 400 patients/day x 30 days = 12,000, opportunities per unit = 3.2 tests. DPMO = (108 / (12,000 x 3.2)) x 1,000,000 = 2,812.5, which is more than 2,000.

An Internal Audit of a Hospital's Medical Laboratory Found 108