Question No 8.16 Southside Hospital in Bav Shorc. New ),,;1\. ___ commonly conducts stress tests to study the he.!!'t muscle after a person has a heart attack. Members ()t ,he diagnostic imaging department conducted a quality II11PI<l\ c• ment project wit

Question No 8.16

Southside Hospital in Bav Shorc. New ),,;1\.

___ commonly conducts stress tests to study the he.!!'t

muscle after a person has a heart attack. Members ()t ,he

diagnostic imaging department conducted a quality II11PI<l\ c•

ment project with the objective of reducing the turnanlldld

time for stress tests, Turnaround time is defined as the lime

from when a test is ordered to when the radiologist sigll~ \,IT

on the test results, Initially. the mean turnaround time t; 'i a

stress test was 68 hours, After incorporating changes into i he

stress-test process, the quality improvement team collectcci a

sample of 50 turnaround times. In this sample. the 111L,I11

turnaround time was 32 hours. \\i1b a standard devia1'clil

of () hours (data extracted from F. Godin, D. Ra\ ,.n.

e. Sweetapple. and F. R. Del Guidice. "Faster Test Resulh."

QlIulin' Progress. January 2004. 37( I J, pp, 33•-39).

a. Construct a 95% confidence