Each phase of pharmaceutical clinical trial involves dosing patients with a drug, then drawing a sample of the
blood every house for fifteen hours. An analytical chemist who tests the blood sample can pipet one sample every 15 seconds. How long will it take her to pipet the samples for 2 patients from a 3 – phase clinical trial?
a). 7.5 min
b). 22.5 min
c). 25 min
d). 27.5 min