Your patient has smoked 1.5 packs of cigarettes a day for the past 15 years.Prior to that he smoked 3.5 packs of cigarettes a day for 30 years.You record his pack/year history as

Question

Quizplus · Accepted Answer

The quantity of cigarette smoking is usually described in pack/year history.To calculate the patient's pack/year history,multiply the number of packs of cigarettes smoked on a daily basis by the number of years that the patient has smoked.
pack/year history = 1.5 × 15 = 22.5
= 3.5 × 30 = 105
Total pack/year history = 22.5 + 105 = 127.5

Your Patient Has Smoked 1