Sun14November1246PM 10

A 74-year-old man is undergoing a cardiopulmonary exercise (CPX) test as part of a preoperative assessment prior to colorectal surgery. He weighs 100 kg. His maximal oxygen consumption (VO2 max) is measured at 2,100 mL/minute.

Which one of the following metabolic equivalent (MET) values best approximates to his VO2 max?

(Please select 1 option)

6 METs This is the correct answer

8 METs

4 METs

2 METs Incorrect answer selected

10 METs

Explanation

1 MET approximates to a consumption of 3.5 ml O2/kg/minute.

The calculation is (2100/100)/3.5 = 21/3.5 = 6 METs.

1 MET Eating

Dressing

Use toilet

Walking slowly on level ground at 2-3 mph

2 METs Playing a musical instrument

Walking indoors around house

Light housework

4 METs Climbing a flight of stairs

Walking up hill

Running a short distance

Heavy housework, scrubbing floors, moving heavy furniture

Walking on level ground at 4 mph

Recreational activity, e.g. golf, bowling, dancing, tennis

6 METs Leisurely swimming

Leisurely cycling along the flat (8-10 mph)

8 METs Cycling along the flat (10-14 mph)

Basketball game

10 METs Moderate to hard swimming

Competitive football

Fast cycling (14-16 mph)

Answer Statistics

1

40%

2

16%

3

24%

4

16%

5

6%

Times answered: 243