## you administer an exercise test to determine caloric expenditure. your client is using 2.0 liters of oxygen per minute with an RER of .98. this is equivalent to approximately — calories per minute

### 10

To determine the caloric expenditure per minute, we need to use the formula for calculating caloric expenditure from oxygen consumption, which is:

Caloric expenditure (kcal/min) = VO2 (L/min) x 5 x (1.44 x RER – 0.99)

where VO2 is oxygen consumption in liters per minute, RER is respiratory exchange ratio (which represents the ratio of carbon dioxide produced to oxygen consumed), 5 is a constant for the amount of oxygen consumed per liter of oxygen inspired, 1.44 is the caloric equivalent for oxygen consumed (amount of energy produced per liter of oxygen consumed), and 0.99 is the amount of energy required to metabolize 1 liter of oxygen.

Using the given values:

VO2 = 2.0 L/min

RER = 0.98

Caloric expenditure (kcal/min) = 2.0 x 5 x (1.44 x 0.98 – 0.99)

Caloric expenditure (kcal/min) = 2.0 x 5 x (1.4112 – 0.99)

Caloric expenditure (kcal/min) = 2.0 x 5 x 0.4212

Caloric expenditure (kcal/min) = 4.212 kcal/min

Therefore, the client is burning approximately 4.212 calories per minute during the exercise test.

## More Answers:

Optimizing Oxygen Delivery: How the Respiratory and Cardiovascular Systems Work Together During ExerciseUnderstanding Alveolar Ventilation: Importance and Calculation Explained

Understanding Tidal Volume: Importance, Measurement, and Factors Affecting it in Respiratory Physiology