Which type of calorimeter is best suited to measure the energy expenditure of a mechanically ventilated patient with a heated humidifier?
A) IR
B) Open-circuit
C) Closed-circuit
D) Double-circuit

Question

Quizplus · Accepted Answer

Closed-circuit calorimeters can be used for both spontaneously breathing and mechanically ventilated patients.Open-circuit devices can also be used for both spontaneously breathing and mechanically ventilated patients.However,special problems can arise when systems are used with mechanically ventilated patients.Some of these problems include fluctuations in FɪO₂,separation of the patient's inspired and expired gases from the continuous gas flow provided by the ventilator,and handling of water vapor.

Which Type of Calorimeter Is Best Suited to Measure the Energy