Calculate the humidity deficit when a heat moisture exchanger (HME) provided 20 mg/L of water to the set tidal volume. The material indicates the deficit as which value?

Prepare for the Mechanical Vent Test with our study tools, featuring multiple choice questions, explanations, and practice exercises. Get ready to ace your exam!

Multiple Choice

Calculate the humidity deficit when a heat moisture exchanger (HME) provided 20 mg/L of water to the set tidal volume. The material indicates the deficit as which value?

Explanation:
Humidity deficit is the amount of water still needed to bring inspired gas to full saturation at the airway temperature. The material uses a saturated water content around 50 mg/L for this calculation. If the HME adds 20 mg/L of water to the inspired gas, the remaining deficit is 50 minus 20, which equals 30 mg/L. That’s why the indicated deficit is 30 mg/L. (Note: some references use 44 mg/L for saturation at 37°C, which would yield a different numeric deficit.)

Humidity deficit is the amount of water still needed to bring inspired gas to full saturation at the airway temperature. The material uses a saturated water content around 50 mg/L for this calculation. If the HME adds 20 mg/L of water to the inspired gas, the remaining deficit is 50 minus 20, which equals 30 mg/L. That’s why the indicated deficit is 30 mg/L. (Note: some references use 44 mg/L for saturation at 37°C, which would yield a different numeric deficit.)

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy