Homework Clinic
Hands-on Clinic => Nursing and Clinical => Topic started by: debasdf on Jul 16, 2018
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What occurs when the temperature of a saturated gas drops down to its dew point?
a. Excess water vapor will condense as visi-ble droplets.
b. The temperature of the surrounding air decreases.
c. Any liquid water present will quickly evaporate.
d. The relative humidity of the gas begins to decrease.
Question 2
The American National Standards Institute has set a water vapor content level of 30 mg/L as the minimum absolute humidity required for patients whose upper airways have been bypassed. This equals what body humidity (BH)?
a. 68
b. 47
c. 75
d. 100
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Answer to Question 1
ANS: A
Cooling a saturated gas below its dew point causes increasingly more water vapor to condense into liquid water droplets.
Answer to Question 2
ANS: A
The BH of a gas is the ratio of its actual water vapor content to the water vapor capacity in saturated gas at body temperature (37 C). Thus, BH is the same as relative humidity, except that the capacity (or denominator) is fixed at 43.8 mg/L.