QTR 5 Final 1400 study guide

Which size cylinder would be most appropriate for use during patient transport?

• H

• G

• M

• E

Which safety system is used with small cylinders sizes A through E?

• Pin index safety system

• Diameter index safety system

• Direct acting valve safety system

• American standard safety system

One liter of liquid O₂ is equivalent to how many liters of gaseous O₂?

• 2.5

• 328

• 344

• 860

Which of the following E size cylinders will last the longest?

• Cylinder A

• Cylinder B

• Cylinder C

• Cylinder D

A stationary liquid O₂ system contains 80 lbs of O₂ when full. A home care patient is using it 8 hours each day, during sleep, and at a rate of 3 L/min. At this usage, how many days will the liquid O₂ last?

• 6 days

• 8 days

• 19 days

• 27 days

When a closed Thorpe tube is attached to a 50 psi O2 source, the indicator float jumps up then quickly falls to zero. This indicates that the flowmeter is:

• Broken

• A bourdon gauge flowmeter

• Compensated for back pressure

• Uncompensated for back pressure

The relative humidity is 40% and the capacity is 32 mg H2O/L. What is the absolute humidity?

• 1.3 mmHg

• 12.8 mmHg

• 60 mmHg

• 128 mmHg

At 37°C, water vapor exerts a partial pressure of ______________ and contains _______________.

• 43.9 mmHg; 47 mgH2O/L

• 47 mmHg; 44 mgH2O/L

• 44 mmHg; 44 mgH2O/L

• 100 mmHg; 100 mgH2O/L

What happens at the isothermic saturation boundary?

• No more cilia exist

• Turbulent convection occurs

• Inspired gas reaches body humidity

• The largest humidity deficit exists

Which of the following is not a goal of holding chambers?

• Minimizing inertial impaction of the aerosol

• Reducing the velocity of the propelled aerosol

• Maximizing oropharyngeal deposition of the aerosol

• Improving synchronization of the patient's inspiration