A patient receiving O2 via concentrator at 2L/min at home complains he can't feel O2 coming
out the prongs of the cannula. Which of the following should the RT do first?
a. Place the cannula under water and see if
...
A patient receiving O2 via concentrator at 2L/min at home complains he can't feel O2 coming
out the prongs of the cannula. Which of the following should the RT do first?
a. Place the cannula under water and see if bubbling occurs
b. Attach the cannula to a cylinder/flowmeter setup
c. Increase the flow to 5L/min
d. Replace the concentrator with a new one Correct Answer: a. Place the cannula under water
and see if bubbling occurs
The first step is to check to make sure there is flow passing through the cannula by having the
patient remove the cannula and place it in a cup of water. Bubbling will occur if there is flow. If
no bubbling occurs, the patient should make sure the cannula is attached to the flowmeter outlet
and the flowmeter is turned on. If there's any doubt, the patient should connect the cannula to the
cylinder back-up and call the home care company.
A pt is breathing 16 times per minute and has a Vt of 450mL. What is this pt's minute
ventilation?
a. 4.2L
b. 6.1L
c. 7.2L
d. 8.6L Correct Answer: c. 7.2L
Vt x R = Ve
A pt is breathing spontaneously using a 50% aerosol mask with the following ABG:
ph: 7.36
CO2: 43
O2: 48
HCO3: 24
Based on this information, the most appropriate recommendation is which of the following?
a. Initiate CPAP
b. Increase the O2 percentage to 70%
c. Change to a nonrebreathing mask
d. Change to a simple O2 mask at 10L/min Correct Answer: a. Initiate CPAP
A PaO2 of 55 mm Hg on 50% oxygen indicates refractory hypoxemia. Increasing the FIO2 most
likely won't improve the PaO2 in addition to increasing the potential for lung damage. Applying
CPAP to help recruit alveoli and allow for more surface area for oxygen to be able to enter the
blood is more appropriate
A pt is receiving mechanical ventilation with the following settings
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