Question 1

A respiratory care practitioner sets up an oxygen device on a patient.How should the practitioner document the oxygen?

Accepted Answer

A)   The flowrate or FI02
B)   The oxygen device
C)   Date and time of set-up
D)   All of these D

Question 2

What is defined as an oxygen delivery system that provides all of the total inspiratory flow required by the patient?

Accepted Answer

A)   High-flow oxygen delivery system
B)   Low-flow oxygen delivery system
C)   Non-rebreathing oxygen delivery system
D)   Reservoir oxygen delivery system A

Question 3

If the FIO₂ is 50% or greater,all of the following hazards are possible EXCEPT ____________.

Accepted Answer

A)   absorption atelectasis.
B)   bacterial contamination.
C)   depression of ciliary function.
D)   oxygen toxicity. B

Question 4

Children receiving oxygen via an enclosure are at risk for a fire hazard if which of the following is used in the enclosure?
I.Battery-powered electric toys
II.Radio
III.Electrically powered appliances

Accepted Answer

A)   I, II, III
B)   I only
C)   II and III
D)   I and III

Question 5

What is defined as a system that supplies oxygen-enriched gas as part of a patient's inspiratory flow needs?

Accepted Answer

A)   High-flow oxygen delivery system
B)   Low-flow oxygen delivery system
C)   Partial rebreathing oxygen delivery system
D)   Long-term oxygen therapy

Question 6

During oxygen rounds,a patient on a nasal cannula has an oxygen saturation of 89%.No flow is felt coming from the device.What could be the problem?

Accepted Answer

The answer of During oxygen rounds,a patient on a nasal...

Question 7

In an average adult,it is estimated that the anatomic reservoir has a volume of approximately __________.

Accepted Answer

A)   50 cc
B)   100 cc
C)   150 cc
D)   200 cc

Question 8

Which of the following arterial blood gas or oximetry values would be an indication for oxygen in the hospital setting?
I.PaO₂ - 50 mmHg
II.SaO₂ - 91%
III.PaO₂ - 89 mmHg
IV.SaO₂ - 60%

Accepted Answer

A)   I and IV
B)   II and III
C)   IV only
D)   I, II, and III

Question 9

Which of the following is an advantage of a using a transtracheal catheter to deliver oxygen to a home care patient?

Accepted Answer

A)   It is an invasive catheter so infection risk is minimized.
B)   Routine cleaning of the device ensures continuous oxygen delivery to the patient.
C)   It is a high flow oxygen delivery system so all of the patient's inspiratory demands are met.
D)   Lower oxygen liter flows may be used than are required resulting in less oxygen used.

Question 10

Ventilatory depression may occur in spontaneously breathing patients with elevated PaCO₂.The PaO₂ should be kept around what level to prevent this complication?

Accepted Answer

A)   60%
B)   90 mmHg
C)   40 mmHg
D)   60 mmHg

Question 11

A newborn is admitted into the nursery and is started on an FIO₂ of 35% through an isolette.The patient's arterial blood gas is drawn and his PaO₂ measured to be 88 mmHg.What would be the associated risk for this patient?

Accepted Answer

A)   Oxygen toxicity
B)   Absorption atelectasis
C)   Oxygen induced hypoventilation
D)   Retinopathy of prematurity

Question 12

Which of the following is an absolute contraindication to oxygen therapy?

Accepted Answer

A)   Oxygen toxicity
B)   Paraquat poisoning
C)   Bleomycin therapy
D)   There are none

Question 13

A patient has an oxygen saturation of 95% on room air.The patient's vital signs reveal a heart rate of 120/minute with occasional PVCs,a respiratory rate of 38/minute,and mild cyanosis of the patient's mucous membranes.What should be done?

Accepted Answer

The answer of A patient has an oxygen saturation of...

Question 14

Which of the following statements is FALSE concerning the limitations of oxygen therapy?

Accepted Answer

A)   Oxygen therapy has only limited benefit for the treatment of hypoxia due to anemia.
B)   Oxygen therapy should not be used in lieu of but in addition to mechanical ventilation when ventilatory support is indicated.
C)   The benefit of oxygen therapy may be limited with circulatory disturbances.
D)   Supplemental oxygen should be administered with caution to patients suffering from cyanide poisoning and to patients receiving tobramycin.

Question 15

A patient has been on a non-rebreathing mask for 36 hours.What signs should the practitioner watch for and why?

Accepted Answer

The answer of A patient has been on a non-rebreathing...

Question 16

A patient is admitted to the emergency department.The patient's minute volume is steady and an exact FIO₂ is not required.Which oxygen delivery device would be best to administer approximately 30% oxygen?

Accepted Answer

A)   40% Venturi
B)   Nasal cannula at 2.5 LPM
C)   Simple oxygen mask at 7 LPM
D)   Non rebreathing mask at 15 LPM

Question 17

If an air entrainment device is set to deliver an FIO₂ of 60% with the flowmeter set at 15 LPM,what would be the total flow delivered by the device?

Accepted Answer

A)   40.5 LPM
B)   60 LPM
C)   15 LPM
D)   30 LPM

Question 18

Which type of oxygen analyzer uses an oxidation-reduction reaction to measure the FO₂ of an oxygen sample?

Accepted Answer

A)   Galvanic oxygen analyzer
B)   Polarographic oxygen analyzer
C)   Electrical oxygen analyzer
D)   a and b

Question 19

An air entrainment device is set to deliver 30% oxygen.If back pressure is applied by water accumulating in the device distal to the entrainment port,what will happen to the FIO₂ delivered to the patient?

Accepted Answer

A)   It would decrease.
B)   It would increase.
C)   It would remain unchanged.
D)   It would increase initially, then decrease.

Question 20

All of the following statements are true concerning the indications for long-term oxygen therapy (LTOT)in the home or alternate site health care facility EXCEPT ______________

Accepted Answer

A)   For the treatment of documented hypoxemia.
B)   LTOT has been shown to reduceHospitalizations and lengths of stay.
C)   LTOT has been indicated to improve the effectiveness of prophylactic bronchodilator therapy.
D)   LTOT has been shown to significantlyImprove survival in hypoxemic patients with chronic obstructive pulmonary disease (COP
D)  .

Exam 13: Oxygen Administration