Question 1

Features of an ideal delivery system for NO for use with mechanical ventilation include all of the following except:

Accepted Answer

A) provides precise and stable NO dose delivery 
B) premixes NO and O2 in a holding reservoir 
C) provides accurate NO and NO2 monitoring 
D) maintains proper ventilator function 
A) provides precise and stable NO dose delivery 
B) premixes NO and O2 in a holding reservoir 
C) provides accurate NO and NO2 monitoring 
D) maintains proper ventilator function

Question 2

To confirm proper operation of an O2 blending system, what should you do?
I.	Test low-pressure alarms and bypass systems.
II.	Analyze FIO2 at 0.21, 1.00, and prescribed level.
III.	Confirm air and O2 inlet pressures.

Accepted Answer

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

Question 3

Which of the following is consistent with the radiographic appearance after prolonged exposure to O2?

Accepted Answer

A) air bronchograms 
B) pulmonary abscess 
C) patchy infiltrates 
D) pneumothorax 
A) air bronchograms 
B) pulmonary abscess 
C) patchy infiltrates 
D) pneumothorax

Question 4

Delivery systems that provide only a portion of a patient's inspired gas are referred to as what?

Accepted Answer

A) fixed-performance systems 
B) variable-performance systems 
C) high-flow O2 systems 
D) air-entrainment systems 
A) fixed-performance systems 
B) variable-performance systems 
C) high-flow O2 systems 
D) air-entrainment systems

Question 5

You are giving a 80% He:20% O2 mixture to an asthmatic patient through a nonrebreathing mask with a compensated Thorpe tube O2 flowmeter set at 8 L/min. What is the actual flow being delivered to the patient?

Accepted Answer

A) 10 L/min 
B) 12 L/min 
C) 14 L/min 
D) 18 L/min 
A) 10 L/min 
B) 12 L/min 
C) 14 L/min 
D) 18 L/min

Question 6

You must deliver the highest possible FIO2 to a 67-year-old man with pulmonary edema breathing at a rate of 35/min. Which of the following O2 delivery systems would be most appropriate?

Accepted Answer

A) nonrebreathing mask at 12 to 15 L/min 
B) simple mask at 12 to 15 L/min 
C) partial rebreathing mask at 12 to 15 L/min 
D) aerosol mask with nebulizer set to 100% 
A) nonrebreathing mask at 12 to 15 L/min 
B) simple mask at 12 to 15 L/min 
C) partial rebreathing mask at 12 to 15 L/min 
D) aerosol mask with nebulizer set to 100%

Question 7

Specific clinical objectives of oxygen (O2) therapy include which of the following?
I.decrease the symptoms caused by chronic hypoxemia
II.decrease the workload hypoxemia imposes on the heart and lungs
III.correct documented arterial hypoxemia

Accepted Answer

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

Question 8

A 52-year-old man is admitted to the hospital emergency department with a primary complaint of severe radiating chest pain and signs of central cyanosis. The attending asks for your advice on selecting a device that provides a moderate FIO2 for this patient. Which of the following would you recommend?

Accepted Answer

A) simple O2 mask at 8 L/min 
B) air-entrainment mask at 40% O2 
C) nasal cannula at 5 L/min 
D) nonrebreathing mask at 10 L/min 
A) simple O2 mask at 8 L/min 
B) air-entrainment mask at 40% O2 
C) nasal cannula at 5 L/min 
D) nonrebreathing mask at 10 L/min

Question 9

Which of the following would indicate a need for O2 therapy for a newborn infant?
I.SaO2 less than 88%
II.capillary PO2 less than 40 mm Hg
III.PaO2 less than 60 mm Hg

Accepted Answer

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

Question 10

What is the upper limit of O2 concentrations available through tents?

Accepted Answer

A) 60% to 70% 
B) 50% to 60% 
C) 40% to 50% 
D) 30% to 40% 
A) 60% to 70% 
B) 50% to 60% 
C) 40% to 50% 
D) 30% to 40%

Question 11

You note that the air intake ports surrounding the jet of a 35% air-entrainment mask are partially obstructed by the patient's bedding. Which of the following would you expect?
I.decrease in the device's total output flow
II.increase in the percent O2 delivered by the device
III.change in the FIO2 received by the patient

Accepted Answer

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

Question 12

Low-flow O2 delivery systems used in respiratory care include all of the following except:

Accepted Answer

A) nasal O2 cannula 
B) nasal O2 catheter 
C) air-entrainment mask 
D) transtracheal catheter 
A) nasal O2 cannula 
B) nasal O2 catheter 
C) air-entrainment mask 
D) transtracheal catheter

Question 13

At what level of carboxyhemoglobin saturation is hyperbaric oxygen (HBO) therapy indicated for an adult patient?

Accepted Answer

A) greater than 10% 
B) greater than 15% 
C) greater than 20% 
D) greater than 25% 
A) greater than 10% 
B) greater than 15% 
C) greater than 20% 
D) greater than 25%

Question 14

Which of the following is FALSE about the simple O2 mask?

Accepted Answer

A) It has no valving system or reservoir bag. 
B) It can easily deliver high FIO2 values (greater than 0.6 to 0.7) 
C) It requires a minimal input flow of 5 L/min. 
D) It functions as a variable-performance system. 
A) It has no valving system or reservoir bag. 
B) It can easily deliver high FIO2 values (greater than 0.6 to 0.7) 
C) It requires a minimal input flow of 5 L/min. 
D) It functions as a variable-performance system.

Question 15

A 27-year-old woman received from the emergency department is on a nasal cannula at 5 L/min. Approximately what FIO2 is this patient receiving?

Accepted Answer

A) 28% 
B) 32% 
C) 35% 
D) 40% 
A) 28% 
B) 32% 
C) 35% 
D) 40%

Question 16

Potential adverse effects associated with NO therapy include all of the following except:

Accepted Answer

A) poor or paradoxical response 
B) increased blood clotting 
C) increased left ventricular filling pressures 
D) rebound hypoxemia or pulmonary hypertension 
A) poor or paradoxical response 
B) increased blood clotting 
C) increased left ventricular filling pressures 
D) rebound hypoxemia or pulmonary hypertension

Question 17

Primary safety concerns in the application of hyperbaric oxygenation include which of the following?
I.sudden decompression
II.electrical fires
III.CO2 accumulation

Accepted Answer

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

Exam 38: Medical Gas Therapy

Features of an ideal delivery system for NO for use with mechanical ventilation include all of the following except:

To confirm proper operation of an O2 blending system, what should you do? I. Test low-pressure alarms and bypass systems. II. Analyze FIO2 at 0.21, 1.00, and prescribed level. III. Confirm air and O2 inlet pressures.

Which of the following is consistent with the radiographic appearance after prolonged exposure to O2?

Delivery systems that provide only a portion of a patient's inspired gas are referred to as what?

You are giving a 80% He:20% O2 mixture to an asthmatic patient through a nonrebreathing mask with a compensated Thorpe tube O2 flowmeter set at 8 L/min. What is the actual flow being delivered to the patient?

You must deliver the highest possible FIO2 to a 67-year-old man with pulmonary edema breathing at a rate of 35/min. Which of the following O2 delivery systems would be most appropriate?

Specific clinical objectives of oxygen (O2) therapy include which of the following? I.decrease the symptoms caused by chronic hypoxemia II.decrease the workload hypoxemia imposes on the heart and lungs III.correct documented arterial hypoxemia

Which of the following would indicate a need for O2 therapy for a newborn infant? I.SaO2 less than 88% II.capillary PO2 less than 40 mm Hg III.PaO2 less than 60 mm Hg

What is the upper limit of O2 concentrations available through tents?

Low-flow O2 delivery systems used in respiratory care include all of the following except:

At what level of carboxyhemoglobin saturation is hyperbaric oxygen (HBO) therapy indicated for an adult patient?

Which of the following is FALSE about the simple O2 mask?

A 27-year-old woman received from the emergency department is on a nasal cannula at 5 L/min. Approximately what FIO2 is this patient receiving?

Potential adverse effects associated with NO therapy include all of the following except:

Primary safety concerns in the application of hyperbaric oxygenation include which of the following? I.sudden decompression II.electrical fires III.CO2 accumulation

History of Respiratory Care

Quality and Evidence-Based Respiratory Care

Patient Safety, Communication, and Record Keeping

Principles of Infection Control

Ethical and Legal Implications of Practice

Physical Principles of Respiratory Care

Computer Applications in Respiratory Care

The Respiratory System

The Cardiovascular System

Ventilation

Gas Exchange and Transport

Solutions, Body Fluids, and Electrolytes

Acid-Base Balance

Regulation of Breathing

Bedside Assessment of the Patient

Interpretation of Clinical Laboratory Data

Interpreting the Electrocardiogram

Analysis and Monitoring of Gas Exchange

Pulmonary Function Testing

A Review of Thoracic Imaging

Nutrition Assessment

Pulmonary Infections

Obstructive Lung Disease: Copd, Asthma, and Related Diseases

Interstitial Lung Disease

Pleural Diseases

Pulmonary Vascular Disease

Acute Lung Injury, Pulmonary Edema, and Multiple System Organ

Lung Cancer

Neuromuscular and Other Diseases of the Chest Wall

Disorders of Sleep

Neonatal and Pediatric Respiratory Disorders

Airway Pharmacology

Airway Management

Emergency Cardiovascular Life Support

Humidity and Bland Aerosol Therapy

Aerosol Drug Therapy

Storage and Delivery of Medical Gases

Lung Expansion Therapy

Bronchial Hygiene Therapy

Respiratory Failure and the Need for Ventilatory Support

Mechanical Ventilators

Physiology of Ventilatory Support

Initiating and Adjusting Ventilatory Support

Noninvasive Positive Pressure Ventilation

Monitoring and Management of the Patient in the Intensive Care Unit

Discontinuing Ventilatory Support

Neonatal and Pediatric Respiratory Care

Patient Education and Health Promotion

Cardiopulmonary Rehabilitation

Respiratory Care in Alternative Settings

Filters

To confirm proper operation of an O₂ blending system, what should you do? I. Test low-pressure alarms and bypass systems. II. Analyze FIO2 at 0.21, 1.00, and prescribed level. III. Confirm air and O2 inlet pressures.

Which of the following is consistent with the radiographic appearance after prolonged exposure to O₂?

You are giving a 80% He:20% O₂mixture to an asthmatic patient through a nonrebreathing mask with a compensated Thorpe tube O₂ flowmeter set at 8 L/min. What is the actual flow being delivered to the patient?

You must deliver the highest possible FIO₂ to a 67-year-old man with pulmonary edema breathing at a rate of 35/min. Which of the following O₂ delivery systems would be most appropriate?

Specific clinical objectives of oxygen (O₂) therapy include which of the following? I.decrease the symptoms caused by chronic hypoxemia II.decrease the workload hypoxemia imposes on the heart and lungs III.correct documented arterial hypoxemia

Which of the following would indicate a need for O₂ therapy for a newborn infant? I.SaO₂less than 88% II.capillary PO₂less than 40 mm Hg III.PaO₂less than 60 mm Hg

What is the upper limit of O₂ concentrations available through tents?

Low-flow O₂ delivery systems used in respiratory care include all of the following except:

Which of the following is FALSE about the simple O₂ mask?

A 27-year-old woman received from the emergency department is on a nasal cannula at 5 L/min. Approximately what FIO₂is this patient receiving?

Primary safety concerns in the application of hyperbaric oxygenation include which of the following? I.sudden decompression II.electrical fires III.CO₂ accumulation