Question 1

What is the problem with input flows greater than 10 to 15 L/min in an infant Oxy-Hood?

Accepted Answer

A) production of harmful noise levels 
B) difficulty in maintaining adequate humidification 
C) difficulty in maintaining stable high FIO2 values 
D) increased likelihood of cold stress 
A) production of harmful noise levels 
B) difficulty in maintaining adequate humidification 
C) difficulty in maintaining stable high FIO2 values 
D) increased likelihood of cold stress

Question 2

A physician orders 40% O2 through an air-entrainment nebulizer for a patient with a minute volume of 12 L/min. What is the minimum nebulizer input flow required to ensure the prescribed FIO2?

Accepted Answer

A) 8 L/min 
B) 10 L/min 
C) 12 L/min 
D) 14 L/min 
A) 8 L/min 
B) 10 L/min 
C) 12 L/min 
D) 14 L/min

Question 3

What is the most common complication of hyperbaric oxygen therapy?

Accepted Answer

A) air embolism 
B) pneumothorax 
C) ear or sinus barotrauma 
D) seizures or convulsions 
A) air embolism 
B) pneumothorax 
C) ear or sinus barotrauma 
D) seizures or convulsions

Question 4

What is the maximum FIO2 expected to be delivered by most air-entrainment masks?

Accepted Answer

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

Question 5

During hyperbaric oxygen therapy at 3 ATA, plasma contains about how much dissolved O2?

Accepted Answer

A) 1 ml/dl 
B) 3 ml/dl 
C) 5 ml/dl 
D) 7 ml/dl 
A) 1 ml/dl 
B) 3 ml/dl 
C) 5 ml/dl 
D) 7 ml/dl

Question 6

Which of the following are advantages of the nasal cannula as a low-flow O2 delivery system?
I.stability
II.low cost
III.easy application
IV.disposability

Accepted Answer

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

Question 7

What does 1 atmospheric pressure absolute (ATA) equal?
I.101 kPa
II.50 psi
III.760 mm Hg

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

Which of the following is FALSE about air-entrainment systems?

Accepted Answer

A) Their FIO2 values are directly proportional to their total flow. 
B) They can provide variable FIO2 values under some clinical conditions. 
C) They always deliver O2 concentrations less than 100%. 
D) They yield a set FIO2 only if their flow exceeds the patient's. 
A) Their FIO2 values are directly proportional to their total flow. 
B) They can provide variable FIO2 values under some clinical conditions. 
C) They always deliver O2 concentrations less than 100%. 
D) They yield a set FIO2 only if their flow exceeds the patient's.

Question 9

Which of the following alternatives may increase the FIO2 capabilities of air-entrainment nebulizers?
I.	Add open reservoir to expiratory side of T-tube.
II.	Connect together two or more nebulizers.
III.	Use a commercial dual-flow system.
IV.	Add open reservoir to inspiratory side of T-tube.

Accepted Answer

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

Question 10

Which of the following is false about multiplace hyperbaric oxygenation chambers?

Accepted Answer

A) The chamber normally is filled with 100% O2. 
B) Air locks allow entry and egress of caregivers. 
C) Pressures of 6 ATA or more can be applied. 
D) Care is provided directly within the chamber. 
A) The chamber normally is filled with 100% O2. 
B) Air locks allow entry and egress of caregivers. 
C) Pressures of 6 ATA or more can be applied. 
D) Care is provided directly within the chamber.

Question 11

Which of the following is an indication for the use of helium-O2 mixtures?

Accepted Answer

A) large-airway obstruction 
B) small-airway obstruction 
C) restrictive diseases 
D) physiologic shunting 
A) large-airway obstruction 
B) small-airway obstruction 
C) restrictive diseases 
D) physiologic shunting

Question 12

Criteria for initiating hyperbaric oxygen (HBO) therapy on an adult patient suspected of suffering from acute carbon monoxide poisoning include all of the following except:

Accepted Answer

A) history of unconsciousness 
B) carboxyhemoglobin saturation less than 20% 
C) presence of neurologic abnormality 
D) presence of cardiac instability 
A) history of unconsciousness 
B) carboxyhemoglobin saturation less than 20% 
C) presence of neurologic abnormality 
D) presence of cardiac instability

Question 13

What is/are the primary organ system(s) affected by O2 toxicity?
I.central nervous system (CNS)II.lungs
III.kidneys

Accepted Answer

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

Question 14

A true high-flow O2 delivery system should provide at least what flow?

Accepted Answer

A) 60 L/min 
B) 50 L/min 
C) 40 L/min 
D) 30 L/min 
A) 60 L/min 
B) 50 L/min 
C) 40 L/min 
D) 30 L/min

Question 15

You can determine that a nasal O2 catheter is properly positioned when its tip is where?

Accepted Answer

A) visualized just below the uvula 
B) visualized in the oropharynx 
C) advanced beyond the epiglottis 
D) retracted just above the uvula 
A) visualized just below the uvula 
B) visualized in the oropharynx 
C) advanced beyond the epiglottis 
D) retracted just above the uvula

Question 16

Which of the following signs and symptoms are associated with the presence of hypoxemia?
I.tachypnea
II.tachycardia
III.cyanosis
IV.bradycardia

Accepted Answer

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

Question 17

To ensure a stable FIO2 under varying patient demands, what must an O2 delivery system do?

Accepted Answer

A) have a reservoir system at least equal to the VT 
B) provide all the gas needed by the patient during inspiration 
C) maintain flows that are at least equal to the patient's peak flows 
D) be able to deliver any O2 concentration from 21% to 100% 
A) have a reservoir system at least equal to the VT 
B) provide all the gas needed by the patient during inspiration 
C) maintain flows that are at least equal to the patient's peak flows 
D) be able to deliver any O2 concentration from 21% to 100%

Question 18

Which of the following are components of a typical O2 blender?
I.precision metering device or mixture control
II.audible dual low-pressure alarm system
III.pressure regulating and equalizing valves
IV.variable-size air-entrainment port

Accepted Answer

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

Question 19

A physician orders 2 L/min O2 through a simple mask to a 33-year-old postoperative woman with moderate hypoxemia breathing room air (PaO2 = 52 mm Hg). What would be the correct action at this time?

Accepted Answer

A) Carry out the physician's prescription exactly as written. 
B) Recommend that the mask be changed to a cannula at 2 L/min. 
C) Recommend a flow of at least 5 L/min to wash out carbon dioxide (CO2). 
D) Do not apply the O2 until the medical director has been contacted. 
A) Carry out the physician's prescription exactly as written. 
B) Recommend that the mask be changed to a cannula at 2 L/min. 
C) Recommend a flow of at least 5 L/min to wash out carbon dioxide (CO2). 
D) Do not apply the O2 until the medical director has been contacted.

Question 20

Clogging of an isolette incubator air inlet filter will result in which of the following?

Accepted Answer

A) excessive heat buildup 
B) increased convection cooling 
C) increased O2 concentrations 
D) automatic sounding of an alarm 
A) excessive heat buildup 
B) increased convection cooling 
C) increased O2 concentrations 
D) automatic sounding of an alarm

Exam 38: Medical Gas Therapy

What is the problem with input flows greater than 10 to 15 L/min in an infant Oxy-Hood?

A physician orders 40% O2 through an air-entrainment nebulizer for a patient with a minute volume of 12 L/min. What is the minimum nebulizer input flow required to ensure the prescribed FIO2?

What is the most common complication of hyperbaric oxygen therapy?

What is the maximum FIO2 expected to be delivered by most air-entrainment masks?

During hyperbaric oxygen therapy at 3 ATA, plasma contains about how much dissolved O2?

Which of the following are advantages of the nasal cannula as a low-flow O2 delivery system? I.stability II.low cost III.easy application IV.disposability

What does 1 atmospheric pressure absolute (ATA) equal? I.101 kPa II.50 psi III.760 mm Hg

Which of the following is FALSE about air-entrainment systems?

Which of the following alternatives may increase the FIO2 capabilities of air-entrainment nebulizers? I. Add open reservoir to expiratory side of T-tube. II. Connect together two or more nebulizers. III. Use a commercial dual-flow system. IV. Add open reservoir to inspiratory side of T-tube.

Which of the following is false about multiplace hyperbaric oxygenation chambers?

Which of the following is an indication for the use of helium-O2 mixtures?

Criteria for initiating hyperbaric oxygen (HBO) therapy on an adult patient suspected of suffering from acute carbon monoxide poisoning include all of the following except:

What is/are the primary organ system(s) affected by O2 toxicity? I.central nervous system (CNS)II.lungs III.kidneys

A true high-flow O2 delivery system should provide at least what flow?

You can determine that a nasal O2 catheter is properly positioned when its tip is where?

Which of the following signs and symptoms are associated with the presence of hypoxemia? I.tachypnea II.tachycardia III.cyanosis IV.bradycardia

To ensure a stable FIO2 under varying patient demands, what must an O2 delivery system do?

Which of the following are components of a typical O2 blender? I.precision metering device or mixture control II.audible dual low-pressure alarm system III.pressure regulating and equalizing valves IV.variable-size air-entrainment port

A physician orders 2 L/min O2 through a simple mask to a 33-year-old postoperative woman with moderate hypoxemia breathing room air (PaO2 = 52 mm Hg). What would be the correct action at this time?

Clogging of an isolette incubator air inlet filter will result in which of the following?

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

A physician orders 40% O₂ through an air-entrainment nebulizer for a patient with a minute volume of 12 L/min. What is the minimum nebulizer input flow required to ensure the prescribed FIO₂?

What is the most common complication of hyperbaric oxygentherapy?

What is the maximum FIO₂ expected to be delivered by most air-entrainment masks?

During hyperbaric oxygen therapy at 3 ATA, plasma contains about how much dissolved O₂?

Which of the following are advantages of the nasal cannula as a low-flow O₂ delivery system? I.stability II.low cost III.easy application IV.disposability

Which of the following alternatives may increase the FIO₂ capabilities of air-entrainment nebulizers? I. Add open reservoir to expiratory side of T-tube. II. Connect together two or more nebulizers. III. Use a commercial dual-flow system. IV. Add open reservoir to inspiratory side of T-tube.

Which of the following is an indication for the use of helium-O₂mixtures?

What is/are the primary organ system(s) affected by O₂ toxicity? I.central nervous system (CNS)II.lungs III.kidneys

A true high-flow O₂delivery system should provide at least what flow?

You can determine that a nasal O₂ catheter is properly positioned when its tip is where?

To ensure a stable FIO₂under varying patient demands, what must an O₂ delivery system do?

Which of the following are components of a typical O₂ blender? I.precision metering device or mixture control II.audible dual low-pressure alarm system III.pressure regulating and equalizing valves IV.variable-size air-entrainment port

A physician orders 2 L/min O₂through a simple mask to a 33-year-old postoperative woman with moderate hypoxemia breathing room air (PaO₂ = 52 mm Hg). What would be the correct action at this time?