Question 1

Which of the following statements about He is false?

Accepted Answer

A) It is an inert gas. 
B) It is odorless. 
C) It is nonflammable. 
D) It is heavier than air. 
A) It is an inert gas. 
B) It is odorless. 
C) It is nonflammable. 
D) It is heavier than air.

Question 2

When using a Bourdon gauge against high outflow resistance, what will the flowmeter reading show?

Accepted Answer

A) exceed actual flow 
B) be less than actual flow 
C) equal actual flow 
D) equal 50 psi 
A) exceed actual flow 
B) be less than actual flow 
C) equal actual flow 
D) equal 50 psi

Question 3

You are planning a patient transport that will take about 1 $\frac { 1 } { 2 }$ hours. The patient requires manual ventilation with 10 L/min of O2. What is the minimum number of full E cylinders you would take with you?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 4

Why are zone valves incorporated into a hospital's central gas piping systems?
I.to terminate O2 delivery to an area in case of fire
II.to allow selective maintenance without shutting the system down
III.to allow variable pressure reduction throughout the system

Accepted Answer

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

Question 5

To clean a cylinder valve outlet of foreign material, what should you do?

Accepted Answer

A) Wipe the valve outlet with a light oil. 
B) Quickly open, then close, the valve. 
C) Blow into the valve outlet a few times. 
D) Wipe the valve outlet with an alcohol swab. 
A) Wipe the valve outlet with a light oil. 
B) Quickly open, then close, the valve. 
C) Blow into the valve outlet a few times. 
D) Wipe the valve outlet with an alcohol swab.

Question 6

A very common application of the adjustable pressure-reducing valve is in combination with which of the following?

Accepted Answer

A) flow restrictor 
B) Thorpe tube flowmeter 
C) Bourdon gauge 
D) uncompensated flowmeter 
A) flow restrictor 
B) Thorpe tube flowmeter 
C) Bourdon gauge 
D) uncompensated flowmeter

Question 7

What safety system is designed to prevent accidental interchanging among low-pressure (less than 200 psig) connectors such as those found on flowmeters and ventilators?

Accepted Answer

A) PISS 
B) ASSS 
C) DISS 
D) CGA 
A) PISS 
B) ASSS 
C) DISS 
D) CGA

Question 8

Air for medical use in a hospital should be which of the following?
I.particle-free
II.oil-free
III.dry

Accepted Answer

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

Question 9

By what means is air for medical use in a hospital most commonly produced?

Accepted Answer

A) chemical decomposition 
B) electrolysis 
C) fractional distillation 
D) physical separation 
A) chemical decomposition 
B) electrolysis 
C) fractional distillation 
D) physical separation

Question 10

How can one determine whether a pressure-reducing valve uses multiple stages for pressure reduction?

Accepted Answer

A) by noting the number of gauges attached to the valve 
B) by noting the DISS code 
C) by noting the ASSS code 
D) by noting the number of pressure relief vents 
A) by noting the number of gauges attached to the valve 
B) by noting the DISS code 
C) by noting the ASSS code 
D) by noting the number of pressure relief vents

Question 11

The measured pressure in a gas-filled cylinder is equivalent to which of the following?

Accepted Answer

A) its filling density divided by the cylinder gas factor 
B) gas temperature times its coefficient of expansion 
C) gas density divided by the density of air at standard temperature, standard pressure, dry (STP
D)  
D) the force required to compress its volume within the cylinder 
A) its filling density divided by the cylinder gas factor 
B) gas temperature times its coefficient of expansion 
C) gas density divided by the density of air at standard temperature, standard pressure, dry (STP
D)  
D) the force required to compress its volume within the cylinder

Question 12

Under what conditions will the gauge pressure of a cylinder of N2O accurately represent its contents?
I.when the liquid in the cylinder has completely vaporized
II.when the ambient temperature exceeds the critical temperature
III.when the filling density is less than 1.0 (water-filled)

Accepted Answer

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

Question 13

You are preparing to conduct a complex transport of a patient receiving O2, and you expect to have to alter O2 flows during the transport. Which of the following devices would best meet your needs?

Accepted Answer

A) uncompensated Thorpe tube 
B) flow restrictor 
C) compensated Thorpe tube 
D) Bourdon gauge 
A) uncompensated Thorpe tube 
B) flow restrictor 
C) compensated Thorpe tube 
D) Bourdon gauge

Question 14

You are called by a nursing home to help set up O2 for a patient, delivered through a jet nebulizer. Unfortunately, all that is available is an old uncompensated Thorpe tube flowmeter. When set to 8 L/min, the nebulizer creates an additional 30 psig of downstream pressure. About what flow of O2 will the patient now receive?

Accepted Answer

A) 4 L/min 
B) 6 L/min 
C) 8 L/min 
D) 12 L/min 
A) 4 L/min 
B) 6 L/min 
C) 8 L/min 
D) 12 L/min

Question 15

Which of the following methods of producing O2 is commonly used in the home care setting?

Accepted Answer

A) chemical decomposition 
B) electrolysis 
C) fractional distillation 
D) physical separation 
A) chemical decomposition 
B) electrolysis 
C) fractional distillation 
D) physical separation

Question 16

Large hospital air compressor systems must be capable of maintaining 50 pounds per square inch gauge (psig) at what flows?

Accepted Answer

A) 10 L/min 
B) 15 L/min 
C) 50 L/min 
D) 100 L/min 
A) 10 L/min 
B) 15 L/min 
C) 50 L/min 
D) 100 L/min

Question 17

Which of the following statements is FALSE about PISS standards?

Accepted Answer

A) The exact positions of pins and pinholes do not vary for each gas. 
B) In order to work, the yoke nipple has to seat in the recessed valve outlet. 
C) They apply only to cylinders using a yoke connection (A-
E) . 
D) They have 6 pin positions and 10 possible pin/hole combinations. 
A) The exact positions of pins and pinholes do not vary for each gas. 
B) In order to work, the yoke nipple has to seat in the recessed valve outlet. 
C) They apply only to cylinders using a yoke connection (A-
E) . 
D) They have 6 pin positions and 10 possible pin/hole combinations.

Question 18

If you have to deliver medical gas to a patient from a compressed gas cylinder, which of the following devices would you select to control gas flow?

Accepted Answer

A) regulator 
B) oxygen blender 
C) reducing valve 
D) flowmeter 
A) regulator 
B) oxygen blender 
C) reducing valve 
D) flowmeter

Question 19

Which of the following is FALSE about a compensated Thorpe tube?

Accepted Answer

A) variable-orifice, constant-pressure flowmeter device 
B) calibrated in L/min at atmospheric pressure 
C) flow-control needle valve placed distal to the flow tube 
D) accuracy unaffected by changes in downstream resistance 
A) variable-orifice, constant-pressure flowmeter device 
B) calibrated in L/min at atmospheric pressure 
C) flow-control needle valve placed distal to the flow tube 
D) accuracy unaffected by changes in downstream resistance

Question 20

When used to control the flow of medical gases to a patient, how is a flow restrictor classified?

Accepted Answer

A) variable-orifice, constant-pressure flowmeter device 
B) fixed-orifice, variable-pressure flowmeter device 
C) variable-orifice, variable-pressure flowmeter device 
D) fixed-orifice, constant-pressure flowmeter device 
A) variable-orifice, constant-pressure flowmeter device 
B) fixed-orifice, variable-pressure flowmeter device 
C) variable-orifice, variable-pressure flowmeter device 
D) fixed-orifice, constant-pressure flowmeter device

Exam 37: Storage and Delivery of Medical Gases

Which of the following statements about He is false?

When using a Bourdon gauge against high outflow resistance, what will the flowmeter reading show?

You are planning a patient transport that will take about 1 12\frac { 1 } { 2 }21​ hours. The patient requires manual ventilation with 10 L/min of O2. What is the minimum number of full E cylinders you would take with you?

Why are zone valves incorporated into a hospital's central gas piping systems? I.to terminate O2 delivery to an area in case of fire II.to allow selective maintenance without shutting the system down III.to allow variable pressure reduction throughout the system

To clean a cylinder valve outlet of foreign material, what should you do?

A very common application of the adjustable pressure-reducing valve is in combination with which of the following?

What safety system is designed to prevent accidental interchanging among low-pressure (less than 200 psig) connectors such as those found on flowmeters and ventilators?

Air for medical use in a hospital should be which of the following? I.particle-free II.oil-free III.dry

By what means is air for medical use in a hospital most commonly produced?

How can one determine whether a pressure-reducing valve uses multiple stages for pressure reduction?

The measured pressure in a gas-filled cylinder is equivalent to which of the following?

Under what conditions will the gauge pressure of a cylinder of N2O accurately represent its contents? I.when the liquid in the cylinder has completely vaporized II.when the ambient temperature exceeds the critical temperature III.when the filling density is less than 1.0 (water-filled)

You are preparing to conduct a complex transport of a patient receiving O2, and you expect to have to alter O2 flows during the transport. Which of the following devices would best meet your needs?

Which of the following methods of producing O2 is commonly used in the home care setting?

Large hospital air compressor systems must be capable of maintaining 50 pounds per square inch gauge (psig) at what flows?

Which of the following statements is FALSE about PISS standards?

If you have to deliver medical gas to a patient from a compressed gas cylinder, which of the following devices would you select to control gas flow?

Which of the following is FALSE about a compensated Thorpe tube?

When used to control the flow of medical gases to a patient, how is a flow restrictor classified?

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

Medical Gas Therapy

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

You are planning a patient transport that will take about 1 $\frac { 1 } { 2 }$ hours. The patient requires manual ventilation with 10 L/min of O₂. What is the minimum number of full E cylinders you would take with you?

Why are zone valves incorporated into a hospital's central gas piping systems? I.to terminate O₂delivery to an area in case of fire II.to allow selective maintenance without shutting the system down III.to allow variable pressure reduction throughout the system

Under what conditions will the gauge pressure of a cylinder of N₂O accurately represent its contents? I.when the liquid in the cylinder has completely vaporized II.when the ambient temperature exceeds the critical temperature III.when the filling density is less than 1.0 (water-filled)

You are preparing to conduct a complex transport of a patient receiving O₂, and you expect to have to alter O₂ flows during the transport. Which of the following devices would best meet your needs?

Which of the following methods of producing O₂ is commonly used in the home care setting?