Question 1

The NFPA standard for bulk liquid O2 systems requires that the reserve supply be which of the following?

Accepted Answer

A)  Fixed cylinder bank of 75 H cylinders 
B)  At least one large liquid O2 cylinder 
C)  Equal to the average gas use of 1 day 
D)  At least 3000 cu/ft of gaseous O2 
A)  Fixed cylinder bank of 75 H cylinders 
B)  At least one large liquid O2 cylinder 
C)  Equal to the average gas use of 1 day 
D)  At least 3000 cu/ft of gaseous O2

Question 2

Cylinders of liquid gases are filled according to what specification?

Accepted Answer

A)  Filling density 
B)  Critical weight 
C)  Elastic expansion 
D)  Filling pressure 
A)  Filling density 
B)  Critical weight 
C)  Elastic expansion 
D)  Filling pressure

Question 3

During inspection of the shoulder of a compressed gas cylinder, you note an asterisk (*) next to the test date. This indicates what about the cylinder?

Accepted Answer

A)  It is made of spun aluminum, not steel. 
B)  It only requires a 10-year DOT testing. 
C)  It can be filled to 10% above its service pressure. 
D)  It has a high coefficient of elastic expansion. 
A)  It is made of spun aluminum, not steel. 
B)  It only requires a 10-year DOT testing. 
C)  It can be filled to 10% above its service pressure. 
D)  It has a high coefficient of elastic expansion.

Question 4

When full, a gas cylinder registers a pressure of 2200 psig. After a few hours of use, the pressure gauge reads 550 psig. The cylinder is now how full?

Accepted Answer

A)  One-half 
B)  One-third 
C)  One-fourth 
D)  Two-thirds 
A)  One-half 
B)  One-third 
C)  One-fourth 
D)  Two-thirds

Question 5

To accurately determine the remaining contents of a liquid-filled CO2 cylinder, what would you do?

Accepted Answer

A)  Multiply the pressure by the cylinder factor. 
B)  Divide the pressure by the cylinder factor. 
C)  Weigh the contents of the cylinder. 
D)  Empty the cylinder while timing its flow. 
A)  Multiply the pressure by the cylinder factor. 
B)  Divide the pressure by the cylinder factor. 
C)  Weigh the contents of the cylinder. 
D)  Empty the cylinder while timing its flow.

Question 6

Which of the following medical gases can be stored in cylinders as liquids at room temperature?
1) CO2
2) O2
3) N2O

Accepted Answer

A) 1 only 
B) 1 and 2 only 
C) 1 and 3 only 
D) 1, 2, and 3 
A) 1 only 
B) 1 and 2 only 
C) 1 and 3 only 
D) 1, 2, and 3

Question 7

What is the pin index hole position for O2?

Accepted Answer

A)  1 and 5 
B)  2 and 5 
C)  1 and 6 
D)  4 and 6 
A)  1 and 5 
B)  2 and 5 
C)  1 and 6 
D)  4 and 6

Question 8

Department of Transportation (DOT) regulations require compressed gas cylinders to be hydrostatically tested for leaks and expansion every how often?

Accepted Answer

A)  1 to 2 years 
B)  3 to 5 years 
C)  6 to 8 years 
D)  5 to 10 years 
A)  1 to 2 years 
B)  3 to 5 years 
C)  6 to 8 years 
D)  5 to 10 years

Question 9

Which device is used to reduce the pressure and control the flow of a compressed medical gas?

Accepted Answer

A)  Bourdon gauge 
B)  Regulator 
C)  Flowmeter 
D)  Reducing valve 
A)  Bourdon gauge 
B)  Regulator 
C)  Flowmeter 
D)  Reducing valve

Question 10

Which of the following statements about CO2 are true?
1) It does not support animal life.
2) It is a flammable gas.
3) It is odorless and colorless.
4) It is heavier than air.

Accepted Answer

A) 1 and 3 only 
B) 2 and 3 only 
C) 3 and 4 only 
D) 1, 3, and 4 only 
A) 1 and 3 only 
B) 2 and 3 only 
C) 3 and 4 only 
D) 1, 3, and 4 only

Question 11

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 12

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)  O2 blender 
C)  Reducing valve 
D)  Flowmeter 
A)  Regulator 
B)  O2 blender 
C)  Reducing valve 
D)  Flowmeter

Question 13

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 and 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 and then close the valve. 
C)  Blow into the valve outlet a few times. 
D)  Wipe the valve outlet with an alcohol swab.

Question 14

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 15

Which of the following components are common to a standard compressed gas cylinder manifold system?
1) Automatic switch-over control
2) Pressure-reducing valves
3) Primary and reserve bank
4) Alarm system

Accepted Answer

A) 1, 2, and 3 only 
B) 2 and 4 only 
C) 3 and 4 only 
D) 1, 2, 3, and 4 
A) 1, 2, and 3 only 
B) 2 and 4 only 
C) 3 and 4 only 
D) 1, 2, 3, and 4

Question 16

What is the most common and least expensive method for commercial production of O2?

Accepted Answer

A)  Electrolysis of water 
B)  Fractional distillation of air 
C)  Physical separation by molecular sieves 
D)  Chemical decomposition of sodium chlorate 
A)  Electrolysis of water 
B)  Fractional distillation of air 
C)  Physical separation by molecular sieves 
D)  Chemical decomposition of sodium chlorate

Question 17

What is the usual method of monitoring the remaining contents in a gas-filled cylinder?

Accepted Answer

A)  Weigh the cylinder. 
B)  Read the pressure gauge. 
C)  Compute the gas density. 
D)  Read the cylinder label. 
A)  Weigh the cylinder. 
B)  Read the pressure gauge. 
C)  Compute the gas density. 
D)  Read the cylinder label.

Question 18

Which of the following are true about a Bourdon gauge?
1) It is always used with an adjustable high-pressure reducing valve.
2) It actually senses pressure but is calibrated to display flow.
3) It reads a flow higher than actual if downstream pressure increases.
4) It will register zero flow when the outlet is completely blocked.

Accepted Answer

A) 1 and 3 only 
B) 1, 2, and 3 only 
C) 3 and 4 only 
D) 2, 3, and 4 only 
A) 1 and 3 only 
B) 1, 2, and 3 only 
C) 3 and 4 only 
D) 2, 3, and 4 only

Exam 40: Storage and Delivery of Medical Gases

The NFPA standard for bulk liquid O2 systems requires that the reserve supply be which of the following?

Cylinders of liquid gases are filled according to what specification?

During inspection of the shoulder of a compressed gas cylinder, you note an asterisk (*) next to the test date. This indicates what about the cylinder?

When full, a gas cylinder registers a pressure of 2200 psig. After a few hours of use, the pressure gauge reads 550 psig. The cylinder is now how full?

To accurately determine the remaining contents of a liquid-filled CO2 cylinder, what would you do?

Which of the following medical gases can be stored in cylinders as liquids at room temperature? 1) CO2 2) O2 3) N2O

What is the pin index hole position for O2?

Department of Transportation (DOT) regulations require compressed gas cylinders to be hydrostatically tested for leaks and expansion every how often?

Which device is used to reduce the pressure and control the flow of a compressed medical gas?

Which of the following statements about CO2 are true? 1) It does not support animal life. 2) It is a flammable gas. 3) It is odorless and colorless. 4) It is heavier than air.

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

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?

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

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 components are common to a standard compressed gas cylinder manifold system? 1) Automatic switch-over control 2) Pressure-reducing valves 3) Primary and reserve bank 4) Alarm system

What is the most common and least expensive method for commercial production of O2?

What is the usual method of monitoring the remaining contents in a gas-filled cylinder?

History of Respiratory Care

Delivering Evidence-Based Respiratory Care

Quality, Patient Safety, and Communication, and Recordkeeping

Principles of Infection Prevention and Control

Ethical and Legal Implications of Practice

Physical Principles of Respiratory Care

E-Medicine in Respiratory Care

Fundamentals of Respiratory Care Research

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

Interpreting Clinical and Laboratory Data

Interpreting the Electrocardiogram

Analysis and Monitoring of Gas Exchange

Pulmonary Function Testing

Review of Thoracic Imaging

Flexible Bronchoscopy and the Respiratory Therapist

Nutrition Assessment

Pulmonary Infections

Obstructive Lung Disease: Chronic Obstructive Pulmonary Disease Copd, Asthma, and Related Diseases

Interstitial Lung Disease

Pleural Diseases

Pulmonary Vascular Disease

Acute Respiratory Distress Syndrome

Trauma, Burns and Near Drowning

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

Airway Clearance Therapy Act

Respiratory Failure and the Need for Ventilatory Support

Mechanical Ventilators

Physiology of Ventilatory Support

Patient Ventilator Interaction

Initiating and Adjusting Invasive Ventilatory Support

Noninvasive Ventilation

Extracorporeal Life Support Ecls

Monitoring 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

The NFPA standard for bulk liquid O₂ systems requires that the reserve supply be which of the following?

To accurately determine the remaining contents of a liquid-filled CO₂ cylinder, what would you do?

Which of the following medical gases can be stored in cylinders as liquids at room temperature? 1) CO₂ 2) O₂ 3) N₂O

What is the pin index hole position for O₂?

Which of the following statements about CO₂ are true? 1) It does not support animal life. 2) It is a flammable gas. 3) It is odorless and colorless. 4) It is heavier than air.

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

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?

What is the most common and least expensive method for commercial production of O₂?