Chapter 03: Manufacture, Storage, and Transport of Medical Gases

Chapter 03: Manufacture, Storage, and Transport of Medical Gases

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. Which of the following gases support combustion?

Air

Oxygen

Helium

Carbon Dioxide

 

a.	2 only	c.	2, 3
b.	1, 2	d.	1, 3, 4

 

 

ANS:  B

Oxygen and air support combustion.  Helium and carbon dioxide are not flammable

 

PTS:   1                    REF:   Page 57, Table 3-2

 

2. Which of the following gases is the least dense?

a.	Carbon dioxide	c.	Helium
b.	Nitrous oxide	d.	Air

 

 

ANS:  C

Helium is the second-lightest element, with a density of 0.165 kg/m³ at 21.1° C and 1 atmospheric pressure (atm). Oxygen is slightly heavier than air, with a density of 1.326 kg/m³ at 21.1° C and 760 mm Hg.

 

PTS:   1                    REF:   Page 57, Table 3-3

 

3. Which gas has been used successfully in the treatment of pulmonary hypertension of the newborn?

a.	Oxygen	c.	Nitrous oxide
b.	Nitric oxide	d.	Helium-oxygen mixture

 

 

ANS:  B

At very low concentrations (2 to 80 parts per million) combined with oxygen, nitric oxide has been used to successfully treat persistent pulmonary hypertension of the newborn. Nitrous oxide is used as a central nervous system depressant (anesthetic). Helium-oxygen mixtures decrease the work of breathing by decreasing turbulent airflow.

 

PTS:   1                    REF:   Page 56

 

4. In high concentrations, which of the following gases is a potent anesthetic?

a.	Nitric oxide	c.	Carbon dioxide
b.	Nitrous oxide	d.	Helium-oxygen mixture

 

 

ANS:  B

The major use for nitrous oxide is a central nervous system depressant. As such, it is a potent anesthetic when administered in high concentrations. At very low concentrations (2 to 80 parts per million) combined with oxygen, nitric oxide has been used successfully to treat persistent pulmonary hypertension of the newborn. Carbon dioxide is nonflammable, but it supports combustion. Helium-oxygen mixtures decrease the work of breathing by decreasing turbulent airflow.

 

PTS:   1                    REF:   Page 56

 

5. Which of the following gases is used to decrease the work of breathing associated with severe airway obstruction?

a.	Nitric oxide	c.	Helium-oxygen mixture
b.	Nitrous oxide	d.	Carbon dioxide–oxygen mixture

 

 

ANS:  C

A helium-oxygen mixture decreases the work of breathing by decreasing turbulent airflow.

 

PTS:   1                    REF:   Page 56