Equipment Operation - Flash Cards

Question 1

The polarographic sensor measures ___

Answer 1

Oxygen.

There are 2 O’s in polarographic (O2)

Question 2

Infrared absorption analyzer measures ___, ___, and ___

Answer 2

Carbon monoxide
Carbon dioxide
Methane

Question 3

The Geissler tube ionizer measures ___

Answer 3

Nitrogen

Question 4

Thermal conductivity mesures ___ (an inert gas) and is also know as the ___ ___.

Answer 4

Helium.
Known as the “wheatstone bridge”

Helium is inert and safe to use with heat.

Question 5

A “chopper motor” is a part of what type of analyzer

Answer 5

Infrared absorption analyzer

Question 6

This electrode measures CO2 in blood gas analyzers.

Answer 6

Severinghaus electrode

Question 7

This electrode measures O2 in blood gas analyzers, and is known for being the “most troublesome electrode”.

Answer 7

Clark

Question 8

Word association:

The following words are associated with the ___ electrode, which measures O2.

Platinum
Polypropylene
Polarizing
Pumice

It is also troublesome when used with a Mylar membrane.

Answer 8

Clark

Question 9

This electrode measures pH in blood gas analyzers, and requires a KCl buffer solution.

Answer 9

Sanz

Question 10

How many electrodes are in the Sanz electrode?

Answer 10

Two. The reference electrode and measuring electrode

Question 11

With the Sanz electrode, what two steps should you use to troubleshoot “unstable”, “noisy” or “erratic” readings?

Answer 11

1. Always check the tank levels first.
2. Replace the membranes.
   * if the question states that you keep getting consistent unstable readings, the membrane needs to be replaced.

Note: Sanz electrode measures pH.

Question 12

Calcium sulfate (aka Drierite) is a ___.

Answer 12

Desiccant. It removes water vapor from the gas.

Question 13

Name 2 CO2 scrubbers used in pulmonary function testing.

Answer 13

Barium hydroxide

Sodium hydroxide

Question 14

Name the “preferred” oxygen analyzer used in PFT’s.

What is the low and high calibration point for Fio2?

What is the low and high calibration point for exercise testing?

Answer 14

Galvanic fuel cell/Zirconium fuel cell

Fio2: 21% - 100%

Exercise testing (Feo2): 12% - 21%

Question 15

This is a method used for quality control of blood gas analyzers.

*it is a device that allows precise gas mixtures to be equilibrated with a buffer solution or whole blood samples.

Answer 15

Tonometry

Question 16

All breathing valves should have these 4 features.

Answer 16

low deadspace
low resistance
low compliance
easy to clean

Question 17

A sine wave rotary pump is used to calibrate this piece of PFT equipment.

Answer 17

Body box (body plethysmograph)

Question 18

At what heart rate should you stop a SVN treatment?

An increase in ___ bpm or more is considered an adverse reaction to an SVN tx.

Answer 18

Stop tx at 100 bpm

> 20 bpm is considered an adverse reaction.

Question 19

True or False:

A body box FRC will be larger than that of a helium diution or nitrogen washout test, because it includes trapped gas.

Answer 19

True.

Question 20

Body box calibration will involve:

Mouth pressure verification with a ___

Flow verification with a ___

Box pressure calibration with a ___ ___ ___ ___

Answer 20

Barometer (mercury or water)

Rotameter

Sine-wave rotary pump

Question 21

True or False:

The body box is the most accurate way to measure air trapping and FRC in patients with obstructive lung disease.

Answer 21

True

Question 22

When should you use an arm ergometer for exercise testing

Answer 22

When the patient is unable to perform leg exercise (no legs, leg injury, etc)

Question 23

What is the most common tool used for exercising the patient? Is it considered the best method?

Answer 23

Treadmill

No

Question 24

What exercise equipment would you recommend for a patient who is obese or is a fall risk on the treadmill?

Answer 24

Leg ergometer (stationary bicycle)

Question 25

What is the best ECG limb lead? Which limb does the negative electrode go on?

Answer 25

Lead II. Negative electrode goes on the right arm.

Question 26

What is the best ECG chest lead?

Answer 26

V5. It sits on top of the left ventricle.

Question 27

This is a common troubleshooting question: If an alarm is activated on an air/oxygen proportioner (blender), what is most likely to be the problem? What should you do?

Answer 27

Low inlet pressure (< 40 psi) You should check the gas source pressure.

Question 28

A water barometer is also known as a?

Answer 28

U-tube.

Question 29

What is the difference between disinfection and sterilization?

Answer 29

Disinfection kills pathogenic organisms. Sterilization kills everything.

Question 30

True or False: "Physical methods" of disinfection and sterilization such as Steam autoclave Pasteurization Incineration Irradiation are not as effective as "chemical methods" such as ``` ethylene oxide alkaline glutaraldehyde (Cidex). ```

Answer 30

True. Chemical methods are alway the better choice.

Question 31

What chemical should you use to clean blood spills?

Answer 31

Bleach

Question 32

Which chemical is best to use when sterilizing equipment (especially delicate/sensitive equipment) if cost is not a factor?

Answer 32

Ethylene oxide

Question 33

Which chemical is considered the next best option for disinfection/sterilization if ethylene oxide is not available, or costs is a factor?

Answer 33

Alkaline gluteraldehyde (Cidex)

Question 34

What two pieces of equipment should be available when performing cardiopulmonary stress testing?

Answer 34

Crash cart | Defibrillator