Question 1

Normal plasma bicarbonate levels are _____ mmol/L.

Accepted Answer

A)  15 to 25 
B)  22 to 26 
C)  30 to 40 
D)  44 to 48 
A)  15 to 25 
B)  22 to 26 
C)  30 to 40 
D)  44 to 48

Question 2

If the PCO₂ of an arterial blood sample is 60 mm Hg,the expected pH is:

Accepted Answer

A)  7.20. 
B)  7.30. 
C)  7.50. 
D)  7.60. 
A)  7.20. 
B)  7.30. 
C)  7.50. 
D)  7.60.

Question 3

Fractional hemoglobin saturation is calculated from values measured by which of the following?

Accepted Answer

A)  Pulse oximeter 
B)  CO-oximeter 
C)  Clark electrode 
D)  Severinghaus electrode 
A)  Pulse oximeter 
B)  CO-oximeter 
C)  Clark electrode 
D)  Severinghaus electrode

Question 4

Which size of needle should be used to draw arterial blood from an adult?

Accepted Answer

A)  22 gauge 
B)  24 gauge 
C)  26 gauge 
D)  28 gauge 
A)  22 gauge 
B)  24 gauge 
C)  26 gauge 
D)  28 gauge

Question 5

What type of instrument could be used to analyze pH,PO₂,PCO₂,and various electrolytes at the patient's bedside?

Accepted Answer

A)  Point-of-care blood gas analyzer 
B)  CO-oximeter 
C)  Potentiometer 
D)  Capnograph 
A)  Point-of-care blood gas analyzer 
B)  CO-oximeter 
C)  Potentiometer 
D)  Capnograph

Question 6

Quality control includes which of the following?
1)Analyzing unknown samples and submitting to the sponsoring organization
2)Assessing control sample measurements against defined limits
3)Addressing problems through corrective actions
4)Identifying problems

Accepted Answer

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

Question 7

Standard bicarbonate is calculated by use of which of the following?

Accepted Answer

A)  Henderson-Hasselbalch equation 
B)  Two-point calibration method 
C)  Lambert-Beer law equation 
D)  Levy-Jennings chart 
A)  Henderson-Hasselbalch equation 
B)  Two-point calibration method 
C)  Lambert-Beer law equation 
D)  Levy-Jennings chart

Question 8

Which of the following plasma electrolyte levels are outside the normal range?
1)Total calcium 7.4 mEq/L
2)Magnesium 2.0 mEq/L
3)Potassium 4.2 mEq/L
4)Chloride 115 mEq/L
5)Sodium 175 mEq/L

Accepted Answer

A)  1,4,and 5 
B)  3,4,and 5 
C)  2,3,and 4 
D)  1 
A)  1,4,and 5 
B)  3,4,and 5 
C)  2,3,and 4 
D)  1

Question 9

What organizations offer proficiency testing programs?
1)The Joint Commission on Accreditation of Healthcare Organizations (JCAHO)
2)The American Association for Respiratory Care (AARC)
3)The American College of Chest Physicians (ACCP)
4)The College of American Pathologists (CAP)
5)The American Thoracic Society (ATS)

Accepted Answer

A)  4 and 5 
B)  3 and 5 
C)  1,2,and 3 
D)  1,4,and 5 
A)  4 and 5 
B)  3 and 5 
C)  1,2,and 3 
D)  1,4,and 5

Question 10

What is the correct interpretation of the following arterial blood gas values: pH = 7.36; PaCO₂ = 65 mm Hg; and HCO₃- = 35 mEq/L?

Accepted Answer

A)  Chronic respiratory acidosis 
B)  Chronic metabolic alkalosis 
C)  Acute respiratory acidosis 
D)  Acute metabolic acidosis 
A)  Chronic respiratory acidosis 
B)  Chronic metabolic alkalosis 
C)  Acute respiratory acidosis 
D)  Acute metabolic acidosis

Question 11

Which of the following statements is true concerning quality control of a blood gas analyzer?

Accepted Answer

A)  Commercially prepared controls ensure instrument accuracy. 
B)  A Levy-Jennings chart is used to record quality control data. 
C)  Protein buildup on electrodes will not cause errors in the instrument. 
D)  Commercial controls are not susceptible to variations at room temperature. 
A)  Commercially prepared controls ensure instrument accuracy. 
B)  A Levy-Jennings chart is used to record quality control data. 
C)  Protein buildup on electrodes will not cause errors in the instrument. 
D)  Commercial controls are not susceptible to variations at room temperature.

Question 12

Which of the following is a buffer base?

Accepted Answer

A)  A metabolite solution 
B)  An electrolyte-specific solution 
C)  The solution used to perform a three-point calibration 
D)  Consists of hemoglobin, inorganic phosphate, and negatively charged proteins 
A)  A metabolite solution 
B)  An electrolyte-specific solution 
C)  The solution used to perform a three-point calibration 
D)  Consists of hemoglobin, inorganic phosphate, and negatively charged proteins

Question 13

Which of the following would create the highest P₅₀?

Accepted Answer

A)  pH = 7.40 
B)  pH = 7.50 
C)  PCO₂ = 40 mm Hg 
D)  PCO₂ = 60 mm Hg 
A)  pH = 7.40 
B)  pH = 7.50 
C)  PCO₂ = 40 mm Hg 
D)  PCO₂ = 60 mm Hg

Question 14

A CO-oximeter identifies the different types of hemoglobin through the use of:

Accepted Answer

A)  fiberoptics. 
B)  spectrophotometry. 
C)  optical plethysmography. 
D)  potentiometric measurements. 
A)  fiberoptics. 
B)  spectrophotometry. 
C)  optical plethysmography. 
D)  potentiometric measurements.

Question 15

A P₅₀ measurement refers to which of the following?

Accepted Answer

A)  The amount of oxygen diffusion in fluids 
B)  The PO₂ when hemoglobin is 50% saturated with oxygen 
C)  The partial pressure of fetal hemoglobin at 50% saturation 
D)  The partial pressure of oxygen consumed by the oxygen electrode 
A)  The amount of oxygen diffusion in fluids 
B)  The PO₂ when hemoglobin is 50% saturated with oxygen 
C)  The partial pressure of fetal hemoglobin at 50% saturation 
D)  The partial pressure of oxygen consumed by the oxygen electrode

Question 16

Which of the following will decrease oxygen's affinity for hemoglobin?

Accepted Answer

A)  Increased CO₂ 
B)  Acute alkalosis 
C)  Methemoglobin 
D)  Hypothermia 
A)  Increased CO₂ 
B)  Acute alkalosis 
C)  Methemoglobin 
D)  Hypothermia

Normal plasma bicarbonate levels are _____ mmol/L.

If the PCO₂ of an arterial blood sample is 60 mm Hg,the expected pH is:

Fractional hemoglobin saturation is calculated from values measured by which of the following?

Which size of needle should be used to draw arterial blood from an adult?

What type of instrument could be used to analyze pH,PO₂,PCO₂,and various electrolytes at the patient's bedside?

Quality control includes which of the following? 1)Analyzing unknown samples and submitting to the sponsoring organization 2)Assessing control sample measurements against defined limits 3)Addressing problems through corrective actions 4)Identifying problems

Standard bicarbonate is calculated by use of which of the following?

Which of the following plasma electrolyte levels are outside the normal range? 1)Total calcium 7.4 mEq/L 2)Magnesium 2.0 mEq/L 3)Potassium 4.2 mEq/L 4)Chloride 115 mEq/L 5)Sodium 175 mEq/L

What is the correct interpretation of the following arterial blood gas values: pH = 7.36; PaCO₂ = 65 mm Hg; and HCO₃- = 35 mEq/L?

Which of the following statements is true concerning quality control of a blood gas analyzer?

Which of the following is a buffer base?

Which of the following would create the highest P₅₀?

A CO-oximeter identifies the different types of hemoglobin through the use of:

A P₅₀ measurement refers to which of the following?

Which of the following will decrease oxygen's affinity for hemoglobin?

Basic Physics for the Respiratory Therapist

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Administering Medical Gases: Regulators, Flowmeters, and

Airway Management Devices and Advanced Cardiac Life Support

Humidity and Aerosol Therapy

Lung Expansion Therapy Devices

Assessment of Pulmonary Function

Assessment of Cardiovascular Function

Sleep Diagnostics

Introduction to Ventilators

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

Filters

Exam 10: Blood Gas Monitoring

Normal plasma bicarbonate levels are _____ mmol/L.

If the PCO₂ of an arterial blood sample is 60 mm Hg,the expected pH is:

Fractional hemoglobin saturation is calculated from values measured by which of the following?

Which size of needle should be used to draw arterial blood from an adult?

What type of instrument could be used to analyze pH,PO₂,PCO₂,and various electrolytes at the patient's bedside?

Quality control includes which of the following? 1)Analyzing unknown samples and submitting to the sponsoring organization 2)Assessing control sample measurements against defined limits 3)Addressing problems through corrective actions 4)Identifying problems

Standard bicarbonate is calculated by use of which of the following?

Which of the following plasma electrolyte levels are outside the normal range? 1)Total calcium 7.4 mEq/L 2)Magnesium 2.0 mEq/L 3)Potassium 4.2 mEq/L 4)Chloride 115 mEq/L 5)Sodium 175 mEq/L

What is the correct interpretation of the following arterial blood gas values: pH = 7.36; PaCO₂ = 65 mm Hg; and HCO₃- = 35 mEq/L?

Which of the following statements is true concerning quality control of a blood gas analyzer?

Which of the following is a buffer base?

Which of the following would create the highest P₅₀?

A CO-oximeter identifies the different types of hemoglobin through the use of:

A P₅₀ measurement refers to which of the following?

Which of the following will decrease oxygen's affinity for hemoglobin?

Basic Physics for the Respiratory Therapist

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Administering Medical Gases: Regulators, Flowmeters, and

Airway Management Devices and Advanced Cardiac Life Support

Humidity and Aerosol Therapy

Lung Expansion Therapy Devices

Assessment of Pulmonary Function

Assessment of Cardiovascular Function

Sleep Diagnostics

Introduction to Ventilators

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

Filters