During capnography monitoring of a mechanically ventilated patient, you note that the PETCO2 has dropped to 0 mm Hg. All of the following are possible causes of this finding except:

A) ventilator disconnection B) esophageal intubation C) increased cardiac output D) cardiac arrest A) ventilator disconnection B) esophageal intubation C) increased cardiac output D) cardiac arrest

What is a normal end-tidal PETCO2 range?

A) 30 to 38 mm Hg B) 35 to 43 mm Hg C) 38 to 46 mm Hg D) 42 to 50 mm Hg A) 30 to 38 mm Hg B) 35 to 43 mm Hg C) 38 to 46 mm Hg D) 42 to 50 mm Hg

How does the Clark polarographic O2 electrode function?

A) measures the magnetic properties of O2 versus N2 B) measures the electrical potential across a Wheatstone bridge C) uses O2 to produce a reduction-oxidation reaction D) measures the comparative cooling effect on a heated wire A) measures the magnetic properties of O2 versus N2 B) measures the electrical potential across a Wheatstone bridge C) uses O2 to produce a reduction-oxidation reaction D) measures the comparative cooling effect on a heated wire

Exam 18: Analysis and Monitoring of Gas Exchange

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Which of the following are TRUE about a blood gas analyzer's waste fluids? I.A strong disinfectant should be added to waste fluid containers. II.Waste fluids should be handled as if they were blood samples. III.Waste fluids should be treated as potentially infectious.

(Multiple Choice)

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Question 101

During capnography monitoring of a mechanically ventilated patient, you note that the PETCO₂ has dropped to 0 mm Hg. All of the following are possible causes of this finding except:

(Multiple Choice)

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Question 102

When performing a modified Allen test on the left hand of a patient, you notice that the palm, fingers, and thumb remain blanched for more than 15 seconds after pressure on the ulnar artery is released. What should you do?

(Multiple Choice)

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Question 103

What is a normal end-tidal PETCO₂ range?

(Multiple Choice)

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Question 104

To assess gas exchange at the tissues, you would obtain a blood sample from which of the following?

(Multiple Choice)

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Question 105

What size needle would you recommend to obtain an ABG sample through percutaneous puncture of an infant?

(Multiple Choice)

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Question 106

What media are used to calibrate a blood gas analyzer's gas electrodes?

(Multiple Choice)

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Question 107

All of the following are grounds for finding an alternative site for arterial puncture except:

(Multiple Choice)

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Question 108

An alert outpatient awaiting bronchoscopy has an SpO₂ reading of 81% breathing room air. The patient appears in no distress and exhibits no signs of hypoxemia. Which of the following would be the best initial action to take in this situation?

(Multiple Choice)

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Question 109

You must immediately begin monitoring the oxygenation status of an infant admitted to the emergency department in severe respiratory distress. Which of the following approaches would you select?

(Multiple Choice)

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Question 110

A PaO₂ below what value would be considered severe hypoxemia?

(Multiple Choice)

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Question 111

How does the Clark polarographic O₂ electrode function?

(Multiple Choice)

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Question 112

What chart information should be checked before performing artery puncture? I.patient's primary diagnosis and history II.presence of bleeding disorders or blood-borne infections III.anticoagulant or thrombolytic drug prescriptions IV.respiratory care orders (e.g., O₂ therapy)

(Multiple Choice)

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Question 113

When analyzing a blood gas control sample, you notice that the result falls outside the 2 SD range. How could you verify that this was a random error (error of imprecision)? I.Repeat the analysis on a different analyzer. II.Compare the control to an actual patient sample. III.Rerun the control sample a second time.

(Multiple Choice)

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Question 114

An outpatient scheduled for an arterial blood sample enters the pulmonary lab 20 minutes late and out of breath, having run up four flights of stairs. What should you do?

(Multiple Choice)

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Question 115

Precautions and/or possible complications of arterial puncture include which of the following? I.arteriospasm II.embolization III.infection IV.hemorrhage

(Multiple Choice)

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Question 116

Capillary puncture should NOT be performed at or through what location? I.inflamed or edematous tissue II.localized areas of infection III.the fingers of neonates IV.previous puncture sites

(Multiple Choice)

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Question 117

All of the following are advantages of mainstream capnometry except:

(Multiple Choice)

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Question 118

A mixed venous blood sample obtained from a pulmonary artery catheter sample has a PO₂ of 85 mm Hg and a hemoglobin saturation of 95%. Which of the following is likely? I.The pulmonary artery catheter balloon was not deflated. II.The sample was drawn from the proximal, not distal port. III.The blood sample was withdrawn too quickly.

(Multiple Choice)

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Question 119

While analyzing a blood gas control sample, you notice a trending of several PCO₂ values above the 2 SD range over the last six control samples run. What corrective action would you consider at this time? I.Check the function of the PCO₂ electrode. II.Rerun the control sample a second time. III.Repair or replace any failed components.

(Multiple Choice)

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Question 120

Showing 101 - 120 of 125

Exam 18: Analysis and Monitoring of Gas Exchange

Which of the following are TRUE about a blood gas analyzer's waste fluids? I.A strong disinfectant should be added to waste fluid containers. II.Waste fluids should be handled as if they were blood samples. III.Waste fluids should be treated as potentially infectious.

During capnography monitoring of a mechanically ventilated patient, you note that the PETCO2 has dropped to 0 mm Hg. All of the following are possible causes of this finding except:

When performing a modified Allen test on the left hand of a patient, you notice that the palm, fingers, and thumb remain blanched for more than 15 seconds after pressure on the ulnar artery is released. What should you do?

What is a normal end-tidal PETCO2 range?

To assess gas exchange at the tissues, you would obtain a blood sample from which of the following?

What size needle would you recommend to obtain an ABG sample through percutaneous puncture of an infant?

What media are used to calibrate a blood gas analyzer's gas electrodes?

All of the following are grounds for finding an alternative site for arterial puncture except:

An alert outpatient awaiting bronchoscopy has an SpO2 reading of 81% breathing room air. The patient appears in no distress and exhibits no signs of hypoxemia. Which of the following would be the best initial action to take in this situation?

You must immediately begin monitoring the oxygenation status of an infant admitted to the emergency department in severe respiratory distress. Which of the following approaches would you select?

A PaO2 below what value would be considered severe hypoxemia?

How does the Clark polarographic O2 electrode function?

What chart information should be checked before performing artery puncture? I.patient's primary diagnosis and history II.presence of bleeding disorders or blood-borne infections III.anticoagulant or thrombolytic drug prescriptions IV.respiratory care orders (e.g., O2 therapy)

An outpatient scheduled for an arterial blood sample enters the pulmonary lab 20 minutes late and out of breath, having run up four flights of stairs. What should you do?

Precautions and/or possible complications of arterial puncture include which of the following? I.arteriospasm II.embolization III.infection IV.hemorrhage

Capillary puncture should NOT be performed at or through what location? I.inflamed or edematous tissue II.localized areas of infection III.the fingers of neonates IV.previous puncture sites

All of the following are advantages of mainstream capnometry except:

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

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

Storage and Delivery of Medical Gases

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

During capnography monitoring of a mechanically ventilated patient, you note that the PETCO₂ has dropped to 0 mm Hg. All of the following are possible causes of this finding except:

What is a normal end-tidal PETCO₂ range?

An alert outpatient awaiting bronchoscopy has an SpO₂ reading of 81% breathing room air. The patient appears in no distress and exhibits no signs of hypoxemia. Which of the following would be the best initial action to take in this situation?

A PaO₂ below what value would be considered severe hypoxemia?

How does the Clark polarographic O₂ electrode function?

What chart information should be checked before performing artery puncture? I.patient's primary diagnosis and history II.presence of bleeding disorders or blood-borne infections III.anticoagulant or thrombolytic drug prescriptions IV.respiratory care orders (e.g., O₂ therapy)