What happens in chronic hypercapnia? I.The central chemoreceptive response to CO2 is decreased. II.The cerebrospinal fluid pH is restored to normal. III.Responsiveness to increased CO2 is decreased.

A) I B) I and II C) II and III D) I, II, and II A) I B) I and II C) II and III D) I, II, and II

In the face of chronically elevated levels of CO2, what happens to the response mediated by the central chemoreceptors?

A) It is accentuated or increased. B) It is muted or decreased. C) There is no change in the response. D) There is no way to predict the bodies response. A) It is accentuated or increased. B) It is muted or decreased. C) There is no change in the response. D) There is no way to predict the bodies response.

Stimulation to increase ventilation does not occur until the PaO2 falls below what level?

A) 90 mm Hg B) 80 mm Hg C) 70 mm Hg D) 60 mm Hg A) 90 mm Hg B) 80 mm Hg C) 70 mm Hg D) 60 mm Hg

Coexisting arterial hypoxemia, acidemia, and high PaCO2 (i.e., asphyxia) will have what affect on the peripheral chemoreceptors?

A) There is a decreased drive to breathe. B) There is a maximal increased drive to breathe. C) There is insufficient information to make a determination. D) There is virtually no response. A) There is a decreased drive to breathe. B) There is a maximal increased drive to breathe. C) There is insufficient information to make a determination. D) There is virtually no response.

Exam 14: Regulation of Breathing

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What happens in chronic hypercapnia? I.The central chemoreceptive response to CO₂ is decreased. II.The cerebrospinal fluid pH is restored to normal. III.Responsiveness to increased CO₂ is decreased.

(Multiple Choice)

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Question 21

You observe a patient's breathing pattern as very irregular, with periods of breathing interspersed with long periods of apnea. Which of the following terms would you use in charting this observation?

(Multiple Choice)

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Question 22

Pulmonary J receptors can be stimulated by which of the following? I.edema II.inflammatory processes III.pulmonary vascular congestion

(Multiple Choice)

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Question 23

In what manner would oxygen therapy induce worsening $\dot { V }$ / $\dot { Q }$ mismatch and thus a further elevation in CO₂ in a chronically hypercapnic patient?

(Multiple Choice)

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Question 24

What receptors are known to cause an increase in ventilation when the patient's limbs are moved or cold water is splashed on the patient's face?

(Multiple Choice)

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Question 25

What receptors cause a rapid shallow breathing pattern when stimulated by pulmonary disease?

(Multiple Choice)

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Question 26

Which of the following can cause laryngospasm and bradycardia through a vagovagal reflex? I.bronchoscopy II.endotracheal intubation III.tracheal suctioning

(Multiple Choice)

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Question 27

In the face of chronically elevated levels of CO₂, what happens to the response mediated by the central chemoreceptors?

(Multiple Choice)

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Question 28

Stimulation to increase ventilation does not occur until the PaO₂ falls below what level?

(Multiple Choice)

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Question 29

In what location are the inspiratory and expiratory centers found?

(Multiple Choice)

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Question 30

The pneumotaxic center controls which of the following?

(Multiple Choice)

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Question 31

The medulla oblongata contains which of the following areas? I.apneustic center II.dorsal respiratory group neurons (DRGs)III.pneumotaxic center IV.ventral respiratory group neurons (VRGs)

(Multiple Choice)

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Question 32

While observing a patient's breathing, you note that the depth and rate first increase, then decrease, followed by a period of apnea. Which of the following terms would you use in charting this observation?

(Multiple Choice)

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Question 33

The inhibitory neurons that switch off the inspiratory ramp signal are controlled by which of the following? I.apneustic center II.pneumotaxic center III.pulmonary stretch receptors

(Multiple Choice)

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Question 34

Failure to switch off the brainstem inspiratory neurons can result in which of the following?

(Multiple Choice)

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Question 35

Which statements describe aspects of the Hering-Breuer reflex? I.It affects the rate and depth of breathing during exercise. II.It is only activated at large tidal volumes in normal adults. III.Its impulses travel via the vagus nerve to the dorsal respiratory groups (DRGs). IV.Its receptors are located in the large and small airways.

(Multiple Choice)

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Question 36

What reflex is associated with the sensory stimulation of the pulmonary stretch receptors that stimulate a deeper breath upon inspiration?

(Multiple Choice)

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Question 37

Coexisting arterial hypoxemia, acidemia, and high PaCO₂ (i.e., asphyxia) will have what affect on the peripheral chemoreceptors?

(Multiple Choice)

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Question 38

What does apneustic breathing indicate?

(Multiple Choice)

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Question 39

Sensory input to the dorsal respiratory neurons from the lungs, airways, and peripheral chemoreceptors is provided via which nerves? I.glossopharyngeal II.phrenic III.vagus

(Multiple Choice)

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Question 40

Showing 21 - 40 of 48

Exam 14: Regulation of Breathing

What happens in chronic hypercapnia? I.The central chemoreceptive response to CO2 is decreased. II.The cerebrospinal fluid pH is restored to normal. III.Responsiveness to increased CO2 is decreased.

You observe a patient's breathing pattern as very irregular, with periods of breathing interspersed with long periods of apnea. Which of the following terms would you use in charting this observation?

Pulmonary J receptors can be stimulated by which of the following? I.edema II.inflammatory processes III.pulmonary vascular congestion

In what manner would oxygen therapy induce worsening V˙\dot { V }V˙ / Q˙\dot { Q }Q˙​ mismatch and thus a further elevation in CO2 in a chronically hypercapnic patient?

What receptors are known to cause an increase in ventilation when the patient's limbs are moved or cold water is splashed on the patient's face?

What receptors cause a rapid shallow breathing pattern when stimulated by pulmonary disease?

Which of the following can cause laryngospasm and bradycardia through a vagovagal reflex? I.bronchoscopy II.endotracheal intubation III.tracheal suctioning

In the face of chronically elevated levels of CO2, what happens to the response mediated by the central chemoreceptors?

Stimulation to increase ventilation does not occur until the PaO2 falls below what level?

In what location are the inspiratory and expiratory centers found?

The pneumotaxic center controls which of the following?

The medulla oblongata contains which of the following areas? I.apneustic center II.dorsal respiratory group neurons (DRGs)III.pneumotaxic center IV.ventral respiratory group neurons (VRGs)

While observing a patient's breathing, you note that the depth and rate first increase, then decrease, followed by a period of apnea. Which of the following terms would you use in charting this observation?

The inhibitory neurons that switch off the inspiratory ramp signal are controlled by which of the following? I.apneustic center II.pneumotaxic center III.pulmonary stretch receptors

Failure to switch off the brainstem inspiratory neurons can result in which of the following?

What reflex is associated with the sensory stimulation of the pulmonary stretch receptors that stimulate a deeper breath upon inspiration?

Coexisting arterial hypoxemia, acidemia, and high PaCO2 (i.e., asphyxia) will have what affect on the peripheral chemoreceptors?

What does apneustic breathing indicate?

Sensory input to the dorsal respiratory neurons from the lungs, airways, and peripheral chemoreceptors is provided via which nerves? I.glossopharyngeal II.phrenic III.vagus

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

Bedside Assessment of the Patient

Interpretation of Clinical Laboratory Data

Interpreting the Electrocardiogram

Analysis and Monitoring of Gas Exchange

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

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What happens in chronic hypercapnia? I.The central chemoreceptive response to CO₂ is decreased. II.The cerebrospinal fluid pH is restored to normal. III.Responsiveness to increased CO₂ is decreased.

In what manner would oxygen therapy induce worsening $\dot { V }$ / $\dot { Q }$ mismatch and thus a further elevation in CO₂ in a chronically hypercapnic patient?

In the face of chronically elevated levels of CO₂, what happens to the response mediated by the central chemoreceptors?

Stimulation to increase ventilation does not occur until the PaO₂ falls below what level?

Coexisting arterial hypoxemia, acidemia, and high PaCO₂ (i.e., asphyxia) will have what affect on the peripheral chemoreceptors?