Question 1

The pressure required to inflate an alveolus is inversely related to:

Accepted Answer

A)  wall thickness. 
B)  surface tension. 
C)  minute volume. 
D)  alveolar radius. 
A)  wall thickness. 
B)  surface tension. 
C)  minute volume. 
D)  alveolar radius.

Question 2

While reviewing the results of the pulmonary functions test, the nurse is aware that the maximum amount of gas that can be displaced (expired)from the lung is called:

Accepted Answer

A)  vital capacity (V
C) . 
B)  total lung capacity. 
C)  functional capacity. 
D)  residual volume. 
A)  vital capacity (V
C) . 
B)  total lung capacity. 
C)  functional capacity. 
D)  residual volume.

Question 3

A patient is experiencing respiratory difficulty and retaining too much carbon dioxide.Which receptor sites would be stimulated in an attempt to maintain a normal homeostatic state?

Accepted Answer

A)  Irritant 
B)  Stretch 
C)  Peripheral 
D)  Central 
A)  Irritant 
B)  Stretch 
C)  Peripheral 
D)  Central

Question 4

If an individual with respiratory difficulty were retaining too much carbon dioxide, which of the following compensatory responses would the nurse expect to be initiated?

Accepted Answer

A)  Increase in respiratory rate 
B)  Decrease in ventilation rate 
C)  Increase in tidal volume 
D)  Vasodilation of the pulmonary arterioles 
A)  Increase in respiratory rate 
B)  Decrease in ventilation rate 
C)  Increase in tidal volume 
D)  Vasodilation of the pulmonary arterioles

Question 5

_____ seconds is required for oxygen (O2)concentration to equilibrate (equalize)across the alveolocapillary membrane.

Accepted Answer

Question 6

After entering a room of chemical fog, a 20-year-old male cannot stop coughing.Which of the following structures are primarily responsible for his response?

Accepted Answer

A)  Upper respiratory tract mucosa 
B)  Irritant receptors in the trachea and large airways 
C)  Irritant receptors in the nostrils 
D)  Upper respiratory nasal hairs and turbinates 
A)  Upper respiratory tract mucosa 
B)  Irritant receptors in the trachea and large airways 
C)  Irritant receptors in the nostrils 
D)  Upper respiratory nasal hairs and turbinates

Question 7

What is the partial pressure of oxygen in the lung given the following conditions?
Percentage of oxygen in air: 20
Barometric pressure: 700 mm Hg

Accepted Answer

A)  111 mm Hg 
B)  124 mm Hg 
C)  131 mm Hg 
D)  140 mm Hg 
A)  111 mm Hg 
B)  124 mm Hg 
C)  131 mm Hg 
D)  140 mm Hg

Question 8

The nurse is describing the movement of blood into and out of the capillary beds of the lungs to the body organs and tissues.What term should the nurse use to describe this process?

Accepted Answer

A)  Perfusion 
B)  Ventilation 
C)  Diffusion 
D)  Circulation 
A)  Perfusion 
B)  Ventilation 
C)  Diffusion 
D)  Circulation

Question 9

Carbon dioxide (CO2)is mainly transported in the blood:

Accepted Answer

A)  attached to oxygen (O2). 
B)  dissolved in red blood cells. 
C)  combined with albumin. 
D)  in the form of bicarbonate. 
A)  attached to oxygen (O2). 
B)  dissolved in red blood cells. 
C)  combined with albumin. 
D)  in the form of bicarbonate.

Question 10

The nasopharynx is lined with a ciliated mucosal membrane with a highly vascular blood supply.One function of this membrane is to:

Accepted Answer

A)  absorb air. 
B)  humidify air. 
C)  cool air. 
D)  exchange gases. 
A)  absorb air. 
B)  humidify air. 
C)  cool air. 
D)  exchange gases.

Question 11

A nurse recalls the pleural membranes are examples of _____ membranes.

Accepted Answer

A)  mucous 
B)  serous 
C)  synovial 
D)  peritoneal 
A)  mucous 
B)  serous 
C)  synovial 
D)  peritoneal

Question 12

A newborn is in respiratory distress and requires ventilation.Tests reveal that he does not produce surfactant due to the absence of:

Accepted Answer

A)  mucus-producing cells. 
B)  type II alveolar cells. 
C)  alveolar macrophages. 
D)  goblet cells. 
A)  mucus-producing cells. 
B)  type II alveolar cells. 
C)  alveolar macrophages. 
D)  goblet cells.

Exam 26: Structure and Function of the Pulmonary System

The pressure required to inflate an alveolus is inversely related to:

While reviewing the results of the pulmonary functions test, the nurse is aware that the maximum amount of gas that can be displaced (expired)from the lung is called:

A patient is experiencing respiratory difficulty and retaining too much carbon dioxide.Which receptor sites would be stimulated in an attempt to maintain a normal homeostatic state?

If an individual with respiratory difficulty were retaining too much carbon dioxide, which of the following compensatory responses would the nurse expect to be initiated?

_____ seconds is required for oxygen (O2)concentration to equilibrate (equalize)across the alveolocapillary membrane.

After entering a room of chemical fog, a 20-year-old male cannot stop coughing.Which of the following structures are primarily responsible for his response?

What is the partial pressure of oxygen in the lung given the following conditions? Percentage of oxygen in air: 20 Barometric pressure: 700 mm Hg

The nurse is describing the movement of blood into and out of the capillary beds of the lungs to the body organs and tissues.What term should the nurse use to describe this process?

Carbon dioxide (CO2)is mainly transported in the blood:

The nasopharynx is lined with a ciliated mucosal membrane with a highly vascular blood supply.One function of this membrane is to:

A nurse recalls the pleural membranes are examples of _____ membranes.

A newborn is in respiratory distress and requires ventilation.Tests reveal that he does not produce surfactant due to the absence of:

Cellular Biology

Genes and Genetic Diseases

Epigenetics and Disease

Altered Cellular and Tissue Biology

Fluids and Electrolytes, Acids and Bases

Innate Immunity: Inflammation and Wound Healing

Adaptive Immunity

Infection and Defects in Mechanisms of Defense

Stress and Disease

Biology, Clinical Manifestations, and Treatment of Cancer

Cancer Epidemiology

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature, Sleep, and Sensory Function

Alterations in Cognitive Systems, Cerebral Hemodynamics, and Motor Function

Disorders of the Central and Peripheral Nervous Systems and the Neuromuscular Junction

Alterations of Neurologic Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Hematologic System

Alterations of Hematologic Function

Alterations of Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Alterations of Pulmonary Function

Alterations of Pulmonary Function in Children

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Reproductive Systems

Alterations of the Female Reproductive System

Alterations of the Male Reproductive System

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Filters

_____ seconds is required for oxygen (O₂)concentration to equilibrate (equalize)across the alveolocapillary membrane.

Carbon dioxide (CO₂)is mainly transported in the blood: