NSG 550: Exam 2 Complete Questions &
Answers (Solved) 100% Correct Answers 2025-
2026 Graded A+
Pulmonary Function Tests/Spirometry: What can cause it to vary?
Age
Sex
Height
Weight
Pulmonary Function Tests/Spirometry: Used to evaluate
Peop eval of lungs and pulmonary reserve
response to bronchodilator therapy
differentiate between restrictive and obstructive chronic
pulmonary disease
Determine capacity of lungs
Inhalation allergy tests
,Pulmonary Function Tests/Spirometry: What tests do they
include?
Spirometry
Airflow measurement
Lung volume
Lung capacity
Forced Vital Capacity (FVC)
Amount of air that can be forcefully expelled from a maximally
inflated lung position.
What does a reduced forced vital capacity suggest?
Obstructive and restrictive pulmonary diseases.
Forced expiratory volume in 1 second (FEV1)
Volume of air expelled during the first second of FVC
What are the findings of FEV1 in obstructive pulmonary disease?
Airways are narrowed
Resistance to flow is high
Numbers of FEV1 are less than predicted because not so much
air can be expelled in 1 second.
FEV1: What are the findings in restrictive lung disease?
Decreased because amount of air originally inhaled is low,
instead of airway resistance.
What is a normal FEV1/FVC ratio in restrictive lung disease?
80%.
,What is a normal FEV1/FVC ratio in obstructive lung disease?
Less than 80%
Under what condition will the FEV1 value reliably improve?
With bronchodilator therapy with a spastic component to
obstructive pulmonary disease exists.
Normal results of Spirometry
Greater than 80% of expected value
Airflow rate: When is it considered diminished?
Less than 60% of normal.
What helps to increase airflow rate and by how much?
20% by with bronchodilator
Diagnosis of COPD requires what?
Demonstration of persistent airflow limitation based on
spirometry testing.
After bronchodilator, FEV1/FVC of less than 70%.
Classification of COPD severity is based on what?
Assessment of spirometry testing at regular intervals
COPD Risk factors
Smoking
Pollution exposure
Genetic predispostion
How does COPD compare with asthma?
, Onset later in life.
Slower progression of symptoms.
Poorer response to inhaled therapy.
Polysomnography
Sleep study
When is a polysomnography indicated?
When any person:
snores excessively
Experiences narcolepsy
Excessive daytime sleepiness
Insomnia
Motor spasms while sleeping
Cardiac rhythm disturbances when sleeping.
What does a polysomnography test most commonly diagnose?
Sleep apnea
What is a actigraphy?
A watch that can be worn a few nights at home
What is a bronchoscopy used for?
Performing diagnostic and therapeutic procedures
What can you use a bronchoscopy for?
Visualization of a tracheobronchial tree
Transbronchial and Endobronchial biopsy
Bronchoalveolar lavage
Answers (Solved) 100% Correct Answers 2025-
2026 Graded A+
Pulmonary Function Tests/Spirometry: What can cause it to vary?
Age
Sex
Height
Weight
Pulmonary Function Tests/Spirometry: Used to evaluate
Peop eval of lungs and pulmonary reserve
response to bronchodilator therapy
differentiate between restrictive and obstructive chronic
pulmonary disease
Determine capacity of lungs
Inhalation allergy tests
,Pulmonary Function Tests/Spirometry: What tests do they
include?
Spirometry
Airflow measurement
Lung volume
Lung capacity
Forced Vital Capacity (FVC)
Amount of air that can be forcefully expelled from a maximally
inflated lung position.
What does a reduced forced vital capacity suggest?
Obstructive and restrictive pulmonary diseases.
Forced expiratory volume in 1 second (FEV1)
Volume of air expelled during the first second of FVC
What are the findings of FEV1 in obstructive pulmonary disease?
Airways are narrowed
Resistance to flow is high
Numbers of FEV1 are less than predicted because not so much
air can be expelled in 1 second.
FEV1: What are the findings in restrictive lung disease?
Decreased because amount of air originally inhaled is low,
instead of airway resistance.
What is a normal FEV1/FVC ratio in restrictive lung disease?
80%.
,What is a normal FEV1/FVC ratio in obstructive lung disease?
Less than 80%
Under what condition will the FEV1 value reliably improve?
With bronchodilator therapy with a spastic component to
obstructive pulmonary disease exists.
Normal results of Spirometry
Greater than 80% of expected value
Airflow rate: When is it considered diminished?
Less than 60% of normal.
What helps to increase airflow rate and by how much?
20% by with bronchodilator
Diagnosis of COPD requires what?
Demonstration of persistent airflow limitation based on
spirometry testing.
After bronchodilator, FEV1/FVC of less than 70%.
Classification of COPD severity is based on what?
Assessment of spirometry testing at regular intervals
COPD Risk factors
Smoking
Pollution exposure
Genetic predispostion
How does COPD compare with asthma?
, Onset later in life.
Slower progression of symptoms.
Poorer response to inhaled therapy.
Polysomnography
Sleep study
When is a polysomnography indicated?
When any person:
snores excessively
Experiences narcolepsy
Excessive daytime sleepiness
Insomnia
Motor spasms while sleeping
Cardiac rhythm disturbances when sleeping.
What does a polysomnography test most commonly diagnose?
Sleep apnea
What is a actigraphy?
A watch that can be worn a few nights at home
What is a bronchoscopy used for?
Performing diagnostic and therapeutic procedures
What can you use a bronchoscopy for?
Visualization of a tracheobronchial tree
Transbronchial and Endobronchial biopsy
Bronchoalveolar lavage
