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NSG 550 Exam 2 Questions And Correct Answers
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NSG 550 Exam 2 Questions And Correct AnswersPulmonary Function Tests/Spirometry: What can it depend on?
Age
Sex
Height
Weight
Pulmonary Function Tests/Spirometry: Measured with
Peop assessment of lungs and pulmonary reserve
response to bronchodilator therapy
differentiate between restrictive and obstructive chronic pulmonary disease
Determine size of lung capacity
Inhalation allergy tests
Pulmonary Function Tests/Spirometry: What studies are included?
Spirometry
Measurement of airflow
Volume of lung
Capacity of lung
FVC
The amount of air able to be forcibly exhaled from a position of maximal lung inflation.
What can be inferred from reduced forced vital capacity?
,Obstructive and restrictive pulmonary diseases.
FEV1
Forced expiratory volume in 1 second
Volume of air exhaled during the first second of FVC
What does FEV1 report 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 exhaled in 1
second.
FEV1: What does FEV1 show 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 increases airflow rate and volume?
20% with use of bronchodilator
,Diagnosis of COPD requires what?
Demonstration of persistent airflow limitation based on spirometry testing
FEV1/FVC after bronchodilator is less than 70%.
What is the basis for the classification of severity of COPD?
Spirometry testing assessment at regular intervals
COPD Risk factors
Smoking
Exposure to pollution
Genetic predisposition
Compare COPD with Asthma
Much later in life the onset
Symptoms show a slower course
Poor 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
3 multiple choice options
What is a actigraphy?
A watch that can be worn a few nights at home
What is a bronchoscopy used for?
Doing diagnostic and therapeutic procedures
What can you use a bronchoscopy for?
Visualization of a tracheobronchial tree
Transbronchial and Endobronchial biopsy
Bronchoalveolar lavage
Removal of foreign bodies
Clots
Mucus plugs
Deployment of metallic stents.
Aspiration of deep sputum
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