Podcast
Questions and Answers
The measurement of air entering and leaving the lungs, including forced airflow and volumes during inspiration and expiration is known as ______.
The measurement of air entering and leaving the lungs, including forced airflow and volumes during inspiration and expiration is known as ______.
spirometry
In a Forced Vital Capacity Maneuver, coaching the ______ capacity enthusiastically helps achieve the optimal TLC.
In a Forced Vital Capacity Maneuver, coaching the ______ capacity enthusiastically helps achieve the optimal TLC.
inspiratory
[Blank] is the maximum amount of air that can be exhaled quickly and forcefully as possible after a minimum inspiration.
[Blank] is the maximum amount of air that can be exhaled quickly and forcefully as possible after a minimum inspiration.
forced vital capacity
The percent of total FVC volume exhaled within a specified time from the start of the maneuver is known as Forced ______ Volume Percent.
The percent of total FVC volume exhaled within a specified time from the start of the maneuver is known as Forced ______ Volume Percent.
A decreased ______ ratio is indicative of obstructive disease.
A decreased ______ ratio is indicative of obstructive disease.
The average expiratory flow rate between the first 0.2 and 1.2L of the FVC volume is known as Maximum ______ Flow Rate.
The average expiratory flow rate between the first 0.2 and 1.2L of the FVC volume is known as Maximum ______ Flow Rate.
The average expiratory flow rate between 75% and 85% of FVC volume is the ______ Expiratory Flow Rate.
The average expiratory flow rate between 75% and 85% of FVC volume is the ______ Expiratory Flow Rate.
The volume of air that is inhaled and then exhaled with each normal breath is known as ______ volume.
The volume of air that is inhaled and then exhaled with each normal breath is known as ______ volume.
The maximum volume of air that can be inhaled following and above a normal tidal breath is the ______ reserve volume.
The maximum volume of air that can be inhaled following and above a normal tidal breath is the ______ reserve volume.
The maximum volume of air that can be exhaled from the resting end-expiratory level is the ______ reserve volume.
The maximum volume of air that can be exhaled from the resting end-expiratory level is the ______ reserve volume.
The volume of air remaining in the lungs after a maximum expiration is known as ______ volume.
The volume of air remaining in the lungs after a maximum expiration is known as ______ volume.
The maximum volume of air that can be inhaled from the normal resting end-expiratory level, which combined Tidal Volume (VT) and Inspiratory Reserve Volume (IRV), is called ______ capacity.
The maximum volume of air that can be inhaled from the normal resting end-expiratory level, which combined Tidal Volume (VT) and Inspiratory Reserve Volume (IRV), is called ______ capacity.
The volume of air remaining in the lungs at the resting end-expiratory level, which is the sum of Expiratory Reserve Volume (ERV) and Residual Volume (RV), is known as ______ residual capacity.
The volume of air remaining in the lungs at the resting end-expiratory level, which is the sum of Expiratory Reserve Volume (ERV) and Residual Volume (RV), is known as ______ residual capacity.
The maximum volume of air that can be exhaled following a maximum inspiration or inhaled following a maximum expiration is called ______ capacity.
The maximum volume of air that can be exhaled following a maximum inspiration or inhaled following a maximum expiration is called ______ capacity.
The volume of air contained within the lungs following a maximum inspiration is referred to as total ______ capacity.
The volume of air contained within the lungs following a maximum inspiration is referred to as total ______ capacity.
When palpating the chest for tactile fremitus, the patient is typically asked to repeat the words '______'.
When palpating the chest for tactile fremitus, the patient is typically asked to repeat the words '______'.
During chest palpation, ______ fremitus is assessed using the ulnar border of the hand.
During chest palpation, ______ fremitus is assessed using the ulnar border of the hand.
When assessing chest mobility, the evaluation focuses on the ______ of chest movements.
When assessing chest mobility, the evaluation focuses on the ______ of chest movements.
In auscultation, decreased breath sounds may indicate ______ or air trapping, as seen in COPD.
In auscultation, decreased breath sounds may indicate ______ or air trapping, as seen in COPD.
Murmurs usually occur when blood flows in ______ fashion through heart structures that have a decreased cross-sectional area.
Murmurs usually occur when blood flows in ______ fashion through heart structures that have a decreased cross-sectional area.
Flashcards
Spirometry
Spirometry
Measurement of air entering/leaving lungs, including forced airflow and volumes during breathing.
Forced Vital Capacity (FVC)
Forced Vital Capacity (FVC)
Maximum air exhaled forcefully after maximum inspiration.
FEV1%
FEV1%
Percentage of FVC exhaled within a specific time frame.
FEV1
FEV1
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FEF 200-1200
FEF 200-1200
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Tidal Volume (VT)
Tidal Volume (VT)
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Inspiratory Reserve Volume (IRV)
Inspiratory Reserve Volume (IRV)
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Expiratory Reserve Volume (ERV)
Expiratory Reserve Volume (ERV)
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Residual Volume (RV)
Residual Volume (RV)
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Inspiratory Capacity (IC)
Inspiratory Capacity (IC)
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Functional Residual Capacity (FRC)
Functional Residual Capacity (FRC)
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Vital Capacity (VC)
Vital Capacity (VC)
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Total Lung Capacity (TLC)
Total Lung Capacity (TLC)
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Tactile Fremitus
Tactile Fremitus
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Chest Mobility
Chest Mobility
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Bruit
Bruit
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Bronchophony (Normal)
Bronchophony (Normal)
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Egophony (Normal)
Egophony (Normal)
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Mediastinal/Tracheal Shifting
Mediastinal/Tracheal Shifting
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Normal Breath Sounds
Normal Breath Sounds
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Study Notes
Spirometry
- Measures air volume entering and leaving the lungs
- Assesses forced airflow and volumes during breathing
Forced Vital Capacity Maneuver
- Common test for pulmonary mechanics
- Patient breathes normally up to three times, then inhales and exhales completely into a spirometer, followed by maximal inhalation
- Encouraging optimal inspiratory capacity and forceful exhalation is necessary for accurate results
Forced Expiratory Volumes
- Forced Vital Capacity (FVC): Maximum air exhaled quickly and forcefully after inspiration
- Forced Expiratory Volume Percent (FEVt%): Percentage of total FVC exhaled within a specific time (0.5, 1, 2, and 3 seconds)
- Timed Forced Expiratory Volume (FEVt): Air volume exhaled within a specific time (0.5, 1, 2, and 3 seconds) during FVC
- FEV1: Gas volume expired in the first second of FVC; reduced in obstructive and restrictive lung diseases; Normal is 5.6L for a 20 year old man
Severity of Obstruction (FEV1)
- Mild: 70% to 74% of predicted value
- Moderate: 60% to 69% of predicted value
- Moderately Severe: 50% to 59% of predicted value
- Severe: 35% to 49% of predicted value
- Very Severe: Less than 35% of predicted value
FEV1/FVC Ratio (FEV%)
-
Percentage of FEV1 relative to FVC
-
FEV1/FVC x 100 = FEV1/FVC ratio
-
Normal Values:
- 50% to 60% of FVC exhaled in 0.5 seconds
- 75% to 85% of FVC exhaled in 1 second
- 94% of FVC exhaled in 2 seconds
- 97% of FVC exhaled in 3 seconds
Measurement | Minimum Acceptable |
---|---|
FEV0.5/FVC | 60% |
FEV1/FVC | 70% |
FEV2/FVC | 94% |
FEV3/FVC | 97% |
- Decreased FEV1/FVC indicates obstructive disease
- Normal values do not rule out restrictive disease
Forced Expiratory Flow Rates
- Maximum Expiratory Flow Rate (FEF 200-1200 or MEFR 200-1200): Average expiratory flow between 0.2 and 1.2L of FVC volume; Normal is 6 to 7 L/s (400L/min); Relates to disorders in large upper airways
- Maximum End-Expiratory Flow Rate (FEF 75%-85%): Average expiratory flow between 75% and 85% of FVC volume; Relates to disorders in smaller bronchioles
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