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Dx Studies of Resp. SystemMedical Surgical Nursing

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__________ biopsies are done when other procedures are unsuccessful at obtaining a diagnosis.
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Open lung biopsies
What is a normal value for a pulmonary function test?
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80-120% of the predicted value for their age, height, gender, and race
Which race typically has higher FEV and FVC?
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Caucasians
T/F Pulmonary Function tests are a definitive diagnostic tool for some pulmonary diseases.
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False, they are never used in isolation, only in conjunction with other assessments.
Home __________ is a form of a pulmonary function test that is used to monitor lung functions in people with asthma or cystic fibrosis, as well as before and after lung transplantation.
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Spirometry/peak flow monitor
A __________ test can be used to measure functional capacity and response to medical interventions in patients with moderate to severe heart or lung disease.
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6 minute walk test
The volume of air inhaled and exhaled with each breath. Normal is 0.5 L.
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Tidal Volume (Vt)
Additional air that can be forcefully exaled after normal exhalation is complete. Normal is 1.0 L.
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Expiratory Reserve Volume (ERV)
Maximum airflow rate during forced expiration; aids monitoring of bronchoconstriction in asthma, can be measured with a peak flow meter. Normal is up to 600 L/min.
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Peak expiratory flow rate (PEFR)
Deep breathing as rapidly as possible for specified period; fairly nonspecific test that gives information about exercise capacity. Used with exercise stress test. Normal is 170 L/min.
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Maximal voluntary ventilation (MVV)
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Measurement of airflow rate in middle half of forced expiration, early indicator of disease of the small airways. Normal is greater than 75% of predicted value.
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Forced midexpiratory flow rate (FEF)
Dividing the value of FEV1 by value in FVC; useful for differentiating obstructive and restrictive pulmonary dysfunction.
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FEV1/FVC ratio
Amount of air exhaled in first second of FVC, grades severity of airway obstruction. Normal is over 80% of the predicted value.
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Forced expiratory volume in first second of expiration (FEV1)
Amount of air that can be quickly and forcefully exhaled after maximum inspiration. Normal is 80% of the predicted value.
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Forced vital capacity (FVC)
Maximum volume of air that can be inhaled after normal expiration. Normal is 3.5 L.
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Inspiratory Capacity (IC)
Maximum volume of air that can be exhaled after maximum inspiration. Normal is 4.5 L
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Vital Capacity (VC)
Volume of air remaining in lungs at end of normal exhalation. Normal is 2.5 L
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Functional Residual Capacity (FRC)
Maximum volume of air that the lungs can control. Normal is 6.0 L.
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Total Lung Capacity (TLC)
Maximum volume of air that can be inhaled forcefully after normal inhalation. Normal is 3.0 L.
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Inspiratory Reserve Volume (IRV)
Amount of air remaining in lungs after forced expiration; air that can be inhaled forcefully after normal inhalation. Normal is 1.5 L.
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Residual volume (RV)
  
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