PFT Exam One All Answers Correct
bronchodilators
what medication should be withheld before patient testing?
spirometry
what is considered the "gold standard" PFT for diagnosing airway obstruction?
height
A persons Vital Capacity is directly related to their ________
flow volume loop
...
what medication should be withheld before patient testing?
spirometry
what is considered the "gold standard" PFT for diagnosing airway obstruction?
height
A persons Vital Capacity is directly related to their ________
flow volume loop
what type of graph is this?
volume time curve
what type of graph is this?
bronchodilator studies
A type of PFT where FVC, FEV1, and flow volume loops are used to measure response to bronchodilator
meds
Bronchoprovocation testing
testing that is done to identify inhaled allergens; mucous membranes are directly exposed to suspect
allergen in increasing amounts
Exhaled Nitric Oxide Testing
Test used to monitor asthma patients' response to corticosteroid treatment; assessment of
inflammatory changes in the lungs
airway resistance, residual volume, FRC, and TLC
what volumes are measured in a body box?
, gas dilution test
A test that measures how the concentration of the gases in the container changes due to breathing; FRC
determinations allows TLC and RV to be calculated
DLCO
what assesses the integrity of the alveolar-capillary membrane?
diffusing capacity test
measures the ability of the respiratory membrane to exchange a gas between the alveoli and the
pulmonary blood; mainly focuses on the diffusion of oxygen
pulse oximetry
commonly used to assess SpO2 and heart rate
diagnose presence of lung disease, look at extent of disease, measure effects of occupational or
environmental exposures, determine beneficial or negative effects of therapy, assess risks for surgical
procedures, evaluate disability or impairment, clinical research involving lung health of disease
what are the indications for spirometry?
evaluate or follow the progress of parenchymal lung disease, eval pulmonary involvement in systematic
diseases, eval obstructive lung and cardiovascular disease, quantify disability associated with interstitial
lung disease
what are indications for DLCO (diffusing capacity)?
diagnose or assess the severity of restrictive lung disease, differentiate between obstructive and
restrictive disease patterns, assess response of therapeutic interventions, determine the extent of
hyperinflation, assess gas trapping, make pre op assessments of patients with compromised lung
function
what are the indications for Lung Volumes? (TLC, FRC, RV)
restrictive lung disease (reduced TLC)
the most common reason for measuring lung volumes is to identify what?
obstructive lung disease
Narrowed airways result in resistance to airflow during breathing. Examples are asthma, bronchiectasis,
COPD, and cystic fibrosis, emphysema, alpha 1 antitrypsin deficiency, vocal cord dysfunction, and
tumors
restrictive lung disease
the condition of fibrous lung tissue, which results in a decreased ability to expand the lungs. examples
are pulmonary fibrosis, sarcoidosis, kyphoscoliosis, asbestosis, Guillian-barre, myasthenia gravis, CHF,
and obesity
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