PFTs
Pulmonary function test results below this % of predicted indicate pulmonary impairment.
What is 80%?
The primary measurement that defines obstructive disease. GOLD criteria use this cutoff.
What is the FEV1/FVC ratio?
What is <0.70?
Restriction is defined when TLC falls below this % predicted.
What is 80%?
Prognosis of IPF is generally this.
What is poor (median survival ~3–5 years)?
OSHA requires this document listing workplace chemical risks.
What is a Safety Data Sheet?
The purpose of PFT interpretation is to classify results as one of these two categories.
What are obstructive and restrictive?
This diagnostic test helps when asthma is suspected but spirometry is normal.
What is bronchial challenge testing?
A low TLC with low DLCO suggests this.
What is parenchymal lung disease (e.g., interstitial fibrosis)?
For Diffuse Parenchymal Lung Disease-
This imaging is the diagnostic test of choice.
What is HRCT?
Three most common causes of pleural effusion in the U.S.
What are heart failure, pneumonia, and malignancy?
This measurement is used to grade severity of obstructive lung disease.
What is FEV1 % predicted?
A bronchial challenge test is positive when this falls by ≥20%.
What is FEV1?
A low TLC with normal DLCO suggests this etiology.
What is extrapulmonary restriction (e.g., obesity, neuromuscular)?
The first step in hypersensitivity pneumonitis treatment.
What is exposure removal?
First imaging test for pleural effusion.
What is chest radiograph?
This lung volume decreases in restrictive disease.
What is total lung capacity (TLC)?
In asthma, this change after bronchodilator confirms reversibility.
What is an increase in FEV1 ≥12% and ≥200 mL?
This imaging test is standard for suspected interstitial lung disease.
What is high-resolution CT?
When HRCT is classic for UIP, this test isn’t needed.
What is lung biopsy?
Pleural fluid pH <7.2 in parapneumonic effusion requires this.
What is chest tube drainage?
A low DLCO with otherwise normal spirometry suggests this.
What is pulmonary vascular or interstitial disease?
The four intermittent symptoms classic for asthma.
What are cough, wheezing, chest tightness, and shortness of breath?
Most common presentation of DPLD (Diffuse Parenchymal Lung Disease)
What is exertional dyspnea and dry cough?
These two antifibrotics slow IPF progression.
What are nintedanib and pirfenidone?
Definitive palliation for recurrent malignant effusion.
What is talc pleurodesis?