Pulmo 2 Flashcards
Uncomplicated parapneumonic effusion -
due to:
pleural fluid analysis:
increased flow of interstitial edema into pleural space
pH >7.20 normal glucose (nearly that of serum)
complicated parapneumonic effusion - pleural fluid analysis:
pH <7.20
low glucose <60 mg/dL
Malignant effusion
Lymphocyte predominant
erythrocytes >10,000
pH <7.20
low glucose
______ can be used in patients with severe renal insufficiency (estimated glomerular filtration rate <30 mL/min/1.73 m2) for anticoagulation
unfractionated heparin
Treatment of pulmonary embolism:
Once the heparin produces therapeutic anticoagulation (goal PTT >1.5-2 times normal), warfarin is initiated. Warfarin can take up to 5-7 days to reach therapeutic levels. After reaching a therapeutic INR, heparin can be stopped and warfarin can be continued long-term
granulomatosis with polyangiitis (GPA)
Lower respiratory tract involvement may lead to
■ tracheal narrowing with ulceration,
c chest x-ray findings:
•multiple lung nodules with cavitation
•alveolar opacities.
Cor pulmonale Chest x-ray findings
- enlarged central pulmonary arteries without evidence of vascular congestion.
- loss of retrosternal air space due to right ventricular hypertrophy.
Antibiotics requirement in COPD exacerbation in:
■ Moderate to severe COPD exacerbation (defined as >2 cardinal symptoms), especially with increased sputum purulence or
■ Mechanical ventilation needed
Roflumilast
phosphodiesterase inhibitor with anti-inflammatory properties that helps decrease mucociliary malfunction and pulmonary remodeling.
It is useful as maintenance therapy to reduce future exacerbations in patients with severe COPD and history of exacerbations, but it is not indicated during an acute exacerbation.
_________ are the three tumors that cause approximately 75% of all malignant pleural effusions.
Lung carcinoma, breast carcinoma, and lymphoma
Undiagnosed pleural effusion is best evaluated with _____ , except in patients ______
thoracentesis
with clear-cut evidence of congestive heart failure.
Alkylosing spodylitis
Pulmonary function tests (PFT) may reveal
a mildly restrictive pattern with
■ ↓vital capacity (VC) and ↓ total lung capacity (TLC) but normal FEV1/FVC ratio.
■ Functional residual capacity (FRC) and residual volume (RV) are normal or increased due to fixation of the rib cage in an inspiratory position.
Theophylline toxicity can manifest as
central nervous system stimulation (eg, headache, insomnia, seizures), gastrointestinal disturbances (eg, nausea, vomiting), and cardiac toxicity (arrhythmia).
Theophylline toxicity antidote
Beta blocker
The 3 most common causes of chronic cough (lasting _________ ) are ____________
> 8 weeks
■ upper-airway cough syndrome (postnasal drip),
■ asthma,
■ gastroesophageal reflux disease (GERD).