Labs & Tests Flashcards
Plasma levels of what are elevated in the presence of thrombus?
D-dimer
The D-dimer provides strong evidence against what condition if it’s normal?
VTE, PE - it is highly sensitive
An elevated sodium and chloride levels are found in the sweat of what kind of patients?
cystic fibrosis
What level of PaO2 is consider hypoxic?
<60 mmHg
Primary study for Pulmonary embolism?
CT Angiography
Study used to evaluate OSA?
Polysomonography
T/F. V/Q scans are indicated in patients with primary pulmonary hypertension.
FALSE!!
What else is Polysomnography indicated in?
Diagnosis and treatment of pulmonary hypertension secondary to OSA.
What test is indicated in patients with a new pleural effusion and no clinically apparent cause OR if atypical presentation?
Thoracentesis
What’s on the WELLS criteria:
Leg swelling or pain HR > 100 Immobilization > 3 days Surgery < 4 wks Previous PE or DVT Hemoptysis Cancer
What non-PE things can cause an elevated DDimer?
malignancy, DIC, pregnancy, infection
Because ABG testing is impractical in most outpatient settings, what has assumed a central role in the office evaluation of dyspnea?
Pulse oximetry
T/F: UIP (intersitial pneumonia) can be confirmed on transbronchial lung biopsy
FALSE. requires SURGICAL lung biopsy.
Which bronchoscopy methods requires general anesthesia? Rigid or flexible?
RIGID
What spirometry values are markedly DECREASED in OBSTRUCTIVE Lung diseases?
FEV1 and FEVI/FVC ratio also PEFR (peak flow)
