2280 results
Fungal Biomarkers: Comparing Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 •
Spec -80% for IA, PPV ... < 50%, NPV > 90%
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
#specificity #PPV ... #NPV
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
it has a narrow focus ... Calculation #Table #PPV ... #NPV #Formulas
Summary for providing acute non-invasive ventilation (NIV)

- Indications for NIV
- Contraindications for NIV
- NIV Setup
- NIV
non-invasive ventilation (NIV ... Indications for NIV ... Contraindications for NIV ... - NIV Setup - ... NIV Monitoring
What's in a Blood Gas? VBG vs ABG

BOTTOM LINE: VBG is less painful, more easily obtained
sensitivity & 100% NPV
This is what a shoulder dislocation looks like on US before and after reduction. Focus on
Focus on the joint ... EM_RESUS #Clinical #POCUS
Focus Assessed Transthoracic Echo (FATE) - Basic FATE views

Pos 1: Subcostal 4-chamber

Pos 2: Apical 4-chamber

Pos 3:
Focus Assessed Transthoracic ... Echocardiogram #POCUS
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
PPV: proportion ... prevalence is low, then PPV ... NPV: proportion ... specificity -> higher PPV ... sensitivity -> higher NPV
The Gastroenterology Consult Primer
Guide to Calling a GI Consult
HPI:
 - Start with reason for consult
lipase PMH: - Focus ... Course: - NPO
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
in aVR > 0.7: ppv ... NPV = 95% 4.