102 results
What's in a Blood Gas? VBG vs ABG

BOTTOM LINE: VBG is less painful, more easily obtained
sensitivity & 100% NPV
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
#specificity #PPV ... #NPV
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%
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Calculation #Table #PPV ... #NPV #Formulas
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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.
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
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
dx of IA PPV ... NPV >90% (In most
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
Understanding Cervical HPV
Human Papillomavirus(HPV) is a double-stranded DNA virus with over 200 types, divided by tissue
Understanding Cervical HPV ... Papillomavirus(HPV ... vs. mucosal) HPV ... been exposed to HPV ... #Cervical #HPV
Sequelae of HPV infection and preventive strategies #Pathophys #PrimaryCare #Obgyn #HPV #Pathogenesis #Screening #Prevention #BMJ
Sequelae of HPV ... PrimaryCare #Obgyn #HPV