22 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Biostatistics #statistics ... #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 ... #Statistics #Matrix
Common Bile Duct (CBD) on Abdominal Ultrasound

The key to finding CBD is to look anteriorly to
stretched out portal ... tube above the PV ... clinical #ultrasound #pocus ... #normal #RUQ
Arterial Lines & Waveforms
Arterial lines permit continuous invasive blood pressure measurement, frequent arterial blood sampling, and
working properly • Normal ... PRESSURE VARIATION (PPV ... Pressure Variation (PPV ... volume (increased PPV
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
NegativePredictiveValue #NPV ... Biostatistics #statistics
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
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
PositivePredictiveValue #PPV ... Biostatistics #statistics
IDSA Recommendations for Preventing Human Papillomavirus Infections and Cervical Cancer Screening for Women with in HIV-AIDS
Recommendations
Pap tests are normal ... (Pap test and HPV ... First Episode of HPV ... Schedules • HPV ... and 6 months #HPV
Oral Cavity Lesions in a patient with HIV/AIDS
White plaque
 - Pseudo-membranous candidiasis
 - Oral hairy leukoplakia
Oral Cavity Lesions ... candidiasis - Oral ... Mass - Wart (HPV ... Darcy_ID_doc #Oral
Pemphigus vulgaris (PV) is an autoimmune, intraepithelial, blistering disease affecting the skin and mucous membranes. It
Pemphigus vulgaris (PV ... captopril can trigger PV ... with drug-induced PV ... differentiate PV ... less common than PV