24 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Biostatistics #statistics ... #specificity #PPV ... #NPV
The graph illustrates the differences in the onset and duration of action for various types of
The graph illustrates ... glulisine), Regular, NPH ... Peaks #Timeline #Graph
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Calculation #Table #PPV ... #NPV #Formulas ... #Statistics #Matrix
Genital Ulcer - Differential Algorithm
Painful
 - H. ducreyi (Chancroid)
 - HSV
Painless
 - T pallidum (Chancre)
 -
Genital Ulcer - Differential ... Chlaymydia - HPV ... Genital #Ulcers #Differential
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
ST elevation: Differential ... in aVR > 0.7: ppv ... NPV = 95% 4. ... diagnosis #ekg #differential
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
NegativePredictiveValue #NPV ... Biostatistics #statistics
Oral Cavity Lesions in a patient with HIV/AIDS
White plaque
 - Pseudo-membranous candidiasis
 - Oral hairy leukoplakia
Mass - Wart (HPV ... Lesions #HIVAIDS #Differential
Basophilia - Differential Diagnosis Framework

Basophils < 1% of the total white blood cell count
Basophils function similarly
Basophilia - Differential ... • Statistical ... #Basophilia #Differential
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Encephalopathy - Differential ... Degenerative, NPH ... Encephalopathy #Differential
Reversible Neurocognitive Disorders (Reversible Causes of "Dementia")
 • Structural/Mass: Subdural Hematoma, NPH, Intracranial tumor
 • Infection:
Subdural Hematoma, NPH ... Disorders #dementia #differential