15 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
it has a narrow focus ... Calculation #Table #PPV ... #NPV #Formulas ... #Statistics #Matrix
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
NegativePredictiveValue #NPV ... Biostatistics #statistics
The Gastroenterology Consult Primer
Guide to Calling a GI Consult
HPI:
 - Start with reason for consult
lipase PMH: - Focus ... Course: - NPO
Common Bile Duct (CBD) on Abdominal Ultrasound

The key to finding CBD is to look anteriorly to
tube above the PV ... clinical #ultrasound #pocus
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
PositivePredictiveValue #PPV ... Biostatistics #statistics
This requires defining some general cutoff values for likelihood ratios.  These are admittedly arbitrary, but
#Diagnosis #Statistics ... #Relationship #Graph
It's eye-opening to realize how many tests with reasonable-appearing sensitivity or specificity will end up being
#Diagnosis #Statistics ... #Specificity #Graph
Appendicitis on POCUS
68 y/o male with acute RLQ pain, involuntary guarding, WBC 20.  Probe where
Appendicitis on POCUS ... IV abx, IVF, NPO ... #Appendicitis #POCUS