, Likelihood Ratio:

Drag the sliders left or right to adjust your patient's risk!

Pretest Probability:

Post Test Probability:

What Is This?

It's a dynamic risk calculator:

  1. Drag the "Pretest Probability" slider to your patient's risk of having the disease in question (based on your gestalt).
  2. The Likelihood Ratio is pre-filled for you for the particular finding you clicked.
  3. The Post Test Probability tells you what your risk is now after the patient having or not having a particular finding.