OPRA: Biomedical sciences
Biomedical sciences is about ~20% of OPRA — the physiology and disease-mechanism foundation the clinical questions build on.
High-yield areas
- Body-systems physiology and pathophysiology
- Microbiology and antimicrobial stewardship
- Immunology and the basis of vaccines
- Interpreting common laboratory values
How to study it
Connect each mechanism to its clinical consequence — understanding why a lab value moves or a system fails makes the therapeutics questions far easier.
Start preparing free
Create a free account and practise 50 questions, three Crash Course modules and the full Calculations Lab — no payment needed.
Start freeFrequently asked questions
How much of OPRA is biomedical sciences?
Approximately 20% of the exam.