Used by Experts to Detect LPR: the Reflux Symptom Index (RSI) Are you unsure whether you have LPR? Check your symptoms within a few minutes. check 9 QUESTIONS ABOUT YOUR SYMPTOMS THAT ARE GOOD INDICATORS FOR THE DISEASE... check CALCULATION OF YOUR REFLUX SYMPTOM INDEX (RSI) WHICH TELLS YOU THE STRENGTHS OF YOUR LPR... check USED BY PHYSICANS, RESEARCHERS & SURGEONS WORLDWIDE TO MEASURE TREATMENT SUCCESS... check PLUS… LEARN WHAT YOUR NEXT STEPS ARE - BASED ON YOUR TEST RESULTS... Get Tested Online!