A TEST STRIP SPECIFIC FOR HCG IS ADDED WITH SAMPLE (URINE) IN A TEST WELL. HCG PRESENT IN SAMPLE TRAVEL ACROSS THE REACTION PAD AND CAPTURED BY MONOCLONAL ANTI-HCG DYE ATTACHED IN THE PAD. COMPLEX ANTI-HCG THEN NOW FLOW INTO THE RESULT WINDOW WHERE IT IS CAPTURED BY IMMOBILIZED ANTI-HCG COMPLEX (RABBIT) IN “TEST REGION” ANOTHER AREA CALLED THE CONTROL REGION IS ATTACHED WITH IMMOBILIZED ANTIBODY TO CAPTURE ANTI-HCG DYE (WITH OR WITHOUT A COMPLEX)