MY HUSBAND HAS BEEN DIAGNOSED WITH PROTHROBIN GENE MUTATION. WE HAVE A ACTIVE CLOT. BUT ACCORDING TO OUR SPECIALIST, HIS KIDNEYS ARE ONLY WORKING AT 36 %. SHE SAYS THAT THERE IS A VERY RARE CONDITION CALLED POST NUEMATIC HEMOGLOBIN. PNH AND I AM LOOKING FOR ANSWERS TO WHAT THIS IS?. HE IS CURRENTLY ON LEVONAX 100MG BID. TO TRY AND DISOLVE THIS CLOT HE HAS HAD SINCE AUGUST 3.