What are urine R&M findings of ATN AKI?,”R: hemoglobin, myoglobin June 22, 2017 mfadmin Medicine Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review. What are urine R&M findings of ATN AKI?,”R: hemoglobin, myoglobin albuminM: Muddy brown casts”