Q: 21 year old male is admitted to ICU after burn. Patient is intubated in ER and  Intra-venous fluid (IVF) started. Nurse inserted foley catheter in ICU and it appears black in color. What should be your next step?

Answer: Increase IVF and start treatment for myoglobinuria

Failure to clear myoglobinuria after 6 hrs indicates ongoing source, and demands compartment release, immediate debridement of necrotic muscle tissue, or even amputation. A burn expert should be consulted.