Cyanide toxicity is a rare complication of sodium nitroprusside that can be difficult to diagnose in critically ill patients. We describe a case of cyanide toxicity after cardiac surgery that presented as lactic acidosis after discontinuation of nitroprusside.
Udeh, C. I., Ting, M., Arango, M., & Mick, S. (2015). Delayed presentation of nitroprusside-induced cyanide toxicity. Annals of Thoracic Surgery, 99(4), 1432–1434. https://doi.org/10.1016/j.athoracsur.2014.05.097