Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: Kidneys took a hit due to the aggressive BMX drip to try and alleviate the pulmonary edema. He was on a drip to help with hypertension but has since been able to come off of it in the last 36 hours. Docs were concerned about heart complications as to why he suddenly doesnt need it anymore (blood pressure has been a big problem since being on ecmo) however his echocardiogram came back normal.. ### Response: Ok, ivig is contraindicated in renal failure. So, they might bide for time till kidney function improves. It is reassuring to hear that echo is normal..