Anyone awake. I'm at work and have a patient with tachycardia and a EF of 10%. Coreg ordered with iv lasix. Due to SBP in 90s and knowing that I need to give coreg, I called on call resident to see where to go from there. Resident said to give the 40mg iv lasix. I am definitely concerned due to potential of drying patient out. BUN is definitely on a downward trend from previously and creatinine is also on a downward trend. Will be giving the IV lasix and watching but definitely concerned due to experiences thus far with the residents knowledge base. Not used to working in teaching facility. Let me know what you think.