Brain fog

I'm over the flu now, I just have this rotten chest congestion and a terrible foggy feeling... I hate that. Today I was wasting Fentanyl in the med room, and my brain stopped working. The equation goes like this: 2 mL of Fentanyl = 100 mcg. I needed to give the patient 75 mcg, so I needed to "waste" 25 mcg. For some reason, I could not get my mind to comprehend that I needed to waste 0.5 mL in order to get a total of 75 mcg. I had to think to myself, OK, 1 mL = 50 mcg......... and I want 75......... so I need 1 mL, and then half that again would be ......... a half a milliliter .......... so my total number of mLs would be............. one and........ one and a half, right?

I looked at the nurse who was wasting with me (these things need to be witnessed), and she said, "Nooo...." And I thought, Oh no - I hate this foggy feeling! She probably thinks I am a moron! And then I thought.... Wait a second... That IS right! We went through it again and she agreed this time, but I wanted to shake my head to get rid of the cobwebs or something... ugh. If only I had foglights for my BRAIN.