I had a patient yesterday who was hypoglycemic. Previously, I'd placed her IV in that diagonal vein in the AC that I've used 100x... Or so I thought. She had an episode of hypoglycemia and had to get D25%. I started slow pushing it, but she complained of warmth and feeling flushed, and her arm was looking flushed. I had probably given 2 cc at that point. So I diluted it in 100 cc NS and hung the infusion over 20 min. She had another episode of her distal arm getting flushed and mottled, though it remained warm with sensation, a strong pulse and no edema. I slowed the infusion more, her arm started to go back to normal. The whole time, the line flushed and drew without pain or complications. Later, the oncoming nurse said he thought the line was pulsatile!!! I totally trust him, but I never noticed a pulse, there was no back flow without me pulling back, and the blood I drew was dark red. I even let it free-flow for a second and it didn't spurt. The tech who d/c'd it said it didn't bleed when taken out. Does it sound like it was arterial?! I am so upset to think I might have put DEXTROSE of all things into an arterial line!!! I have called the floor she's admitted to 3times and the nurses say her arm is fine and she's not complaining. Last time I checked on her was 16 hrs after this whole mess. How soon would tissue damage show itself though!? I can't think about anything else until I know she's going to be OK!!!