Struggling to Maintain Consciousness After a Blood Draw

It started as a typical blood draw for a physical with a medical assistant I still believe is more than competent and great at her job. We only had three vials to fill, but apparently I didn’t have that much blood to spare.

She found a nice vein on my left arm, but it rolled on her. She suggested I come back next week, I said I couldn’t come back and offered my other arm. I’d rarely had a vein roll on me, I’m usually pretty easy to prick, but I most likely hadn’t drank enough water and I’d been fasting for around 17 hours.