That’s also not counting the size gauge needed for the infusion rate. At the hospital for adults it’s usually 18-22 gauge with common being 18-20. Lower the gauge number, the bigger the needle and higher the rate can be. For the IV hydration job I did for awhile we infused the hydration bags, (1000mL) in 1-2 hours. That’s pretty fast when you take into consideration we only bolus that rate in the hospital if it’s an emergency such as them being hypotensive, bradycardia, sepsis, etc.Who knows what needles they use, but the phlebotomists do use them and young or old there are those that get the bruises. But again, I’d doubt they’re a tenth as health as Vinge.
But then in the other end of the spectrum it can cause damage to your kidneys or heart from the hypervolemia and your body trying to remove it, though cyclists would sweat a lot out.