Nurse close to 20 years ED, pediatric ICU background Paramedic for about 30.
I‘d have to lean towards, Vaso response, anxiety, fear as mentioned. See it all the time.
Adults covered in tattoos are the worst. Have to listen to them piss and moan about IV access, shots, blood draws.
Still have not figured out how a “sleeve” that takes hours hurts less than any of the above. Sure the medication may hurt, you have good veins, I’m in in a second.
Girl I work with, her husband is so afraid of needles she had to go with him, hold his hand, put a wet rag on his head. He passed out once and EMS had to take him to the ED.
Oh, I have zero tattoos