Sharp twinge in the arm a few days after blood work?

Question

when i got blood work done on friday (three days ago) i was kinda freaked so i clenched my fist. she had to tell me to release it. now ever since then, i've had a weird twinge whenever my arm is flexed the tiniest bit while i stretch it out. like reaching out to get something, it'll feel like someone pokes me hard on my forearm about two inches away from my elbow joint. that was where i got the blood drawn from. it's scaring me.. could it be because of my clenched fist and it did something to a muscle? i'm really starting to worry. i hate blood and really just don't want to get it checked out so i want to make sure i'm ok or if i can do anything.

Answer 1

you are actually supposed to clench your fist when you get your blood drawn. i dunno why she asked you to stop. i get my blood drawn quite a bit, so i know how its supposed to go. i seriously doubt it is something bad from the blood draw. if it doesnt go away in a week you should probably get it checked out, but i wouldnt worry for now.

make it a good day

Answer 2

Could be nerve damage in the arm, or the blood work took its toll on you're arm and now the muscle's in you're arm feel constricted.

One of 2 things I suggest, you could either see you GP(best option), or wait it out and relax.

You said you last had work done on it on Friday, so today being Monday it's still not enough time to asses whether its nerve damage.

Answer 3

Normally, they want you to clench and unclench your hand to "pump" more blood into the veins, which makes them larger and easier to hit with a needle. While it is difficult to say exactly happened, it is not uncommon for the puncture site on the vein to leak for a few minutes after the speciman is obtained. Some of this leaked blood can settle and then harden into a small ball, called a hematoma, which will gradually be reabsorbed into your body. The flexing action may be causing this hematoma to exert pressure on an underlying nerve and/or muscle. If it persists longer than a week, see your doctor.