Vein Warmers

Because of my health issues, I have to get bloodwork done frequently. The vein in my right arm cannot be used for blood draws, and after ten years of frequent use, the one in my left arm is not cooperating well anymore. There is a lot of scar tissue, and I do not envy the poor lab techs who have to try to get the needle in. One of them suggested that warming up my arm before the appointment might help. That got me thinking—since I am a quilter, I could probably sew something…

Thinking of my Dinkelmaus, I decided to make a microwaveable spelt bag and needed a way to attach it to my arm so that I would not have to hold it in place while driving to the lab. I measured my arm, figuring out the dimensions I needed, especially the circumference to keep it secure. My first attempt ran into some problems. I decided to iron a very thin stabilizer onto the fabric for the straps, and even though it only added a tiny bit of thickness, it was enough to cause issues with the Kamsnaps I used as closures. They would not set properly and kept popping out—they just did not have enough grip between all those folded layers.

Vein Warmers

I took everything apart and made new straps without stabilizer, and now the vein warmers work like a charm. I made one for my arm and another for the back of my hand—sometimes they have to draw blood from there, so I figured it was best to be prepared. Since I started warming up my arm, there has been no trouble getting blood from the vein, so these things definitely work. I cannot give you exact directions or dimensions since it depends on the size of your arm, but if you think one of these would be useful for you, just wing it—it was not very difficult.

Just one word of caution: the skin on your arm is very sensitive, so do not overheat the bag. I usually start with half a minute at 800 W, then another 15 seconds at the same power after turning it over—and even that sometimes feels too hot. Be careful and do not burn yourself!

Category: Personal Projects

5 thoughts on “Vein Warmers”

  1. what a brilliant idea. I have really deep hard to find veins. They always have to poke around alot to find one. I’m going to give this a try. Thanks!

  2. That is such a good idea. I’m a blood donor (well plasma, can’t give whole blood) and they always use a heating mat to lay my arm on, since my veins are also hard to stick a needle in. Beside the warmth they told me to drink a lot, since it makes the veins bigger. I normally donate early in the afternoon, so in the morning I drink 2-3 liters of water. Since I do that the donation works like a charm. Easy pricking the vein and the blood flows fast afterwards.

  3. What a great idea! Sometimes when I have not been well, they cannot find a vein or if you are dehydrated they can’t get the blood out. Will definitely have to make one of these.

    Great Work!

  4. Thank you for this idea. My son-in-law has an auto-immune disease that forced him to have a liver transplant 12 years ago. He also has frequent blood tests. I am going to ask him if he would like to try something like this and if he agrees, I’ll make it for him!

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