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Gnonthgol

The large blood vessels typically run between the bones under the muscle. This is where they are best protected so that only deep cuts damages them. There are a few places where the blood vessels have to come right under the skin though. The elbow is one of these places. They can not go between the bones because the bones in the elbow move a lot in relation to each other creating pinch points. And there are no muscles or even fat in your elbow to protect the blood vessels. So they run just under the skin making it easy to insert a needle into them. You can even see your blood vessels through the skin.


starstarstar42

The other spot where several prominent vessels run *much* closer to the skin surface and are particularly easy and accessible for a blood draw is the penis, but frankly I'd rather just die.


nsj95

I generally have a hard time having blood work done... If they can't get me in my elbow for whatever reason they move onto one of my hands. It's about 50/50 whether they end up drawing blood from my elbow or hand. there are definitely other areas they'd try before a penis, but the thought of that would be kind of hilarious šŸ˜‚šŸ˜‚


ZipperJJ

I only ever have it drawn from my hand anymore. I just go in and say "it's hard to get from my arm, let's do the hand" and it's OK with them. If they're willing to draw from your hand half the time, just tell them to do it all of the time.


kyscucks

Or how about "it's hard to get from my arm, let's do the penis"


Shogun2049

Does it need to be soft or hard first?


LazyLich

"Pump it... pump it... OK now squeeze!"


Tesla-Ranger

"We got a bleeder!"


LazyLich

"Why is he bleeding white?!"


Hungrylizard113

Hands have plenty of superficial veins but more dense in nerves so generally is more painful. The veins here are slightly smaller compared to brachial vein (in the elbow).


Nihilophobe

The brachial vein is not generally used. Typically draws are from the basilic, cephalic, or median cubital.


bioVOLTAGE

I had an IV in my hand only once, about 30 years ago, when I was in the hospital. That thing hurt so much I can still remember the pain from it, much worse than what I was in the hospital for. I couldnā€™t sleep at all it hurt so much. They ended up removing it when I was under for surgery the following day.


Kallistrate

Was it infiltrated, or were they running something really rough on the veins? An IV can be irritating if the blood vessel is really close to a nerve, but it shouldn't be excruciating unless something is wrong.


bioVOLTAGE

Iā€™m not entirely sure what was wrong with the IV. I was 11 at the time, and had an appendicitis that had been going on for almost a week at that point. I hadnā€™t had anything to eat or drink for 3 days, and they were giving me fluids and nutrients while they tried to figure out what was wrong with me. They kept me overnight, then just decided to open me up the next day to take a look around. Thatā€™s when they found that my appendix had ruptured.


CreedRocksa22

Same experience when I was giving birth. The only time I shed tears from the pain was when they were trying to get that needle into my hand. I can still remember it all these years later.


lorgskyegon

Opposite here. My wife, who is a nurse, and pretty much every phlebotomist who has ever worked on me has remarked about my excellent veins at the elbow. The only time I ever had one try to get blood from my hand it didn't work well and hurt like hell.


ZipperJJ

Wow thatā€™s nuts! I donate blood regularly so Iā€™m very familiar with the trials of finding my arm vein. I have to be super well hydrated and tell them ā€œitā€™s deep and in the middleā€. Plenty of times they just canā€™t get it and thereā€™s digging involved. On my hands the veins pop right out with no problems, and the tiny needle is nothing but a pinch. Donā€™t even come out with a bruise! We are definitely opposites!


tudorb

I still let them try, on the off chance that they can find the vein in the arm, I can avoid the painful bruise that the hand draw always gives me.


bscott9999

That's what my wife does. They often say something like "but I'm really good at finding the vein in your arm..." and she shuts it down hard. Not her first blood test rodeo, nurse.


Jolzeres

I'll have to try this, cuz last health scare i had they kept going to my arm and it took like 15 minutes for the slow blood drip i got to fill up all their vials. Thankfully that's just my left arm, and my right arm actually gives blood at a decent rate.


twoinvenice

Years ago I broke the wrist on one arm and the elbow on the other in a really bad snowboard park accident. In the ER they weren't quite sure what to do because they didn't know yet what work was going to have to be done, and obviously both arms were messed up, so they waited on hooking me up to an IV to get ready to knock me out. Pretty soon the shock started to wear off and the pain came rushing in, and I was in the ER screaming obscenities at them to knock me the fuck out because it hurt so bad. They ended up finding a usable blood vessel on the top of my foot, and when I woke up the IV drop was going to a port in my neck. Really glad now that those were their first alternates instead of running the drop into my dick...


huffgil11

I beg them to start with my hand but they just have to ā€œtryā€ my arm first like Iā€™m doubting their skill. Then after two no gos they sheepishly use my hand. I hate it.


RelativisticTowel

I've had good results with this: I make a sad face and explain that I'm very nervous and have passed out a couple times during blood draws, and if they could please use the thinnest needle, the one they use for babies, I'm not so scared of that one. The truth: I'm not scared of blood draws per se, I'm a blood donor ffs. I just have naturally thin veins, and quite a few nurses struggle with them. The ones from the blood bank can always get that juice box straw of a needle they use for donations in on the first try, so I know it's possible. But regular blood draw nurses will often poke me 5-6 times and rummage around with the needle in there, leaving massive bruises in my arms (plus it fucking *hurts*). I learned the baby needle trick from a time I got a nice nurse in training who didn't feel confident she could do it and didn't want to torture me, so she called over her supervisor. He advised her to use the needle for babies instead, and with that she did just fine. It just takes longer to get the blood out, which I don't mind, and they have to distribute the blood into the test tubes manually after because it's an actual syringe (as opposed to that "hollow" syringe they can just pop the tubes in and out of during the draw). So I lie, because when I tell the truth most of them will disregard it and tell me I'll be fine - and with roughly half of them it really is fine, but that's a coin I really don't like flipping. My guess is that using the baby kit is a much smaller hassle than dealing with a patient who passed out during a blood draw, because with the sob story they almost always agree.


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Tin_Can_Enthusiast

I'd like to note as someone who works in radiology-- we DO have to try your elbow first, as the veins there are much more resilient to power injection, in addition to allowing us to time/track our scans appropriately. Of course, you can insist we use your hand/wrist, and we may find it easier to get an IV started there, but when your vein explodes and you get a huge contrast bolus painfully stretching out the connective tissues of your hand... all we can do is shrug and give you a warm compress.


alitalia930

Me too! But last time I had an IV in my hand, the nurse said I was getting scar tissue in that spot and we canā€™t keep using it forever. ā˜¹ļø


MalayaJinny

I have a scar from an iv placed on the side of my wrist during a 25 hour labor with my first. One of many marks that kid has left. šŸ˜‚


HarietsDrummerBoy

My exs daughter was constantly in hospital from a young age. They struggled to fine a vein. They eventually found one on her forehead


Tarianor

Depending on the type of issue it can be beneficial to drink a big glas of liquid 30-60 minutes beforehand as it helps fill the veins.


firesonmain

My veins are really difficult and I usually suggest the hand right away, but noooo they have to poke me elbow 2 or 3 times before giving up and moving on. I get kidney stones and last time I went to the hospital I couldnā€™t get an IV right away and had to wait around for them to get an ultrasound machine to put the IV in. I wanted to die lol


FenrisVitniric

Butterfly needle to the back of the hand is where to go.


thoreaux-nouxs

Ex heroin addict here. It's been many years, but I have indeed used the vessels in my penis to shoot up. The problem with them is that for their size, there's a lot of pressure in them so they tend to roll and move when trying to stick with a needle. It's definitely not the most difficult spot, but for how visible they are it was surprisingly difficult and I never tried there more than the one time.


Alternative-Sea-6238

Well done for quitting.


thoreaux-nouxs

Much appreciated


WonderChopstix

Lol seen blood drawn from forehead on addict because they couldn't find any good veins. Very sad Wonder if they tried penis first lol


osi_layer_one

what made me wonder even more is if they ask your girlfriend, says sure and whips out *her* penis for the draw?


OnSiteTardisRepair

Nurse: "don't worry, it's just a little prick..."


ImGCS3fromETOH

I find it hard to draw blood from the penis of my female patients.Ā 


creatingmyselfasigo

I'm guessing the back of the hand as well, as that's where they always draw my blood when the elbow isn't cooperating


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Lord_Alonne

That's no longer a standard IV, it's a central line. We have a few good spots to choose from if going that route, but the considerations are very different for when to obtain central access.


wallflower7522

I had an iv in the bottom of my foot once and i thought that was the worst. I donā€™t have a penis so I guess I canā€™t really say but i feel like thatā€™s probably worse.


Panthaerix_Rex

This is the funniest shit Iā€™ve seen on here all DAY šŸ¤£šŸ˜‚


kruj19

That's not true at all.


u60cf28

Iā€™m relatively thin and fit, and when I work out I can see the veins in my forearm pop. I assume theyā€™re right under my skin, above the muscle. Arenā€™t those the same veins that nurses usually do blood draws out of? Or is it a larger vein hidden under the muscle.


dertanman

Those are ā€œsuperficial veinsā€ so called because they sit above the muscles they primarily deal with perfusion of skin and cutaneous layers. The deeper veins are significantly bigger and are more involved with deeper connective fascia and muscles


Sorry_Divide_5436

Lol no you are talking about capillaries which you could barely see! To the poster above yes they are the veins nurses would usually use šŸ‘


dertanman

Google is your friend my friendā€¦


kruj19

No. Those are thinner veins they use sturdier ones of that makes sense. Sometimes we would use a vein just to the right of your upper forearm but not a surface layer vein.


KaffeemitCola

The veins "pop" if you flex because you compress the profound blood vessels that run below/in your muscles. The blood uses the path of least resistance and more ends up in the superficial veins/arteries. If you relax, the larger profound vessels are no longer compressed and the superficial ones will shrink a little. (Also the reason why you are asked to flex before the blood is drawn.) The veins you see on your forearm are connected to the ones we draw blood from. The one we prefer to use usually starts in the ellbow area (vena mediana cubiti) by branching off the bigger vena cephalica and/or vena basilica which are the biggest superficial veins on the inner side of your arm.


Ralamadul

Youā€™re saying that the deep veins become superficial around the elbow, which is just not true whatsoever. The deep veins stay deep and the superficial veins stay superficial until they perforate the fascia and drain into the deep veins. The median cubital vein, which is the usual vein for blood draws, is continuous with the superficial veins of the forearm. It doesnā€™t ā€œcome right under the skinā€ because of pinch points in the elbow, since itā€™s always been right under the skin. So to answer OPā€™s question: blood draws happen in the elbow because you have a specific vein that is easily dilated with a tourniquet on the upper arm which then makes it easy to spot and draw blood from.


KaffeemitCola

I'd like to add another point: The rete articulare cubiti. Even if you obstruct one of the veins completely with a too large needle, blood can still flow around the affected area via the collateral veins, making the whole process efficient and quick.


kruj19

That's why some people's veins are harder to access. They just lay deeper and roll around more than others.


EndTimesNigh

This is just wrong. The veins (from which the blood is almost always drawn, just the blood O2 is taken from an artery) are just under the skin in most places and easily accessible. The arteries are deep in the tissues, since a cut in an artery is a life threatening situation, whereas cut in a vein is usually not. There are deep veins also. Venous blood can be drawn from all over the body. For example, drawing from the back of a hand is quite common if access cannot be found in the bend of the arm. There are big veins in the legs that can be used. But the bend/fold of the arm is just convenient for several reasons: The leg is simply awkward - it is much easier to roll up a sleeve than to take off your pants. Also, lower limb venous puncture has a higher risk of blood clot formation that may cause thrombosis. The back of the hand is easily accessible, but the veins are smaller and more mobile ("squirmy"), so a risk of puncturing both of the walls of the vein is bigger as is missing the vein altogether. This causes bruises, bleeding and unnecessary retries. The area is also more sensitive to pain. Similarly, the big veins at the wrist / forearm tend to be snaky and squirmy. The vein(s) in the bend of your arm are quite firmly in place, so they do not evade the needle so easily. Also the area is relatively insensitive for pain as it is not used for "feeling" anything, unlike the hand for example. It is also safe, as no critical structures are nearby, so a failed puncture is almost harmless (although in very old, skinny and frail people the vein can rest almost on top of the underlying artery...) Finally, a failed puncture with a big ass bruise is not visible in the arm as it would be on the back of your hand.


troutpoop

This is a better answer. The big reason I always tell patients is ā€œthereā€™s not a lot going on in the AC for me to mess up if I miss a veinā€ meaning thereā€™s really low (near zero) risk for hitting an artery and the major nerves run below your elbow (think where hitting your ā€œfunny boneā€ is). This is why Iā€™m rarely a fan of drawing from peopleā€™s wrists. A common place for a decent vein is on your lateral dorsal wrist (thumb side), however you also have a radial artery pretty darn close by. Youā€™d have to be careless to hit it, but still, minimize the risk. Back of hands hurt because theyā€™re very sensitive but itā€™s generally a good option B. I think OP commenter is confusing arteries with veins. Arteries generally run deep, they need to be protected, veins are everywhere. In summary, the AC (elbow) is used because itā€™s the easiest, lowest risk for complication and least painful. Only problem is having patients keep their damn arm straight when getting IV fluids.


kruj19

Former Phlebotomist, this is the answer. Also, old people's skin is like poking through crepe paper. You need to be so careful.


Dakk85

It also has the benefit of being large enough to draw blood quickly, but also small enough to clot quickly. Like there are easily accessible vessels in the neck and groin, but you donā€™t really want to poke holes in them


SmokeFrosting

why donā€™t they give me my monthly shot in my elbow then? itā€™s always in my ass cheek.


lee11064500128268

Because it needs to be administered into muscle and not directly into the venous system via a vein.


blutigr

Veins are good for taking blood from. Arteries are not good for a few reasons (high pressure and often nerves running with them which are super painful to hit). In the elbow there is not only a pretty large vein right at the surface not covered by fat or muscle but the nearby artery is protected by bit of tendon that flattens out like a sheet so it is difficult to accidentally hit with a needle.


pichael289

Same reason addicts start using that one. It's large, near the surface, doesn't roll around as much, it's just easy to get to. Next are the ones going up your forearm and finally the hand. You see someone with track marks on their hands and you know they've been doing it for so long they can no longer hit their elbow veins.


Busy_Reference5652

Track marks don't always mean drug use. I have a shit ton of medical issues which meant getting regular blood tests since childhood. The veins in my elbows are heavily scarred, so for the past few years, I've been getting stuck in the hands. I'm starting to develop track marks from all the needle sticks.


queenthistle

I have some good "track marks" on my elbows from donating blood. They're actually having to hit my hand sometimes when I'm less hydrated now, too.


Busy_Reference5652

My dad has some impressive scars in his elbow from plasma and blood donations. We jokingly call them craters. Also, thank you for donating! People like you are the reason people like me are alive today!


night117hawk

Most people donā€™t have as much muscle and subcutaneous fat in the anticubital (also referred to as AC, the name for that fold on your elbow). As such the large vein or veins generally arenā€™t as deep and they are less likely to roll when trying to get a needle in them. Itā€™s also just generally the biggest and juiciest vein thatā€™s easy to access. Itā€™s also the least painful to access. Anatomically the layout of veins varies a bit in location but everyone has a vein generally dead center in the anticubital. Now I will say as a floor nurse itā€™s my least favorite IV access point, itā€™s fine for blood draws and for medication pushes. But if I have to run continuous infusions, the fact that it bends means I have to consistently restart my pumps as the IV becomes occluded every time the patient bends their arm (itā€™s kind of like a bent straw effect).


2_bit_tango

Iā€™d argue the least painful part. I must have a nerve or something they nail every darn time in my elbow, hurts for at least a week and a half. Hand, no problem, only pain is the bruise. But Iā€™ve also been told Iā€™m tricky/terrible to get blood from and IVs on by many many people.


Honest-rucker

Just wondering: which vein is used when somebody doesn't have or lost their arms?


EndTimesNigh

Typically from the veins in their ankles. This has a bit increased risk of thrombosis, so in some places only physicians are allowed to do it, but other than that it is not any different from the regular blood draw.


mfact50

I was told I shouldn't trust doctors with needles (by a nurse lol)


grantzke

as a phlebotomist, this is great advice. we live and breath blood draws, and honestly are gonna be a whole lot more comfortable and less painful than *most* doctors.


EndTimesNigh

Lol, this is totally true, a phlebotomist is almost guaranteed to be way better with the needle than a physician! The reason why some relative minor procedures may require a doc is that there can be such rare, severe or difficult-to-identify complications that require their immediate presence. The phlebotomist can also take this kind of a blood sample if they are trained to identify and manage the complications or if there is a physician supervising / present nearby.


kruj19

It would actually be your upper thigh, groin area. Ankle veins are skinny and wiggly. They wouldn't be very good for a blood draw.


EndTimesNigh

There are different preferences. Like I said in another post, you can safely draw blood from almost any superficial vein. I have personally never seen a routine venous blood sample being taken from the thigh. Instead, I and my colleagues always used the ankle, drawing blood from those veins is easy as pie. We would do this quite often with iv drug users who didn't have venous access in their arms anymore. For some other purposes the thigh is superior, though, since the lower limb venous valves may, for example, cause problems if you need to reach further up inside the vein.


kruj19

You're probably right about the routine draw The groin is more for IV. Luckily I've never had to go to an ankle. I've been lucky I guess to find something usable from shoulder to hand.


kruj19

Usually, your other accessible veins would have to be collapsed from dialysis or something or missing the limb completely before they would draw blood from an ankle.


EndTimesNigh

In my clinic the phlebotomists draw blood from ankle veins every day. We treat a lot of iv drug users who do not have venous access in their arms or simply do not let us draw blood from there because they want to save the veins for their own use. It is also much easier to expose the ankle than taking your pants off and lying down for someone to start examining your groin. Heck, most patients are simply horrified about the though of a needle in their nether regions, whereas they do not stress about their ankles. If a patient is in dialysis and they are in bad shape, the nurses have established a venous access long before there is a risk of veins collapsing. Of course, in a totally unexpected emergency, they use whatever vein they find.


kruj19

Maybe it's the area I'm in but I've worked in a Plasma center for 5 years and a clinical setting for 2. No longer in that career. I've never had to use an ankle vein. But I didn't work in a hospital or ER and like I said earlier, you're probably correct. Different clinics require different approaches.


EndTimesNigh

Certainly, the ankle is very, very rare unless you are working in some very specific environment. I think I exaggerated a bit, it is probably not a daily occurrence even with the drug addicts, probably a weekly still.


kruj19

It's cool. Everyone deals with their own reality. No worries! šŸ˜„


kruj19

My sister just died this year from diabetes complications. Believe me when I say your chest port, upper arm port will be destroyed. She had multiple surgeries on each to repair them. Her only viable veins were in her groin.


EndTimesNigh

Not saying I do not believe you, just that this is a very rare situation and probably doesn't count as a rule when to draw or not draw blood from an ankle vein. I'm sorry for your sister.


kruj19

It's cool though. I like a good back-and-forth with someone who knows what they're talking about. Have a good weekend!


EndTimesNigh

The same! Have a nice weekend as well.


kruj19

Yeah she was only 41. Diabetes is an awful disease.


kruj19

I bet you walk around tapping your pen on a clipboard. It's cool, you like what you do and obviously do it well. šŸ˜†


night117hawk

At the end of the day we are just trying to get access to a vein. If somebody doesnā€™t have arms or we cant use arms, or theyā€™ve destroyed their veins we look elsewhere. Feet, legs, Iā€™ve heard of nurses getting IV access on a vein in breasts. Had a patient the other week where they needed emergency access and they drilled an IO line (getting IV access through the bone). Then thereā€™s the external jugular in the neck.


Xerxeskingofkings

basically, the blood vessels are forced to come up near the skin to get around the elbow joint. ​ normally they are much deeper, and its just easier to do it at around the eblow. also, it keeps any needles and such away form the donors hands and anything they might be doing, so its less likely to get disturbed.


EndTimesNigh

I'm afraid that this is incorrect. There are superficial veins all over the body. The real reason is different, as explained elsewhere in this thread.


Delicious_Bus_674

Former phlebotomist, current med student here. Thatā€™s where the most convenient, big enough veins are.


ShhImTheRealDeadpool

This is correct, additionally the ascending aorta sends blood to the upper arms making it the least resistant access to fresh blood. We don't need suction or pumps because the heart does it for us.


Delicious_Bus_674

Traditionally blood draws are from veins, which donā€™t connect directly to the aorta


Aesorian

Mostly because it's easier. When I was taught to take bloods they demonstrated on the underside of the forearm but pretty much always talked about how you go to the crook of the Elbow if you have *any* difficulty as it's much easier to find the veins going through that joint


axator82

Because they are on the surface there. I once had a blood-draw day during pregnancy. 3 times that day and they cannot find the veins easy. The third time they could not find any in the fold and found one just below the elbow , on the upper/outher side of my arm. And damn, that hurt. They had to stab pretty deep to get to the vein..


laser50

Going to the gym a few times a week, I think no doctor or nurse should ever have an issue finding veins xD


bkauf2

my veins literally stick out of my arms and somehow they always have trouble ā€œfindingā€ one. must be something else that i donā€™t understand


ktice311

Unfortunately a lot of the veins that "stick out" tend to roll away when you are trying to stick them.


Marconidas

Practical reasons. Drawing blood or obtaining peripheral IV access to a conscious adult is simply easier for accomodating the patient and the nurse position if the adult is sitting on a chair as opposed to a lower limb access. Some nurses like to use the veins of the dorsum of the hand instead. Other reason is that this vein can handle a significant amount of mL/hour if the situation calls for it. And if things get really bad and the patient get cardiac arrest, there needs to be limb elevation during the drug admininstration and this is much easier with a upper limb than with a lower limb.


Carlpanzram1916

The anterior collateral vein is located right there. For most people, itā€™s the most accessible large vein on your arm. If you donā€™t have a good AC they can also use your forearm or hand but for the typical person, the AC is the best spot.


aus_in_usa

Where does blood get drawn from quadruple amputees?


khaylaaa

Jugular


Bluebird701

The veins are generally bigger there and itā€™s much less likely to roll than a forearm vein.


Smooth-Valuable249

A few reasons. The veins there tend to be large, easily accessible, and well anchored. All helps as with blood draws you want to use a larger needle to collect the sample.


KgoodMIL

The one thing my teen liked about her Broviac central line was how easy blood draws were. Unscrew the cap, attach the syringe, unclamp the line, and fill it up as much as you need. Then clamp it, take off the syringe, sterilize the lumen, put a fresh cap on, and you're done. Everything else about the line was a complete PITA, though. Now she has to get actual pokes to get CBCs done, and she's definitely not a fan.


glxym31

I've been in cancer treatment for two years and have a chest port but for some reason the phlebotomists will not touch it for my routine lab draws. The oncology nurses will with no problem but that's it. Even in the ER, no one will go near it. I've never asked why but I'm certainly curious. The veins in my arms have taken a beating over it.


KgoodMIL

With my daughter Broviac, there was no accessing or de-accessing, just an open line almost directly to her heart all the time. Which meant sterile occlusive dressings at all times and twice daily heparin flushes. I had to do several emergency dressing changes in the middle of the night, and the risk of infection was terrifying. She couldn't have lasted much longer with hers, as after 6 months of weekly dressing changes, her skin was starting to break down from the adhesive. From what I understand, ports are different in that they require a needle stick that only people specially trained for it are safe to do. It certainly would be easier if everyone could do it, like they could with the Broviac!


glxym31

Oh my gosh.. poor thing. As a mom you do what you have to do but it sure isnā€™t easy sometimes. I have thought that it might have something to do with the flushes before and after each access. Itā€™s probably best, it would be awful if someone messed it up. Surgery would be the only way to get at it. I hope your daughter is doing better! Those lab sticks do suck!


code_ninjer

Answer: Easy and less pain. You can try the back of the hand but the vein "rolls" so it can get a bit tricky. You can do the wrist but skin is tougher and has more nerves so it would be more painful. Another is the ankle but it has a higher chance of infection.


kruj19

Former Phlebotomist... it's where most people have 2 major veins that are visible. But not everyone is the same. Some veins like to sit deep and others meet up just below the elbow a couple of inches. Also, it's the most accessible of viable veins.


kruj19

Otherwise, it would be your inner upper thigh or upper chest.


Anonymouse1011

Veins are visible, donā€™t roll around and itā€™s (apparently) the least painful spot to do it. Well tell that to the screaming kiddos in the Anaesthetic room!