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Doctor insights on: Blown Vein From Blood Draw

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Can air in the syringe get pushed back into vein during blood draw when the let go of syringe plunger?

Can air in the syringe get pushed back into vein during blood draw when the let go of syringe plunger?

Not a problem: Tiny amounts of air are not dangerous. And with today's systems this should not happen. ...Read more

Dr. Ted King
1,879 doctors shared insights

Veins (Definition)

Veins are thin walled vessels that carry deoxygenated blood ...Read more


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How can I improve my blood draw? I have small veins and it takes 2-3 times to hit the vein and the flow slows down?

How can I improve my blood draw? I have small veins and it takes 2-3 times to hit the vein and the flow slows down?

Hydration: Drink lots of fluids prior to your blood draw. This should make your blood draw a little easier for you. ...Read more

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I had a blood draw today and now have about a 2-inch bruise running along the vein. Sore to the touch. Should I worry?

I had a blood draw today and now have about a 2-inch bruise running along the vein. Sore to the touch. Should I worry?

Bruise and swelling: May occur with blood draw. Application of ice and analgesic will reduce the pain. The bruise may last a few more days ...Read more

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Bad blood draw yesterday (venipuncture/8vials). Immediately:red/blue, v.swollen&painful. Now:flat, hard lump, bruise. Do ruptured veins heal? Just a leak?

Bad blood draw yesterday (venipuncture/8vials). Immediately:red/blue, v.swollen&painful. Now:flat, hard lump, bruise. Do ruptured veins heal? Just a leak?

Hematoma: The venipuncture for blood draw leaked and caused a hematoma outside of the vein or in the vein wall or both and this will heal in most cases without any consequences. I recommend ice in the first 2 days, several times a day (15 min each time) and switch to topical heat on day 3-4 and take ibuprofen as tolerated. ...Read more

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I have gotten blood draw twice on same arm now I feel thirsty and veins on Palm of hand by thumb and center spasms non-stop. No pain. What could it be?

I have gotten blood draw twice on same arm now I feel thirsty and veins on Palm of hand by thumb and center spasms non-stop. No pain. What could it be?

Unlikely blood draw: Unlikely from blood draw as they only take a small amount (1 tablespoon) so unlikely dehydrated. If a simple uncomplicated blood draw then there should have been no damage to tendons or nerves. ...Read more

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How to keep from fainting at blood draw?

How to keep from fainting at blood draw?

Tell phlebotomist: If you know that you faint after blood draw, tell the person drawing your blood before the procedure, so that they may position you accordingly and ensure that you rest for a while after the blood draw. It may help to be properly hydrated before coming for blood draw. ...Read more

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Could HIV spread by unsafe blood draw?

Could HIV spread by unsafe blood draw?

In clinical settings: Single use, disposable sterile needles are used. This does not create a risk for the tranmission of HIV to the person who is having their blood drawn. ...Read more

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Does HIV transmit during blood draw...

Does HIV transmit during blood draw...

HIV: If the blood drawer sticks themselves with the needle which has been in a vein or artery of an HIV+ person they may get HIV infection in this manner, but this is a very unusual occurrence. In order to get HIV you need intimate contact between a positive and negative person, either sexually, needle sharing, organ donation, etc. This is not an easy disease to acquire if you are reasonably careful. ...Read more

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Possible to get infection from blood draw?

Possible to get infection from blood draw?

Very unlikely: As long as the phlebotomist is trained, your risk of infection is low. Redness at the site of the draw is typically phlebitis, or inflammation of the vein where the needle went in. This is not an infection, and can be treated with warm compresses. ...Read more

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Why blood go up the tube during blood draw?

Pressure gradient: There is a pressure gradient that allows the he vein into the blood to flow from tube. ...Read more

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Is it normal to feel tired after a blood draw?

Is it normal to feel tired after a blood draw?

How much?: A routine blood draw for testing should not cause one to be tired. If you donated blood at a blood bank then the tiredness may last a day or so. ...Read more

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Which blood draw schedule is needed for accutane?

Accutane: It will depend upon your doctor. The ipledge program requires monthly blood tests. I have treated patients with Accutane for about 25 years and I require that they get weekly blood tests. It is a great drug but must be monitored closely. ...Read more

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I was wondering why people fear blood draw or injection?

Phobias: Some people may be afraid due to the pain associated with needle stick. Others have a phobia of seeing blood. For others, it may harken back to some unpleasant experience with healthcare providers. Phobias are by definition irrational. ...Read more

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What is safer for baby with suspected syndrome, amnio or blood draw after birth?

What is safer for baby with suspected syndrome, amnio or blood draw after birth?

Safer after: Always safer after pregnancy — an amniocentesis has a small, but real risk of causing you to lose the pregnancy. So, it is always safer to check after you deliver.

Good luck! ...Read more

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Terrified of blood draw, but need to do it. What type of relaxation aids are there?

Terrified of blood draw, but need to do it. What type of relaxation aids are there?

Relax: Deep breathing. They also have topical Lidocaine they can apply to make the pain much less. Bring an ipod or headphones and crank up the sound to focus your thoughts elsewhere. Ask them to use the smallest needle possible. ...Read more

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Why would I be feeling like this after blood tests? Held my breath during blood draw and had to sit back down

Why would I be feeling like this after blood tests? Held my breath during blood draw and had to sit back down

Not uncommon: Feeling dizzy or light-headed, or even fainting are not uncommon and do not indicate that anything is wrong with you, especially, it is no indication of your fortitude. Now that you know that it is likely to happen to you, plan to rest, preferably, recumbent, for a few minutes, after blood draw. ...Read more

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Had blood draw and now 3/4 hour later it is num and tingling and at one poin pain radiated up shoulder, scared?

Had blood draw and now 3/4 hour later it is num and tingling and at one poin pain radiated up shoulder, scared?

Phlebotomy Norms: Unfortunately it is common to have a temporary pain, numbness or bruising from a blood draw. I would advise being careful with this arm and if the pain worsens or if you become feverish then you contact your physician. In most cases the temporary symptoms will subside and all will be well. ...Read more

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Started b complex day before blood draw didn't take one morning of draw but b12 was >2000 is this from the one pill day b4?

Started b complex day before blood draw didn't take one morning of draw but b12 was >2000 is this from the one pill day b4?

I would doubt it: As the usual normal value is about 180-900 ng/L, your reported value (if in these units) should not result from one B complex vitamin pill (or even daily pills!). As a high B12 level is uncommon, I would be suspicious of the test and repeat it before doing anything else. Rare causes of elevation are liver disease and bone marrow problems including some leukemias. ...Read more

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I had blood drawn from a vein 2 or so hours ago and was wondering if it's safe to swim? Could the vein get infected in the pool?

I had blood drawn from a vein 2 or so hours ago and was wondering if it's safe to swim? Could the vein get infected in the pool?

Safe: Almost all blood draw puncture sites stop bleeding in a minute or less. Unless you are still bleeding for some reason, it's perfectly safe to go swimming. ...Read more

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Can the fingertip blood draw for diabeties detect all diabeties known to man? They say I don't have it but my symptoms indicate I do

Can the fingertip blood draw for diabeties detect all diabeties known to man? They say I don't have it but my symptoms indicate I do

Diabetes: Diabetes is diagnosed with a fasting glucose less than 125. Glucose should be less than 145 two hours after a meal. Another test, hga1c above 6 may mean diabetes. Symptoms of excess thirst and urination with blurry vision, muscle cramps and weight loss are common symptoms of diabetes. See your doctor to get more tests done for a real diagnosis. Usually not going to diagnose diabetes on finger sti. ...Read more

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I had a blood draw Fri and they messed up My sample for Cotinine. I smoked one cig the week before & 3 this sat. How long before I can retest?

I had a blood draw Fri and they messed up My sample for Cotinine. I smoked one cig the week before & 3 this sat. How long before I can retest?

On the safe side...: On the safe side 10 days for urine and blood tests. Staying well-hydrated, exercising & avoiding drinking alcohol may decrease detection time. To be really safe, however, take this opportunity to QUIT SMOKING altogether. You've already shown that you can do so for a week, so why not for the rest of your long healthy life???? ...Read more

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Could my vein be scarred from an IV? It hurt for 2 weeks. Had blood drawn a month later from same vein and was really painful(usually doesn't hurt).

Could my vein be scarred from an IV? It hurt for 2 weeks. Had blood drawn a month later from same vein and was really painful(usually doesn't hurt).

Phlebitis: Inflammation of the vein is referred to as phlebitis and clot formation in the vein is thrombophlebitis, which can be superficial or deep (DVT). IV insertion can be a cause of your symptoms of pain at the vein site. If there is redness in the surrounding area, it should be immediately treated with antibiotics etc. Pl have your doctor examine it for definitive diagnosis and treatment as indicated:) ...Read more

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Yesterday I had blood draw from my arm and today, I scratch it and now a knot came up as a size of a dime, is this normal and should I be concerned?

Yesterday I had blood draw from my arm and today, I scratch it and now a knot came up as a size of a dime, is this normal and should I be concerned?

Not unusual: The knot is from bleeding under the skin after needle was removed. It's called a hematoma. It will resolve in a week or two just like a bruise would. No cause for alarm. Thanks for trusting HealthTap! ...Read more

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I had a blood draw around 1 PM. Immediately after it was swollen but it's gone down some. It hurts pretty badly tho. Is this normal? What should I do?

I had a blood draw around 1 PM. Immediately after it was swollen but it's gone down some. It hurts pretty badly tho. Is this normal? What should I do?

Hematoma: Blood draws can often be painful, locally at the site of course. Applying pressure to the area, sometimes an ice pack, and even taking Ibuprofen or acetaminophen can help, and often time itself will alleviate the pain. If it persists, then see the doctor to be safe. Best wishes. ...Read more

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What is the definition or description of: blood draw?

What is the definition or description of: blood draw?

Blood- needle remova: Needle removal of blood from your arm by a vacuum tube or syringe. ...Read more

Blood Draw (Definition)

Needle removal of blood from your arm by a ...Read more