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Doctor insights on: Venipuncture

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What is venipuncture?

What is venipuncture?

Drawing blood: Veni=vein, and puncture=sticking with a needle. This is done for drawing of blood for testing, inserting a needle/catheter for intravenous access to give fluids/medication, and for access into the venous circulation for performing procedures/specialized venous radiological imaging. ...Read more

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Could you describe how venipuncture works?

Could you describe how venipuncture works?

Puncture vein: Venipunture is the process of puncturing a vein to gain access for drawing of blood (by aspirating with a syringe), inserting a catheter for IV purpose, or inserting a wire using seldinger technique to place a sheath. Direct puncture of the palpable vein is performed often using a tourniquet above the access site. ...Read more

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What is the angle that venipuncture is performed?

What is the angle that venipuncture is performed?

Varies: There is no set rule on the angle of entry. For smaller veins close to the skin, the angle is more acute with the needle/catheter closer to the skin. Deeper veins may require 45 degree angle, and larger angles make for more difficult entry as the tip may easily penetrate the back wall of the vein. ...Read more

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What's the best pain medication for venipuncture?

What's the best pain medication for venipuncture?

EMLA (lidocaine and prilocaine) Cream: There is a topical anesthetic called Emla (lidocaine and prilocaine) cream that would work, but it is expensive and has to be applied at least 30 minutes ahead of time. ...Read more

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What are the problems that can come from venipuncture?

What are the problems that can come from venipuncture?

Few: In general venipuncture is safe, problem-free, and well-tolerated. Occasionally it may be associated with a poor sample quantity, more than expected discomfort, inability to access vein or obtain sample, hematoma, or the need to return for another sample attempt. Infection or other vascular issues are very rare. ...Read more

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Can i cleanse a venipuncture site with alcohol?

Can i cleanse a venipuncture site with alcohol?

Yes: You can absolutely cleanse a veinipuncture site with alcohol. Betadine and hebiclens are commonly used. ...Read more

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What would cause severe pain during venipuncture?

What would cause  severe pain during venipuncture?

Vein puncture: This procedure has minimal to no pain. If you have severe pain then one may ask were there numerous attempts, was the needle near a nerve? ...Read more

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What can cleansing a venipuncture site with alcohol do?

What can cleansing a venipuncture site with alcohol do?

Remove bacteria: Alcohol kills most organisms at the site preventing them from infecting the puncture site and of course from entering the bloodstream. ...Read more

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