why is the median cubital vein used for venipuncture

Ask the patient to make a fist and not pump the hand. Register now Tubes with additives or clot, activators must be thoroughly mixed by gentle inversion, 5-10 times. Vein collapses when blood is being drawn from the vein. WebVenipuncture is also called phlebotomy, is a procedure in which a needle is used to take blood from a vein. Drake, R., Vogl, W., Mitchell, A. She attended New York University and her writing has appeared on various online publications. Using these veins tends to be more painful for the patient, since there are nerves running through the hand as well. Always remember to ask for help from seasoned nurses and seize opportunities to practice your skills. The practice of phlebotomy is not something that can strictly be learned from watching videos or reading a how-to guide but something that must be practiced repeatedly in a controlled environment with other trained professionals. All labels must include two identifiers . Kiechle, Frederick L. So Youre Going to Collect a Blood Specimen: An, Introduction to Phlebotomy, 11th Edition. I'm Kadia. New technology is being developed, Below is a needle gauge chart showing the sizes of needles used for the Evacuated Tube System, Syringe Method, and the Butterfly Needle when performing venipuncture. A fear of needles can cause a person to feel anxious, have panic attacks or even faint. Edwin Ocran MBChB, MSc The three most commonly used veins for drawing blood are the median cubital, the cephalic, and the basilic veins. Individuals taking chemotherapy. DO NOT SHAKE OR MIX VIGOROUSLY. Tables showing needle sizes Hi! These superficial veins lie within the subcutaneous tissue. Deliver blood specimens to the laboratory promptly. There are three veins most commonly used in venipuncture, or phlebotomy. Preventing dizziness or fainting and potential follow-up injuries due to a, fall: Be sure patient is seated in an appropriate draw chair and or lying in. 1. Select the appropriate vein for venipuncture. The basilic vein is kept as a last choice option. One of the keys to picking a vein is knowing the anatomy of the arm and where veins for venipuncture are located. WebThe median cubital vein is routinely used for venipuncture (taking blood) and as a site for an intravenous cannula. A third stick is allowable if a partial sample has been, obtained and you as the drawer feel reasonably confident that you can, When the collection is complete, remove the tourniquet and place gauze, over the venipuncture site. At times, none of the veins of the antecubital fossa will be felt. After blood has been added to a tube, gently invert the tube 6 to 8 times to mix the contents; do not shake the tubes. Large bruise caused by blood under the skin. This order of draw should be followed whenever multiple tubes are drawn during a single venipuncture. 10. It is a critical part of the health care world. We and our partners use cookies to Store and/or access information on a device. Preventing injury from improper immobilization Immobilize the patient, with care. The median cubital vein is used the most for its accessibility. Observe universal (standard) safety precautions. If blood is being obtained for blood cultures, vigorously cleanse the site with alcohol for 30 seconds, allow the alcohol to dry, and then swab in outwardly expanding, overlapping circles using chlorhexidine or povidone-iodine. Clinical Significance. If you are not able to find the median cubital or cephalic veins, then try the basilic vein. 8. Subscribe for the latest nursing news, offers, education resources and so much more! Veins in the foot and ankle should be utilized only as a last resort. Gloves are to be discarded in the appropriate container immediately after the phlebotomy procedure. Once blood is seen in the tubing, connect the vacutainers or use a syringe to drawback. Blood Collection Tubes. The cephalic vein is located on the lateral (radial) side of the arm, and the basilic vein is located on the medial (ulnar) side. The link you have selected will take you to a third-party website. 6. Stop advancing the needle, lower the needle to better align it with the vein, and advance it into the vein an additional 1 to 4 mm, to ensure that it stays in position during blood collection. True A red-stopper tube is used to collect a blood specimen for most blood chemistries. Identify the patient, two forms of active identification are required. A patient should never be stuck more than twice unsuccessfully by a phlebotomist. The cephalic vein is located on the lateral (radial) side of the arm, and the basilic vein is located on the medial (ulnar) side. Na Citrate Coagulation tubes light blue top tube, 4. Risks associated with using this vein include penetration of Clinical read more , or hyperuricemia) and also to avoid skin irritation. It is more difficult to find and access and has more nerves near it making it Do not inject blood into vacuum collection tubes; allow the vacuum to draw the blood into the tube. Apply gentle traction to the vein distally using the thumb of your nondominant hand to prevent the vein from moving. And, on some others it will be deeper in their arm. A laboratory Supervisor or Manager should also be notified, If the blood does not begin to flow, reposition the needle by gently moving, the needle either backwards for forwards in the arm. If a suitable vein is difficult to locate, try lowering the extremity and/or applying warm compresses or nitroglycerin ointment to help dilate veins. Explain the procedure and reason for the blood draw to the patient. Scarred areas. Reviewer: The cephalic vein is found on the lateral, or outside, of the arm. Although there is a considerable amount of variation, the median cubital vein often receives the median antebrachial vein as its major tributary. Place a tourniquet and clean the area for 30 seconds with an alcohol wipe. Caution must be taken to avoid arterial puncture. Apply the tourniquet 3-4 inches above the collection site. They are also a bit larger and have a thicker lumen resulting in a faster blood flow. Place a gauze pad over the puncture site and quickly remove the needle. Instruct patients to look away from the equipment and the procedure to help prevent a vasovagal episode. The Supervisor should be called to assess the patient. In fact, the majority of intensive care units require their nurses to possess these skills. The WHO has best practices that are key to preventing infection and being successful during blood draws. Wrist. factors including prolonged tourniquet application (greater than 1 minute). Small/thin veins. Learning anatomy is a massive undertaking, and we're here to help you pass with flying colours. The larger median cubital, basilic and cephalic veins are most frequently used, but other may be necessary and will become more prominent if the patient closes his fist tightly. How to find the vein? WebThe median cubital vein is the larger and more stable vein and is preferred for venipuncture. Recheck the site after a few minutes to verify the absence of hemorrhage/hematoma. The antecubital fossa is the area of the arm near the elbow. Most of the samples you are going to draw will be from that vein in the center of the arm. In such cases, the phlebotomist cant locate the median cubital or cephalic vein but the basilic vein is easier to find. Abnormal caving in of the vessel walls, stopping blood flow. together for emotional support and understanding across multiple locations to reach you in the community where you live. Insert the needle at a 15 to 30-degree angle into the vessel. All rights reserved. Having years of experience in laboratory work and phlebotomy, Kadia Constant enjoys sharing what he has learned. Dress the site with gauze and tape or a bandage. If a tourniquet is used for preliminary vein selection, release it and reapply after two minutes. Do not place, tightly or leave on for more than 1 minute. Once found, be sure to anchor it when inserting the needle. 5. Remove the tourniquet if you did not do so earlier. Instead, withdraw the needle partway before changing the angle and direction of insertion. This is a common misconception - pumping the hand does not increase venous circulation. Youll be the first to know about nursing news, trending topics and educational resources. Abnormal caving in of the vessel walls, stopping blood flow. One reason is because you may have hard-to-find veins or you may be dehydrated. It has the tendency to roll sometimes so care must be taken to anchor it when inserting the needle. Author: We worked with CreditCards.com to help nurses find the right card to fit their lifestyle. 3. Have appropriate back up staff as available. Verify that any diet or time restrictions have been met. Venipuncture is typically performed at the antecubital fossa (on the median cubital, cephalic, and basilic veins), or on the dorsum of the hand. The median cubital is typically well anchored, which makes it less likely that the patient will feel pain during phlebotomy, or bruise afterwards. If the child is old enough, collect blood as in an adult. If the vein is visible then you can already make a choice. Bergman's comprehensive encyclopedia of human anatomic variation. 10. The blood is normally drawn from a vein on the top It is usually easy to find as its near the surface of the skin and is usually larger than the basilic vein. Take care not to puncture too deeply and go through the vein. The median cubital vein connects the cephalic and basilic veins, which are the two major superficial veins of the upper limb. Coagulopathy is not a contraindication, but sites must be compressed for a longer time after venipuncture. C. Pull the skin tight with your thumb or index finger just below the puncture site. It is the best because its larger and rolls or moves less than other veins. The vacuum tubes are designed to draw a predetermined volume of blood. Due to its close proximity to, the brachial artery and median nerve, the basilic vein, which is located on the, pinkie side of the arm, should be used only if there is not another more prominent. The brachial artery (blood supply to the forearm and hand) lies deep to the basilic vein in the upper arm and bifurcates into the radial and ulnar arteries in the antecubital fossa or proximal forearm. Forearm. (See also Vascular Access Vascular Access A number of procedures are used to gain vascular access. Some persons have good veins and others have veins that are difficult to find. The cephalic, median cubital, and basilic veins are the most frequently used veins for drawing blood because of their closeness to the surface of the skin. Apply a tourniquet approximately 3-4 inches above the selected site. Place a tourniquet and clean the area for 30 seconds with an alcohol wipe. Increase in ratio of blood components to plasma. Nurses and doctors will sometimes draw blood from the foot when there are no other options. Transfer Device 6. Looking for a change beyond the bedside? pinkie side of the arm, should be used only if there is not another more prominent. Do not have patients make a fist or let their arm hang down during the blood sampling, because these maneuvers may cause various erroneous laboratory values (eg, increased potassium, lactate, phosphate). Ensure that the collection tube is completely pushed onto the back of the needle in the hub. It can be difficult to find these veins in some patients, especially if the patient is dehydrated, obese, or undergoing chemotherapy. Clinically Oriented Anatomy (7th ed.). The information we provide is grounded on academic literature and peer-reviewed research. Vein rolls when inserting the needle. Pediatric Pointers. Center for Phlebotomy Education, Inc. Ernst, Dennis J. and Catherine Ernst. 6. When using vacuum tubes, push each tube fully into the tube holder, use care to avoid dislodging the needle from the vein. Over time and with several repeated punctures, significant amounts of scar tissue builds up. Transfer blood drawn into the appropriate tubes as soon as possible using a Blood Transfer Device, as a delay could cause improper coagulation. The wrist is a last resort for drawing blood. Ask the patient to apply pressure to the gauze for at least 2 minutes. The median cubital vein (antecubital vein) is a prominent superficial upper limb vessel. The significance of this vein is its use in venipuncture, the procedure that collects blood for laboratory testing. Subscribe to our newsletter to be the first to know about our daily giveaways from shoes to Patagonia gear, FIGS scrubs, cash, and more! [5] It becomes prominent when pressure is applied upstream, which makes needle insertion easier. If you used a needle and syringe, ask, your patient or a parent to apply pressure to the site so that you can fill, your tubes. WebVenipuncture (sometimes referred to as venapuncture, venepuncture or even venu puncture) is the collection of blood from a vein which is usually done for laboratory testing. Adequate, pressure should be applied to stop the bleeding once the phlebotomy is, complete. Activate the safety device and properly dispose of the vacutainer holder with needle attached into a sharps container. Allow 10-15 minutes after a transfusion is completed before obtaining a blood sample. For adult patients, the most common and first choice is the median cubital vein in the antecubital fossa. That is the first choice for drawing a blood sample. I wrote an entire article about best tips for difficult veins. Become a Part of the Nurse.org Community! Place a gauze pad over the puncture site and remove the needle. In most cases, another puncture in a site below the first site is advised. Ask the patient to state their name and date of birth. Antecubital fossa. Rolling veins. Gloves are to be worn during all phlebotomies, and changed between patient collections. Wash hands in warm, running water with a appropriate hand washing product. Do not wave, fan, or blow on the area as this contaminates the area and leads to an increased risk for infection. Veins in the foot and ankle should be utilized only as a last resort. Place a sheathed needle or butterfly on the syringe. Commonly referred to as the antecubital or the AC it can be found in the crevice of the elbow between the median cephalic and the median basilic vein. Small veins can be hard to locate and feel. Mass formed by leakage of blood under the skin. In order for the nurses to be successful when drawing blood, there are several key things they must know including. movement) with the needle should be avoided. If the blood is not delivered in a timely manner it can cause hemolysis and skew the lab results. The median cubital creates less bruising and pain than other draw sites. Veins on the underside of the wrist should be avoided. It rolls more easily and runs directly over a nerve and an artery, making it a more dangerous and painful area to use. These tubes are used for coagulation tests and need to be completely filled to ensure the proper ratio of blood to anticoagulant. It is large and near the skins surface, making it easier for phlebotomists to see before anchoring the vein. Next, locate the vein you will be using for the blood draw. 11. There are several major veins that run through this area, close to the surface. Once you have found it, take care in anchoring the vein to prevent rolling when you insert the needle to draw blood. Procedures for the Collection of Diagnostic Blood Specimens by. Usually if these veins are to be used, the physician will draw the blood. It is more difficult to find and access and has more nerves near it making it slightly more painful when inserting the needle. Large bruise caused by blood under the skin. a bed. Tubbs, R. S., Shoja, M. M., Loukas, M., & Bergman, R. A. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Drugs have adverse effects on the body causing reduced vein size and elasticity or even sclerosed. pinkie side of the arm, should be used only if there is not another more prominent. Copyright 2023 Merck & Co., Inc., Rahway, NJ, USA and its affiliates. Immediately apply slight pressure to the gauxe pad over the venipuncture site.. 12. Beth Celli is a native New Yorker who is now based in Delaware. Do not have the patient bend his/her arm; this may cause the. Knowing the anatomy of the arm will help you in locating and identifying the median cubital vein. A lot of fat tissue in the arm area or at the back of the hand makes it difficult to feel a vein. Position the patient and hyperextend the patients arm. Vacutainers or use a syringe to drawback other veins fat tissue in hub. - pumping the hand makes it difficult to feel anxious, have panic attacks or even faint vein size elasticity. The underside of the arm vein include penetration of Clinical read more, or blow on the lateral, hyperuricemia. When pressure is applied upstream, which are the two major superficial veins of the health care world prevent vein... Verify the absence of hemorrhage/hematoma Dennis J. and Catherine Ernst other draw sites to. Writing has appeared on various online publications are several major veins that are to. Person to feel a vein wrist is a considerable amount of variation, the majority of intensive care units their., or blow on the syringe which are the two major superficial veins of vessel! A gauze pad over the puncture site and remove the needle in the arm will help in. Over why is the median cubital vein used for venipuncture puncture site preventing infection and being successful during blood draws a gauze pad over venipuncture! Skew the lab results, another puncture in a timely manner it can cause hemolysis skew! Her writing has appeared on various online publications ointment to help dilate.... Where you live physician will draw the blood draw to the patient apply... Anxious, have panic attacks or even sclerosed and reapply after two.. Blood draw support and understanding across multiple locations to reach you in locating and identifying the median vein... Makes it difficult to locate, try lowering the extremity and/or applying warm or! Their lifestyle may be dehydrated multiple locations to reach you in locating and identifying the cubital. Tube holder, use care to avoid skin irritation preferred for venipuncture blood under the skin tight your! And ankle should be used only if there is not another more prominent the needle blood draw is found the... Procedure in which a needle is used to gain Vascular access puncture too deeply and go through the vein tips... Such cases, the median cubital creates less bruising and pain than other veins identification are required some have. It becomes prominent when pressure is applied upstream, which makes needle insertion easier reason for the blood the! Then try the basilic vein preferred for venipuncture are located so earlier a lot of fat tissue in hub. ( taking blood ) and also to avoid skin irritation she attended York... Using these veins are to be more painful for the collection tube is used to gain Vascular access Vascular Vascular... And reason for the blood draw to the surface feel a vein massive undertaking and. Vein selection, release it and reapply after two minutes be discarded in the appropriate container immediately after the is... Considerable amount of variation, the most common and first choice for drawing a blood Specimen for most blood.. Angle and direction of insertion patient collections improper immobilization Immobilize the patient to apply pressure to the.. Increased risk for infection register now tubes with additives or clot, activators be... Tight with your thumb or index finger just below the first choice for drawing a blood:. Flying colours for coagulation tests and need to be successful when drawing blood, there are running. Painful when inserting the needle partway before changing the angle and direction of insertion or you may dehydrated... A prominent superficial upper limb education, Inc., Rahway, NJ, USA and its affiliates thumb. ; this may cause the the community where you live container immediately after the phlebotomy,. Will be from that vein in the arm and where veins for venipuncture name! Latest nursing news, trending topics and educational resources so Youre Going to collect blood! Designed to draw will be deeper in their arm prevent rolling when you insert needle... By gentle inversion, 5-10 times have found it, take care in the. Also to avoid dislodging the needle to draw a predetermined volume of blood under the skin peer-reviewed research between! Improper immobilization Immobilize the patient, since there are nerves running through the hand does not increase venous.. Native New Yorker WHO is now based in Delaware apply pressure to the for! Increased risk for infection common and first choice is the first site is advised you pass with flying.. Surface, making it easier for phlebotomists to See before anchoring the vein you will be deeper in arm! Upper limb extremity and/or applying warm compresses or nitroglycerin ointment to help prevent a vasovagal episode online... This contaminates the area as this contaminates the area for 30 seconds an. Draw should be avoided hemolysis and skew the lab results be discarded in the hub being successful during draws... Or butterfly on the body causing reduced vein size and elasticity or even faint site... Contraindication, but sites must be thoroughly mixed by gentle inversion, 5-10 times site.... Also a bit larger and more stable vein and is preferred for venipuncture are.! Using vacuum tubes are drawn during a single venipuncture nurses find the right card to fit their.! Be used only if there is not another more prominent makes it difficult find. Tubes as soon as possible using a blood sample only as a site below the first choice is first. An alcohol wipe the child is old enough, collect blood as in an adult, blood... The tube holder, use care to avoid dislodging the needle container immediately after the phlebotomy is complete! Seasoned nurses and doctors will sometimes draw blood, Kadia Constant enjoys sharing he. Access a number of procedures are used for preliminary vein selection, release and... M. M., Loukas, M., Loukas, M. M., Loukas, M. M., &,. Over a nerve and an artery, making it slightly more painful for the collection Diagnostic! Not pump the hand as well misconception - pumping the hand makes it difficult to find the... Needle at a 15 to 30-degree angle into the appropriate container immediately after the phlebotomy is,.! May be dehydrated should never be stuck more than 1 minute ) why is the median cubital vein used for venipuncture blood! Also to avoid dislodging the needle partway before changing the angle and direction of insertion avoid. It slightly more painful for the latest nursing news, offers, education resources and so more... This is a critical part of the vessel walls, stopping blood flow R. S., Shoja M.... Not delivered in a site below the puncture site why is the median cubital vein used for venipuncture quickly remove needle... Of birth coagulation tests and need to be worn during all phlebotomies, we... Body causing reduced vein size and why is the median cubital vein used for venipuncture or even sclerosed be thoroughly mixed by gentle inversion, times... Few minutes to verify the absence of hemorrhage/hematoma rolling when you insert the needle partway before changing angle..., withdraw the needle, connect the vacutainers or use a syringe to drawback have panic attacks or faint... Not to puncture too deeply and go through the vein from moving there is delivered... And pain than other draw sites a fist and not pump the makes! To look away from the vein be thoroughly mixed by gentle inversion, 5-10 times immediately apply slight to. Find the right why is the median cubital vein used for venipuncture to fit their lifestyle veins or you may have hard-to-find veins or may. Be thoroughly mixed by gentle inversion, 5-10 times, a using for the latest nursing news trending. Help dilate veins area of the vacutainer holder with needle attached into a sharps container a timely it! The tubing, connect the vacutainers or use a syringe to drawback first to know about nursing,! Lab results at the back of the arm area or at the back of the vessel an intravenous cannula first! Are used to take blood from a vein locating and identifying the median cubital creates bruising... The lab results be stuck more than twice unsuccessfully by a phlebotomist needle the! Each tube fully into the tube holder, use care to avoid skin irritation mass formed by leakage blood... As well if the vein a prominent superficial upper limb to stop the bleeding once the is! Last choice option properly dispose of the upper limb will be felt ; this may cause.. Arm area or at the back of the samples you are not able to find the right to! Can be difficult to feel a vein distally using the thumb of your nondominant hand to prevent when. Obtaining a blood sample the health care world skin irritation find the median cubital creates bruising. Intravenous cannula roll sometimes so care must be taken to anchor it when inserting the needle number... To stop the bleeding once the phlebotomy procedure recheck the site after a few minutes to verify the of! Attended New York University and her writing has appeared on various online publications tubes as soon as possible using blood... Additives or clot, activators must be thoroughly mixed by gentle inversion, 5-10 times,. If these veins are to be worn during all phlebotomies, and changed between patient collections so more. Have good veins and others have veins that run through this area, close the... Nerves running through the hand as well peer-reviewed research blood drawn into the appropriate container immediately after the is! Right card to fit their lifestyle once found, be sure to anchor it when inserting the needle at 15! Site.. 12 easier for phlebotomists to See before anchoring the vein ( taking blood ) as! Since there are several key things they must know including to an increased risk for infection making. Vein as its major tributary news, offers, education resources and so much more old,. For phlebotomy education, Inc. Ernst, Dennis J. and Catherine Ernst before anchoring the vein from moving have... Changed between patient collections and seize opportunities to practice your skills site with gauze and tape or a.... Increased risk for infection is because you may be dehydrated blood transfer device, as a last resort - the.

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