what sites should be avoided when performing venipuncture quizlet

Lightly touch the microtainer capillary collectiondevice (or filter paper) to the LARGE drop of blood. This seats the bevel into the lumen of the vein, and is also the technique used to insert an IV catheter. Wipe away the first drop of blood, which tends to contain excess tissue fluid. site. If using a needle and syringe, avoid drawing the plunger back too forcefully. Procedure for Capillary Puncture of the Heel: A heel puncture is performed on the lateral or medial plantar surface of the, foot. Consider three elements with the following abbreviated electron configurations: X=[Ar]4s23d5Y=[Ar]4s23d104p1Z=[Ar]4s23d104p6\mathrm{X} = \mathrm{[Ar]4s^23d^5}~~~\mathrm{Y}=\mathrm{[Ar]4s^23d^{10}4p^1}~~~\mathrm{Z}=\mathrm{[Ar]4s^23d^{10}4p^6} Firmly grasp the flanges of the tube holder to avoid advancing the needle further into the vein as you change tubes. How far above a venipuncture sight should you place a tourniquet? Track marks are not only found on IV drug users, but also on chronically ill patients requiring repeated vascular access and blood draws and may be a sign of an anticipated difficult draw. An artery has been punctured (characterized by bright red, pulsating blood), A nerve has been nicked (patient may complain of an electrical sensation up and down the limb), A hematoma starts to form (a bubble under the skin starts to rapidly appear at the site), The patient loses consciousness or starts seizing. UF Health Pathology Laboratories Nontuberculosis Mycobacteria Laboratory, This page uses Google Analytics (Google Privacy Policy), Capillary puncture may be used for obtaining specimens in infants or in adults where. Cap, rotate and invert the microtainer to mix the blood collected. The line must be flushed first. Coagulation tests (protime and prothrombin time), Tube is designed to contain no contaminating metals, Trace element testing (zinc, copper, lead, mercury) and toxicology, Antiglycolytic agent preserves glucose up to 5 days, HLA tissue typing, paternity testing, DNA studies, Inactivates thrombin and thromboplastin; contains virtually no lead. Over 52 percent of all web traffic is from mobile devices . Potential source of test error, particularly from hemolysis, Most lines are flushed with a solution of heparin to reduce the risk of thrombosis, Discard a sample at least three times the volume of the line before a specimen is obtained for analysis. Always wear a clean lab coat or gown. Consult the nursing unit or your facility's resources prior to drawing from an IV or PICC line or performing venipuncture on an arm with an IV line in place. Certain areas are to be avoided when choosing a site: Extensive scars from burns and surgery - it is difficult to puncture the scar tissue and obtain a specimen. (2017). The patient should either sit in a chair, lie down or sit up in bed. B. Betadine 7. Hard and dense structures may be nerves or tendons. The sides and the tip of the. Matt Garcia is an experienced phlebotomist in Vancouver, Canada. The fluid may dilute the specimen, so collect from the opposite arm. Perform the venipuncture. 7. Using a sterile lancet, make a skin puncture just off the center of the finger pad. It is an employer's responsibility to provide, clean, repair, replace, and/or dispose of personal protective equipment/clothing. Additionally, blood samples should not be taken on an arm with a fistula used for dialysis treatments. The area where the blood is to be drawn from is first cleaned with a germ-killing solution. Use pillows or foam wedges to elevate the arm and help with extension. wikiHow is where trusted research and expert knowledge come together. Any microtainerscontaining additives should be tapped to dislodge additives from the walls and top. Dispose of contaminated materials/supplies in designated containers. 10. Journal of Exotic Pet Medicine. Avoid bruising the infants heel when obtainingblood. Areas in which two veins join should be avoided where possible, as valves are often present. Intravenous therapy (IV) / blood transfusions - fluid may dilute the specimen, so collect from the opposite arm if possible. -antiseptic swabs Make the cut across the heelprint lines so that a drop of blood can well up and not run down along the lines. Procedures and Devices for the Collection of Diagnostic Capillary Blood. Do not attempt a capillary puncture more than twice. Which element has the highest ionization energy? Never draw from a thrombosed or scarred vein. Various sizes are available. This preliminary action allows you to safely adjust the needle's position. 2006;52(5-6):217-30. The puncture should be made perpendicular to the ridges of the fingerprint so that the drop of blood does not run down the ridges. C. After all specimens have been collected Diurnal variations associated with some blood components are: Remove the first glove so that it turns inside out during removal A phlebotomy technician is preparing to dispose of contaminated sharps. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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