what sites should be avoided when performing venipuncture quizlet

\u00a9 2023 wikiHow, Inc. All rights reserved. A government issued photo identification card such as a driver's license can aid in resolving identification issues. Warning: Some phlebotomists use a method of anchoring called the "C-hold", in which the index finger pulls upwards superiorly while the thumb pulls downwards inferiorly. Contaminated surfaces must be cleaned with freshly prepared 10% bleach solution. Give an example of each. Refuse treatment to the extent permitted by law. Ernst, Dennis J. Mix and label all appropriate tubes at the patient bedside. Contains a gel separator and clot activator. 1. 6. B. Hematoma Drawing the patient in a reclined position. 1. The service requires full cookie support in order to view this website. Free Flashcards about Phlebotomy Chapter 9 - StudyStack What are the gold top containers used for? Patient identification is critical for safety. Label collection tubes after identification of the patient. Summarize the problems that may be encountered in accessing a vein, including the procedure to follow when a specimen is not obtained. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Most reference ranges are based on normal laboratory test values for: Healthy people in a basal state. The blood is normally drawn from a vein on the top of the hand or from the inside of the elbow. 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. Allow another large drop of blood to form. If it is then heated, what can you say about: b) how often the molecules hit the walls of the can. While venipuncture is considered to be reasonably safe, the present study investigated the incidence of serious complications occurring in an outpatient setting. Identification errors in pathology and laboratory medicine. When would you use a butterfly/infustion set? Dispose of contaminated materials/supplies in designated containers. puncture site downward and gently applying intermittent pressure to the surrounding tissue (or proximal to the puncture site when the blood is obtained from a finger). 2017;50(10-11):568-573. Please enable cookies on your browser and try again. Place blood collection equipment away from patients, especially children and psychiatric patients. Although the skill set and procedures may apply to both instances, this content is primarily aimed towards venous blood collection using evacuated tube systems (e.g. Most commonly, venipuncture will be performed on the Antecubital Fossa, or the inside of the elbow. 6. Adjust the height and swivel the chair to ensure your body is in line with the vein. Reasonable informed participation in decisions involving the patient's health care. The antecubital fossa is a collection of veins located within the arm's inner area, opposite of the elbow, where the arm folds in. 9. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Apply the tourniquet approximately 4-5 finger-widths above the planned venepuncture site. Phlebotomy Exam Questions - TAU Previous puncture sites should be avoided. Assess the need for sample recollection and/or rejection. Hemolysis may occur, with pseudohyperkalemia. Hematoma - A venipuncture should not be performed on a hematoma, regardless of how small it may be. Using the requisition for reference, ask a patient to provide additional information such as a birthdate. The first step to choosing the right vein is to select the appropriate needle gauge. Perform the venipuncture, collecting the sample(s) in the appropriate container(s). 2006;52(5-6):217-30. What can happen if you vigorously shake the tubes? They are also. The rubber stoppers are color coded according to the additive that the tube contains. This requisition form must contain the proper information in order to process the specimen. A. Syringe NHA Exam Questions Flashcards | Chegg.com This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. When using a syringe inserted into the line, blood must be withdrawn slowly to avoid hemolysis. Get instant access to our latest tools and our must-read site updates: What Certifications Are Used For Higher Pay For Phlebotomists? Inadvertently nicking a nerve causes intense pain. 4. Additionally, blood samples should not be taken on an arm with a fistula used for dialysis treatments. Sanders AM, Agger WA, Gray AM, Fischer CM, Kamprud EA. Be sure to dispose of the lancet in the appropriate sharps container. Venipuncture (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. Blood clots, and the serum is separated by centrifugation, Chemistries, Immunology and Serology, Blood Bank (Crossmatch), Serum separator tube (SST) contains a gel at the bottom to separate blood from serum on centrifugation, Plasma Separating Tube (PST) with Lithium heparin, Anticoagulates with lithium heparin; Plasma is separated with PST gel at the bottom of the tube, Hematology (CBC) and Blood Bank (Crossmatch); requires. Do not add blood to a circle already filled orpartially filled with blood. Procedure for Capillary Puncture of the Finger: The best site for a finger puncture is just off the center of the finger pad of, the 3rd (middle) or 4th (ring) finger of the hand. Edematous extremities with swollen tissue alter the results. Firmly grasp the flanges of the tube holder to avoid advancing the needle further into the vein as you change tubes. wikiHow is where trusted research and expert knowledge come together. As a countermeasure, phlebotomists anchor the vein with their hand to stabilize it for the draw. Other Factors: Age, gender, and pregnancy have an influence on laboratory testing. Venipuncture requires good skills in order to perform the procedure not only correctly, but also painlessly. Never leave a tourniquet on for more than two minutes. This information must match therequisition. C. Iodine Impact of Use of Smaller Volume, Smaller Vacuum Blood Collection Tubes on Hemolysis in Emergency Department Blood Samples. Diagn Microbiol Infect Dis. Use a smaller tube with less vacuum. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Effects of Exercise: Muscular activity has both transient and longer lasting effects. Observe universal (standard) safety precautions. PDF Venipuncture - Central Zone - Alberta Health Services Avoid prolonged tourniquet application or fist clenching. (b) How would you prepare tetracaine from p-nitrobenzoic acid? This guide follows the steps as outlined in the World Health Organizations Guidelines on Drawing Blood: Best Practices in Phlebotomy. LTD: Performing a Capillary Puncture Version 7, General Guidelines for a Capillary Puncture: Capillary punctures are ideal for, small children when only a small volume of blood is needed. Hematoma formation is a problem in older patients. Label all specimens per accepted guidelines. 4. This seats the bevel into the lumen of the vein, and is also the technique used to insert an IV catheter. Be careful not to withdraw the needle completely or else you risk losing the tube's vacuum and starting a hematoma when the bevel exits the skin. 1. Allow to air dry. Date, time and initials of the phlebotomist must be on the label of EACH tube. Hard and dense structures may be nerves or tendons. Lightly touch the microtainer capillary collectiondevice (or filter paper) to the LARGE drop of blood. 5. 6. He previously worked in a high-volume outpatient lab and is currently employed in an acute care hospital and Level III trauma center in downtown Vancouver. Avoid UE on same side of mastectomy (lymphedema) Dispose of items in appropriate containers. Position the patient so that the hand is easily accessible. Dispose of contaminated materials in appropriate waste receptacles. These items include: B. the needle is only partially in the vein Do not use the tip of the finger or the center of the finger. Areas of the body that look infected, scarred, or burned must also be avoided. Hematoma - may cause erroneous test results. Journal of Exotic Pet Medicine. -infection at site Clean the site to be punctured with an alcohol sponge. If superficial veins are not readily apparent, you can force blood into the vein by massaging the arm from wrist to elbow, tap the site with index and second finger, apply a warm, damp washcloth to the site for 5 minutes, or lower the extremity over the bedside to allow the veins to fill. A requisition form must accompany each sample submitted to the laboratory. Follow the procedure as outlined above for greeting and identifying the patient. The upper extremity on the side of a previous mastectomy - test results may be affected because of lymphedema. Procedures and Devices for the Collection of Diagnostic Capillary Blood. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Source of specimen. As a phlebotomist, it is critical to know which vein sites offer stable flows for blood draws. Alcohol not dry in the required amount of time B. Veins less prominent and less filling C. Veins more prominent and easier to puncture D. Blood stop flowing to arteries but not veins A The most common site (s) for the venipuncture procedure is/are the following: Since newborns do not often bleed immediately, use gentle pressure to produce a rounded drop of blood. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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