[a]https%3A%2F%2Fen.gongdong.com%2Fproducts%2Fblood-collection-needle%2F[/a] <br>#needle #for #blood #sample <br>Blood Collection Needle <br>Needle used for blood collection. All needles are supplied in 4000 pcs/ctn. Blood sample collection needles avoid the potential multiple sticks of the same patient with instant confirmation of needle placement, through a unique visual flashback indication. <br> <br>Description of Safety Blood Collection Needle <br>01 <br>Easily identified by different color. <br>02 <br>Thin-walled design, big inner dia., so the flow rate is high. <br>03 <br>Pyrogen free. <br>04 <br>Non-toxic. <br>Specification of Needle Blood Collection <br>Click on the item code below to view product images. <br> <br>Cat. No Size Color <br>GDN18G 18GX1 1/2&#039;&#039; Pink <br>GDN20G 20GX1 1/2&#039;&#039; Yellow <br>GDN21G 21GX1 1/2&#039;&#039; Green <br>GDN21G2 21GX1 1/4&#039;&#039; Green <br>GDN22G 22GX1 1/2&#039;&#039; Black <br>GDN22G 22GX1 1/4&#039;&#039; Black <br>GDN23G 23GX1 1/2&#039;&#039; Blue <br>GDN21GFB Flash Back Needle 21Gx1” Green <br>GDN22GFB Flash Back Needle 22Gx1” Black <br>GD-BF21G Butterfly Needle 21Gx3/4&#039;&#039; Green <br>GD-BF22G Butterfly Needle 22Gx3/4&#039;&#039; Black <br>GD-BF23G Butterfly Needle 23Gx3/4&#039;&#039; Blue <br> <br>What Color Needle is Used for Blood? <br>Three of the most frequent needle sizes are 21, 22, and 23 gauge. <br> <br>The 21g needle, which is commonly color-coded with a green code covering, allows blood to flow at a steady rate, reducing collection time. <br> <br>The 22g needle may help the phlebotomist with slightly narrower veins on older children or adult patients. This needle, which has a black color code covering, can be assembled with the more typical multi-sample needle ETS system. <br> <br>The 23g needles are used when a person’s vein is much narrower than average. It is light blue color coded. <br> <br>What Size Needle is Used for Blood Draws? <br>Unlike standard measurement systems, gauge numbers and needle size have an inverse relationship. The needle width narrows as the gauge number increases. The most widely used needles in the medical industry range from number 7, the largest, to number 33, the smallest. The most widely used needles for venipuncture are 21-gauge needles, while 16-gauge needles are commonly used for blood donation because they are thick enough to allow red blood cells to pass through the needle without being broken. <br> <br>Now the price of needle for blood extraction is reasonable, if you have needs, please contact us. <br> <br>As a medical laboratory consumables supplier, we can provide kinds of medical consumables for sale, if you are interested, please leave us a message.

#vacutainer <br>[a]https%3A%2F%2Fen.gongdong.com%2Fproducts%2Fesr-tube%2F[/a] <br>Black ESR Tube <br>Determination of the Erythrocyte Sedimentation Rate for fully automated analyzers. ESR is a clinical lab test that measures the rate at which red blood cells in whole blood descend into a standardized tube, reported as mm per hour, to measure inflammation as inflamed red blood cells settle quickly relative to normal blood cells. A high ESR could be indicative of elevated inflammation. ESR blood test vacutainer is one kind of whole blood tube for ESR. <br> <br>Description of ESR Blood Collection Tube <br>01 <br>Sodium citrate is used as anticoagulant to prevent blood from clotting. Filled with a buffered sodium citrate solution in a concentration of 0.129mol/L (3.8%). <br> <br>02 <br>The blood to additive ratio is 4:1. <br> <br>03 <br>After ESR sample collection tube has been filled with blood, immediately invert the tube 8-10 times to mix and ensure adequate anticoagulation of the specimen. <br> <br>04 <br>Aluminum composite bags available to provide optimum protection against additive evaporation, UV light, dirt and mechanical influences. <br> <br>05 <br>All the necessary custom service options to fulfill your project requirements. <br> <br>What is an Erythrocyte Sedimentation Rate (ESR)? <br>A blood test called an erythrocyte sedimentation rate (ESR) gauges how rapidly red blood cells, or erythrocytes, settle to the bottom of a test tube containing a blood sample. Red blood cells often settle fairly slowly. A higher-than-average rate could be a sign of internal inflammation. Inflammation is a normal aspect of your immune system&#039;s response. It could be a response to an injury or infection. <br> <br>What is the Method of ESR Test? <br>ESR can be measured using a variety of methods, including the Westergren, Wintrobe, and micro-ESR methods, as well as automated devices. The Westergren method is the most often used ESR method. <br> <br>The Westergren method has traditionally been used to calculate ESR by measuring the distance that RBCs settle to the bottom of a 2.5 cm internal bore elongated tube. <br> <br>The Wintrobe method employs 100-mm-long tubes with a smaller bore (thinner tube) than typical Westergren tubes. It is thought to be less sensitive than the Westergren. <br> <br>The micro ESR is a method of obtaining the ESR that uses capillary tubes and allows for faster testing periods. <br> <br>If you want to know more kinds of black top blood vial, please visit our website. <br> <br>Now the price of medical consumables is reasonable, if you want to buy medical consumable products, please leave us a message.