IndexIntroductionDiscussionConclusionReferenceIntroductionBleeding is a method of making a cut in a vein. Bloodletting is also called venipuncture. Venipuncture is also the method of intravenous access for the purpose of collecting venous blood samples. Extracting blood from the vein is a very difficult task. It requires a lot of care. A person who draws blood from the patient's vein is called a phlebotomist. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay Discussion Why is blood collection important? There are many reasons for collecting blood:1. Taking a blood sample is essential for the purpose of diagnosing, examining and improving the disease and disorder.2. Sometimes blood samples are also taken to check hemoglobin levels.3. Blood sampling is also very important to check values ​​and to examine the morphology of blood components including red blood cells (RBCs), white blood cells (WBCs) and platelets.4. Blood sampling is done before donating blood to anyone. To verify that the donor's blood is compatible with the patient's blood and to verify that the donor does not have diseases and that the blood is not dangerous for the patient. .5. Blood sampling is also important to examine and check the amount of different biochemical parameters in the body such as blood sugar level, uric acid, blood gases and cholesterol level.6. Blood sampling is also very important in every test like CBC, LFT and RFT etc. Blood sampling sites Venous blood sampling: The best locations for venipuncture are usually the superficial veins found in the upper extremities. Because here the veins are larger. In case the veins of the upper extremities are not palpable or are not available, other positions can be used for blood sampling. The median cubital vein is preferable as it is located between the muscles and is easier to puncture. Another advantage of choosing the midvein is that it does not roll or move under the skin. Simply put, it is totally safe to puncture. The Basili vein runs through an artery and a nerve. So puncturing here the risk of damaging the nerves and arteries is greater. Therefore piercing the basilica vein is more painful. The cephalic vein interacts with the basilica vein through the median cubital vein at the elbow site. Blood moves from smaller veins and drains into the cephalic vein. It is used for obese patients. Artery blood sample: The artery is the least common location for blood sampling. The most common cause for blood drawn from the artery is arterial blood gas analysis. The common puncture location is the radial artery in the wrist and the femoral artery in the groin. Blood from the artery can also be drawn from the arterial catheter. Capillary blood sample: Capillary blood sample is necessary when only a small amount of blood is needed, such as in blood glucose testing with the glucometer method. The most common capillary blood sample is performed with the finger, but in newborns it is also performed on the heels. Blood sampling from the finger: The best site for fingertips is the center of the fingertips of the 3rd middle and 4th ring fingers of the non-dominant hand. The fingertip should not be used. The side of the finger where there is less soft tissue should also be avoided. Blood sampling from the heel: the recommended area for blood sampling in the newborn is the heel. Heel stick is a blood collection process for infant blood testing. Blood Bags Carl Walter is remembered for inventing blood collection bags which are still used throughout the world./