



LEVRAM Sodium Citrate 3.2% vacuum tubes are used for blood collection to perform coagulation studies. These tubes contain a buffered sodium citrate solution (3.2%) that acts as an anticoagulant by binding with calcium ions in the blood, preventing clotting. The 3.2% concentration is a standard for many coagulation tests, and the tubes are designed to draw a specific volume of blood, ensuring the correct ratio of blood to anticoagulant.