Cyclosporine (CSA) Level in Blood Samples Collected From Different Lines

"Blood samples were collected from the peripheral venous access, from the catheter line used to infuse the drug and from the line not used for infusion immediately after interrupting the drug infusion.~For peripheral blood collection, venous access will be established with a small gauge needle.~The discard method will be adopted for catheter lines collection. Each catheter line is washed with 20 ml of 0.9% normal saline solution, 5 mL of blood are collected and discarded. Using another syringe, the blood volume needed to perform the analysis will then be collected. Additionally, another blood sample will be collected from the catheter line not used to infuse the drug after the discard of 10 mL."

"Blood samples were collected from the peripheral venous access, from the catheter line used to infuse the drug and from the line not used for infusion five minutes after interrupting the drug infusion.~For peripheral blood collection, venous access will be established with a small gauge needle.~The discard method will be adopted for catheter lines collection. Each catheter line is washed with 20 ml of 0.9% normal saline solution, 5 mL of blood are collected and discarded. Using another syringe, the blood volume needed to perform the analysis will then be collected. Additionally, another blood sample will be collected from the catheter line not used to infuse the drug after the discard of 10 mL."