How do you draw gentamycin trough off picc line?

To draw a gentamicin trough from a PICC line, first ensure you have the appropriate supplies, including gloves, a syringe, and alcohol swabs. Clean the PICC line hub with an alcohol swab to reduce infection risk, then attach the syringe and withdraw a sample of blood, typically about 5-10 mL. Ensure the timing is correct, drawing the trough level just before the next scheduled dose. After drawing the sample, you can flush the line with saline to maintain patency.