Next: you wanna use the brown port for your CVP transducer, on account of it's the largest lumen, also it's looking straight down into the RA. The blue one is medial, the white one is proximal - closest to the site of insertion. So the port that opens up at the tippy end of the line - which is the brown-ended one on an Arrow multilumen - that's the distal port. The ports are described in relation to the insertion site - where the line enters the patient. Like, normally, the fingers are distal to the elbow, right? Further away from the center of the body? Hope this helps! But, most likely, you will never forget which port is used for what after getting questioned in clinicals!įirst concept is that with regards to the position of the ports, the normal idea of distal and proximal is reversed. Also used for blood draws and monitoring central venous pressure (CVP). Medications, IV solutions, lipids, and colloids. Medications, IV solutions, more viscous fluids like TPN and lipids, colloids, and blood products if distal lumen is not open. Medications, IV solutions, and blood products if other lumens are not open. This may vary by manufacturer, but typically each lumen of the catheter is a different color, its own separate line, and used for designated purposes. When I worked in the ICU, patients were often receiving multiple medications and fluids at once, so a triple lumen central catheter, and knowing the function of each port, was essential. It's important for nurses to understand the lumen configuration and designation when caring for a patient with a triple lumen.
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