But the only 2 intrinsic catheter properties that effect flow are their length and diameter!
4/x
But the longer the catheter, the higher the resistance, and therefore the slower the flow.
This is why the 14G port on the quad-lumen central line is slower than the much smaller diameter 18G peripheral IV!
5/x
Catheter pictorial/chart courtesy:
@edexam, @ETMCourse
#FOAMed
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