Which gauge is indicated for a blood flow rate of 300-350 mL/min?

The 16 gauge needle is appropriate for achieving a blood flow rate of 300-350 mL/min during procedures such as hemodialysis. A 16 gauge needle strikes a balance between ensuring adequate blood flow and minimizing discomfort for the patient.

Using a needle of this size provides a sufficient internal diameter to facilitate quick blood withdrawal or infusion, essential in dialysis settings where efficiency is critical for treatment effectiveness. Larger gauge needles, such as 14 gauge, while they can handle higher flow rates, may cause more discomfort and might not be necessary for the specified flow range.

In comparison, needles like the 17 gauge or 15 gauge may not provide the necessary flow rate, potentially leading to longer treatment times and inefficient dialysis. Therefore, the 16 gauge is the optimal choice for achieving the desired blood flow rate comfortably and effectively.