A full IV bag contains 1 liter 1000 cm3 of saline solution

A full IV bag contains 1 liter (1000 cm3) of saline solution (? = 10-3 Pa s). You\'d like to deliver 1 bag to a patient over 2.5 hours. Assume you hang the bag high enough to create a pressure difference of 15,000 Pa across the needle.

Use the chart above to determine the best needle to use.

Volume flow rate is

Q = Pr^4/(8L)

Hence, the value of r^4/L is

(0.001/9000) = 3.14 * 15,000 * r4/(8 * 10^-3 *L)

r^4/L = 1.887 * 10^-14

From the above data we can say that the best needle to use is 24 gauge

$A full IV bag contains 1 liter (1000 cm3) of saline solution (? = 10-3 Pa s). You\'d like to deliver 1 bag to a patient over 2.5 hours. Assume you hang the bag$

A full IV bag contains 1 liter 1000 cm3 of saline solution

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