Question

a patient is receiving 1 liter of iv fluids every 8 hours. at that rate, how much will he receive in 3 hours?

Explanation:

Step1: Find the rate of fluid - intake per hour

The patient receives 1 liter in 8 hours. The rate of fluid - intake per hour is calculated by dividing the total volume of fluid by the total time. The rate $r$ is $r=\frac{1}{8}$ liters per hour.
$r = \frac{1}{8}$ liters/hour

Step2: Calculate the volume of fluid in 3 hours

To find out how much fluid the patient will receive in 3 hours, we multiply the rate per hour by the number of hours. Let $V$ be the volume of fluid in 3 hours. Then $V=r\times3$. Substitute $r = \frac{1}{8}$ into the formula: $V=\frac{1}{8}\times3=\frac{3}{8}$ liters.
$V=\frac{3}{8}$ liters

Answer:

$\frac{3}{8}$ liters