Question

calculate the 24 - hour maintenance fluid for a child who weighs 12 kg.
the provider wants this child to receive half of the daily maintenance fluid volume by iv.
calculate the ml/hr flow rate.
ml/hr (round answer to the whole number)

Explanation:

Step1: Calculate 24 - hour maintenance fluid

For the first \(10\) kg of body weight, the fluid requirement is \(100\) mL/kg. For the remaining \(12 - 10=2\) kg, the fluid requirement is \(50\) mL/kg.
The 24 - hour maintenance fluid \(V = 10\times100+(12 - 10)\times50\)

$$
LATEXBLOCK0
$$

Step2: Calculate the fluid to be given by IV

The child is to receive half of the daily maintenance fluid by IV. So the volume of fluid by IV, \(V_{IV}=\frac{1100}{2}=550\text{ mL}\)

Step3: Calculate the mL/hr flow rate

The time is \(24\) hours. The flow rate \(r=\frac{V_{IV}}{24}\)

$$ r=\frac{550}{24}\approx23\text{ mL/hr} $$

Answer:

\(23\)