Answer :
The doctor orders 40 meq of IV potassium chloride, but the available amount is 5 meq/hr, with the supply of 40 meq per 100 ml. The nurse will give 0.8 ml of potassium chloride per hour.
Solution: We need to use the formula of intravenous infusion to solve the problem.
IV infusion (ml/hr) = Total volume of IV fluid (ml) × Drip rate (gtts/min) / Time of infusion (min)1000 ml = 1 liter.
We need to use this to convert ml into liters as well.
Therefore,IV infusion (in liters/hr) = Total volume of IV fluid (in liters) × Drip rate (gtts/min) / 60 (min)
First, we need to find out the drip rate. Drip rate = Ordered dose / Hourly volume
Drip rate = 40 meq / 5 meq/hr
Drip rate = 8 gtts/min
Then, we need to find out the total volume of IV fluid.
Total volume of IV fluid = Ordered dose / Available dose
Total volume of IV fluid = 40 meq / 40 meq / 100 ml
Total volume of IV fluid = 100 ml.
Then, we need to find out the IV infusion in liters per hour.
IV infusion (in liters/hr) = Total volume of IV fluid (in liters) × Drip rate (gtts/min) / 60 (min)IV infusion
= 100 ml / 1000 ml × 8 gtts/min / 60 (min)IV infusion
= 0.8 ml/min.
Therefore, the nurse will give 0.8 ml of potassium chloride per hour.
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