Final answer:
The client is receiving 1,000 units of heparin each hour.
Step-by-step explanation:
The IV solution labeled Heparin Sodium 20,000 Units in 5% dextrose injection 500 ml is being administered at a rate of 25 ml/hour. To calculate how many units of heparin the client is receiving each hour, we can set up a proportion:
20,000 units / 500 ml = x units / 25 ml
Cross-multiplying, we get: 500x = 20,000 * 25
Simplifying, x = (20,000 * 25) / 500
So the client is receiving 1,000 units of heparin each hour.