Final answer:
The percentage of error in administering heparin is found to be 2.67% when a patient receives 7700 units instead of the prescribed 7500 units.
Step-by-step explanation:
The percentage of error in medication administration is calculated by taking the absolute value of the difference between the supposed dose and the actual dose, dividing it by the supposed dose, and then multiplying by 100 to get the percentage. In this case, the supposed dose is 7500 units and the actual dose is 7700 units.
To calculate the percentage of error:
Error = |Actual - Supposed| / Supposed × 100
Error = |7700 - 7500| / 7500 × 100
Error = |200| / 7500 × 100
Error = 200 / 7500 × 100
Error = 2.67%
Therefore, the patient receiving 7700 units of heparin instead of the prescribed 7500 units results in a 2.67% error.