Final answer:
The maximum allowable volume discrepancy for controlled drugs is not provided, but the scenario illustrates the importance of accuracy and precision in pharmaceutical dispensing. Correct calibration and measurement are essential for patient safety and compliance.
Step-by-step explanation:
The maximum allowable volume discrepancy for liquid controlled drugs is not explicitly stated in the provided information. In the given scenario, a quality control chemist is evaluating the performance of three different cough syrup dispensers by checking their accuracy and precision in dispensing 10-ounce (296 mL) volumes. Dispenser #1 is reported as precise but not accurate, with each dispensed volume more than 10 mL too low. Dispenser #2 is seen to have improved accuracy with less than a 3 mL discrepancy from the target volume but lacks precision. Dispenser #3, however, dispenses both accurately (all volumes within 0.1 mL of the target) and precisely (volumes differing by no more than 0.2 mL). Correct measurements and calibration are critical when dispensing medication, as accuracy and precision help ensure patient safety and maintain regulatory compliance.
For the unrelated mathematical problem where a pharmacist mixes different volumes of ingredients, the total volume in liters after combining 1,550 milliliters of syrup, 725 milliliters of cherry flavor, and 1.25 liters of water would be the sum of these amounts converted to liters.