Final answer:
Prefilled syringes are typically designed for single use to ensure sterility and prevent the risk of contamination. The quality control chemist's task of evaluating dispensing machines for accuracy and precision is a separate context from the use of syringes and pertains to ensuring the correct dosage in pharmaceutical manufacturing.
Step-by-step explanation:
The question is centered around whether a prefilled syringe can be used for multiple dosages. In most medical practices, prefilled syringes are designed for single use to ensure sterility and dosage accuracy. Upon administration, it should be disposed of properly.
However, the student's question might be misinterpreted, as the context provided speaks about a quality control chemist evaluating the accuracy and precision of machines dispensing cough syrup. These machines are presumably filling syringes or bottles. If we're discussing the machines, the concept of using a dispenser for multiple dosages is valid, as these machines are designed for repeated use with precise and accurate measurements.
The inquiry about prefilled syringes typically pertains to medical practices, where it's essential to adhere to guidelines that prevent contamination and ensure patient safety. Syringes used to deliver medications might be single-use or multi-dose, depending on the design and purpose. Using a prefilled syringe for multiple doses is not recommended unless the syringe is explicitly designed for such purposes, and the practice is supported by clinical guidelines.
In the context of the quality control scenario provided, the chemist is focused on evaluating three dispensing machines, not syringes. The chemist tests each machine's ability to dispense a target volume of cough syrup, and she is specifically tasked with assessing accuracy (how close the dispensed volumes are to the target value of 296 mL) and precision (how small the variations are between multiple dispensed volumes).