Final answer:
To handle an increased load of chemistry tests, the new clinic should justify the acquisition of a high throughput instrument to enhance analytical efficiency and meet the demands of ADME/pharmacokinetic studies.
Step-by-step explanation:
The appropriate justification category for acquiring a high throughput instrument for a new clinic that has a significant increase in chemistry tests would be the need to improve analytical efficiency in a regulated environment. Advancements such as a-chip technology and the use of innovative bioanalytical approaches underline the necessity for equipment that can handle an increased volume of tests with accuracy and speed. These instruments are designed to support the growing number of samples from ADME/pharmacokinetic studies and to deliver quality results that align with the dynamic pace of drug discovery and development protocols.