Which phrase indicates a specific point in time when discussing patient follow-ups?

The phrase that indicates a specific point in time when discussing patient follow-ups is "On 19/08/10." This phrase clearly states an exact date, allowing for precise scheduling and context in communication about the patient's care. Using specific dates is crucial in clinical documentation and communication as it helps healthcare professionals to track follow-up appointments, test results, and treatment plans accurately.

The other phrases relate to timeframes or conditions rather than pinpointing an exact date. "Over the past 2 weeks" suggests a span of time without indicating a specific date. "Based on the test results" refers to a condition dependent on prior information without providing any temporal indicator. "Finally" does not convey a specific date or timeframe, but rather suggests a conclusion or culmination of information. Therefore, the phrase specifying a date is most effective for clear communication regarding follow-ups.