Final answer:
The patient's confusion and thirst may be related to their low blood pressure, causing decreased blood flow and oxygen to the brain and body.
Step-by-step explanation:
In this case, the patient's blood pressure is 70/45, which indicates hypotension (low blood pressure). Confusion and thirst can be symptoms of hypotension, as the brain and body may not be receiving enough blood flow and oxygen. This can result in alterations in mental status and increased fluid loss, leading to dehydration and thirst.