The agency typically arranges a meeting between one of its escorts and the client at the customer's house or hotel room (outcall), or at the escort's residence (incall).
The urinary sodium concentration helps in diagnosing patients with low plasma osmolality. High urinary sodium concentration in the presence of low plasma osmolality can be caused by renal disorders, endocrine deficiencies, reset osmostat syndrome, SIADH, and medications.
HG, Not sure I really answered your question but you at least stimulated my brain to think, so that is always a good thing. LOL He may have ordered a urine for osmolality is my guess. Any how, good luck with everything and I will be curious to find out what he thinks is the cause of your low sodium levels.