[sjy]

The ACLU's advice on this question is:

> Once you say that you want to talk to a lawyer, officers should stop asking you questions. If they continue to ask questions, you still have the right to remain silent. If you do not have a lawyer, you may still tell the officer you want to speak to one before answering questions. If you do have a lawyer, keep his or her business card with you.

https://www.aclu.org/know-your-rights/what-do-when-encounter...

In many countries the police would provide you with contact information for publicly-funded duty lawyers who can help in this emergency (assuming you are under arrest, and not just free to walk away). Sounds like in the US, it would be wise to do a bit of research and check if there are any emergency services like that in your area.