Is this a good idea?

I am only taking one ap this year. However i know other subjects very well and i was wondering if it is a good idea to take the test to show colleges that i know the content despite not taking the class?

They won’t care. They want you to take the most challenging courseload within your HS’s parameters. While there are valid reasons to take AP exams, including potentially racking up college credit, showing something to colleges is not one of them.

I mean im going into the med field so the college credit wont really do anything to me. I just thought maybe it shows that i know my stuff

They’d rather see that you know your stuff via GPA and SAT/ACT.