Found a Place to do Blood Work

Have some questions:

Here is my story:
I found a place that will do bloodwork with out a script.

T was sub 200 ng/Dl in the last two blood test pre-TRT.

I have been on one tube of Testim for about a week. At the two week point I want to check my Total T, free T, and E2.

I apply the gel in the morning. Any guidelines about when I should get the test? I have also heard you should avoid applying to the arm you are going to get the blood drawn from.

Get the test in the morning and apply after the test.