Vaginal Discharge with Sore Throat and No Insurance

It's always a dilemma when we see patients with no health insurance who are paying out of pocket for everything: you want to provide high quality medical care, but you don't want the patient to end up shelling out $800 just for one visit with a few lab tests that may or may not yield a diagnosis.  So for the 23-yr-old female with thick yellow vaginal discharge and a sore throat, I had to ask...
Me: Are you sexually active?
Patient: No
Me: Have you ever had intercourse?
Patient: Yes
Me: When was the last time?
Patient: Wednesday
Me: Have you & your partner been having oral sex?
Patient: No
Me: At any time, was there a penis in your mouth?
Patient: Yes
Me: When?
Patient: Wednesday

For the vaginal discharge, I ended up doing a wet mount and a cervical swab for GC/CT.  I had to make a decision about the sore throat: if it was due to a sexually-transmitted infection, I would have to perform separate throat swabs for chlamydia and gonorrhea, and the patient was concerned about paying for multiple tests with her limited funds.  If it was due to respiratory infection,  I could just order a rapid strep test.  Luckily, the patient did have a low grade temperature of 100.2 with swollen tonsils, so we got a strep test and...it was POSITIVE.