Blood Test For Infection Will A Doctor Notice STDs Through Blood/urine Test When Checking For Bladder Infection?

Will a doctor notice STDs through blood/urine test when checking for bladder infection? - blood test for infection

My friend is having a blood test and urine sample as they could have a bladder infection. The doctor also asked whether they are sexually active before you can have because, obviously, "something to do," she said yes. My question is cystitis or not, aware of the sexually transmitted diseases and / or doctor can say if you get the results