If you are delivering a specimen to the lab, there might be special instructions for transporting the specimen. Your physician should provide you with written instructions for preparing for your test. Follow those instructions exactly as they are written. If you are not certain if special preparation is required, or if you have questions about the instructions you were given, contact your physician’s office.
If you did not follow the test preparation instructions you received from your physician, let the staff at the specimen collection lab know about this before your specimen is collected.