Guaiac Test

ExitCare ImageA guaiac test checks for blood in the poop (bowel movement).


  • Avoid alcohol and iron pills.

  • Only take medicine as told by your doctor.

  • Ask your doctor about stopping or changing medicines.

  • Avoid Vitamin C pills or medicines.

  • Avoid antiseptic solution that has iodine in it.

  • Avoid citrus fruits and juices.


  • Put the sample cards and sticks in the bathroom so they will be ready when you have to poop.

  • Collect a poop sample with the stick.

  • Smear a small amount of poop on the card.

  • Take another sample from a different part of the poop.

  • Store the cards with the samples in a plastic bag.

  • Throw the rest of the poop into the toilet and flush.

  • Wash your hands well.


  • Bring the cards in a plastic bag to your clinic.

  • Do not wait more than 3 days to take the card to your clinic.