I’ve had a blood transfusion, radiation therapy, or surgery recently. Will this affect the sample?

We recommend waiting one week after having serious surgery or radiation therapy before taking a sample. We suggest waiting 1-2 weeks after a blood transfusion […]

My cheek bled when I did the scraping. Will this affect the sample?

While we do not encourage scraping so vigorously as to draw blood, this does happen from time to time. Blood is an excellent carrier of […]