Reticulocyte Count

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

• Taking medicines, such as levodopa, corticotropin, azathioprine (Imuran), chloramphenicol (Chloromycetin), dactinomycin (Cosmegen), medicines to reduce a fever, medicines to treat malaria, and methotrexate and other cancer chemotherapy medicines.
• Getting radiation therapy.
• Taking sulfonamide antibiotics (such as Bactrim or Septra).
• Being pregnant.
• Having a recent blood transfusion.

Go to previous section	Go to top of page	Go to next section
Author:	Jan Nissl, RN, BS	Last Updated: September 28, 2006
Medical Review:	Renée M. Crichlow, MD - Family Medicine Brian Leber, MDCM, FRCPC - Hematology
© 1995-2008 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.