Patient :Can donating plasma on a regular basis lead to a negative blood pregnancy test result. From my research, I have discovered that Hcg is extracted from plasma/serum in the blood. I donated plasma 24 hours or less prior to the time of the pregnancy test blood draw. Could this throw off the result?
Symptoms: Two urine hpt. Both negative two weeks after lmp. Negative blood test 6 weeks after lmp. Still waiting on menstrual cycle and somehow "feel" pregnant.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.