Can steroid injection alter effectiveness of pregnant test?think 4w5d preg.had corticosteroid in shoulder twice in 2 wks. false neg? how long alters?

Steroid injection: These tests look for production of human chorionic gonandotropin (hcg), a hormone that is produced by the fertilized egg. While there are causes for false positive and negative results i'm not aware of any connection between a cortisone shot to the shoulder and HCG levels. Having said that, speak with your obstetrician about advice relative to use of any medication in early pregnancy. Good luck.

No: The steroid injection will not effect the results of a pregnancy test.