NOT KNOWN FACTS ABOUT PREDNISONE INJECTION DOSAGE

Seeing traces or specks of blood is not really indicative that you have entered a blood vessel. Normally, each time a vein (blood vessel) is threaded, blood will pour into the barrel when pulling back the plunger. If you are doing thread a blood vessel, you do not necessarily have to fully clear away the syringe and start over again.Verywell Wellne