The FDA has issued an update on Cardinal Health’s nationwide recall of approximately 267 million Monoject flush prefilled saline syringes (0.9% Sodium Chloride).

The devices have been found to reintroduce air into the syringe after the air has been expelled, which could result in injection of air into blood vessels and create the potential for air embolism, the agency said.

The company has received 37 reports of the plunger pulling back in the syringes, although no injuries have been reported.