Vacutainer® Tube 4.5 mL Sodium (Blue)

https://www.fda.gov/medical-devices/coronavirus-covid-19-and-medical-devices/sodium-citrate-blood-specimen-collection-light-blue-top-tubes-frequently-asked-questions

• "On June 10, 2021, the FDA added these tubes (product codes GIM and JKA, sodium citrate tubes only) to the section 506J device shortage list. The FDA has also provided conservation strategies for these tubes during the COVID-19 public health emergency. The FDA recommends health care and laboratory facilities develop and implement conservation strategies to minimize the use of these tubes and maintain the quality and safety of care for patients who need coagulation testing. On July 22, 2021, the FDA issued an Emergency Use Authorization (EUA) for specific sodium citrate tubes for emergency use in health care settings to collect, transport, and store blood specimens for coagulation testing to aid in the identification and treatment of coagulopathy in patients with known or suspected COVID-19, with testing performed by authorized laboratories."