Serum or Plasma
Cincinnati Children's Nephrology
Other Reference Test
Monday, Wednesday, Friday
3-6 mL Blood
Plasma collected in a lithium heparin (green-top) tube (PST) is also acceptable. Place specimen on wet ice immediately after collection and send to lab.
Room Temp: Unacceptable; Refrigerated: 5 Days; Frozen: >6 Months
3 mL Serum or Plasma
1.5 mL Serum or Plasma
Separate serum or plasma within 2 hours of collection and freeze immediately. Complete a Cincinnati Children's Nephrology Clinical Lab requisition and submit with specimen frozen Monday-Thursday, no weekends or holidays.