Grey Sodium flouride (NaFl)

Immediatley following collection, mix sample by inverting 8 - 10 times to prevent clotting

1. Spin,
2. Transfer plasma to a False bottom plasma/serum transport vial/tube (AHL), labelled as Na Fl plasma' and refrigerate within 15 minutes of collection.

If unable to spin within 15 minutes of collection specimen must be placed on ice until centrifugation occurs and plasma is separated from the cells.

False bottom plasma/serum transport vial/tube (AHL)

Architect:

Refrigerated - 3 days

Roche:

Refrigerated (preferred) - 14 days

Ambient - 8 hours

• Improper labels (unlabeled or mislabeled)
• Hemolysis 
• Improper anticoagulant or ratio
• Delay in transport
• Improper storage temperature affecting results
• Inappropriate timing of collection
• Improper container
• Leaking container resulting in compromised specimen
• Quantity not sufficient (QNS)

Enzymatic

0.50 - 2.2 mmol/L

>2.0 mmol/L

(First time in 24 hour)

**Excludes POCT