Specimen must arrive within 2 hours of draw.
Container/Tube: Serum gel tube
Specimen Volume: 5 mL of serum
Transport Temperature: Ambient
Collection Instructions: Draw blood 8 to 12 hours after last dose. Allow specimen to clot for 30 minutes. Spin specimen in centrifuge. If there is a delay in transport of ≥2 hours, send specimen refrigerated. If there is a delay in transport of ≥24 hours, send specimen frozen in plastic vial.
Colorimetric
Therapeutic concentration: 0.6-1.2 mmol/L
Critical value (automatic call-back): >1.5 mmol/L
Monday through Sunday
Available STAT
80178