CMH Lab Section
1 mL blood in Sodium Heparin green
or gray top at LEAST half full (3 mL minimum)
STAT, Urgent, Routine
Turn Around Time
STAT: 1 hour
Routine: 2-4 hrs
Gray tubes obtained from Lab
Deliver on ice IMMEDIATELY to the Lab
Specimens not placed on ice MUST be spun within 15-minutes of collection.
Specimens placed on ice MUST be spun within 1-hour of collection.
Separate and freeze plasma if not tested immediately.
All ages: 0.7 - 2.1 mmol/L