Test Methodology:

Colorimetric

Running Day:

Daily

Turn Around Time:

Routine: Two hours

STAT: One hour 

Specimen Requirement:

3 cc serum (red top or SST) 

Patient Preparation:

8 to 10 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Special Considerations:

Avoid hemolysis; random or 24-hour sample for urine 

Unit Conducting the Service:

Clinical Chemistry Services