IRON, SERUM (087-0423)

CPT 4 Code: 83540 Limited Coverage Test (NCD)

Test Order Mnemonic: IRON

Lab: Clinical Chemistry

Request Form: Routine Chemistry Form 1

Patient Preparation:  Patient should be fasting for 10-12 hours.

Collection: Routine venipuncture; blood should be collected in the morning

Storage Instructions: Centrifuge the specimen to separate serum from red cells within 4 hours of collection.  Refrigerate the specimen at 2-8°C.

Causes for Rejection: Gross hemolysis, improperly labelled specimen, specimen QNS

Availability: Samples are received 24 hours per day at Sample Management, Room 5.138, McCullough.

Turnaround Time: Routine: 24-48 hours; STAT: 1 hour.

Specimen: Blood

Volume: 3 mL blood

Minimum Volume: 0.5 mL plasma

Container: SST (gel barrier) or red-topped tube

Reference Ranges: 50-160 mgl/dL

Critical Values: Potential Toxicity: >350 mgld/L

Test Method: Multiple Point Rate

Reviewed/revised April 2007 by P. Harris