IONIZED CALCIUM

Message

Please see additional information for test change notifications.

Test Code

LAB3041150

CPT Codes
82330, 83986

Preferred Specimen

Ruby Inpatient Collections: Syringe Only

Inpatient Collections: One 5 mL dark green top tube or syringe

Outpatient Collections: One 5 mL gold top tube

Minimum Volume

1 mL blood

Instructions

RUBY INPATIENT COLLECTIONS: COLLECT SYRINGE ONLY. DELIVER SPECIMEN TO BLOOD GAS LAB (5TH FLOOR RUBY).
Syringes should not contain air spaces or air bubbles. Anaerobic caps should be used. Citrate in sample and very high doses of heparin
will falsely decrease ionized calcium. Test performed in Blood Gas Lab.

INPATIENT COLLECTIONS (All system labs EXCEPT Ruby): Collect One dark green top tube or syringe

FOR OUTPATIENT COLLECTIONS: A single gold top tube must be drawn for this and cannot be shared for other testing. Do not open tube until time of analysis. Specimens collected in the outpatient setting will be routed to Quest Diagnostics (test number 306).

Transport Temperature

Room temperature or refrigerated

Specimen Stability

Six days at 4° C or ambient temperature

Methodology
Ion Selective Electrode, GEM Premier Analyzer Reference range: 1.10 - 1.30 mmol/L Critical range: <0.75 or >1.63 mmol/L

Quest test 306: Ion Specific Electrode (ISE)

Setup Schedule

1-3 days

Reference Range

1.10-1.30 mmol/L
Critical Range: <0.75 or >1.63 mmol/L

Performing Laboratory
West Virginia University Hospital, Inc.
Braxton County Memorial Hospital
Camden Clark Medical Center
Potomac Valley Hospital
Reynolds Memorial Hospital
St Joseph's Hospital

Additional Information
Test Change Notification
Quest Test # 306 Info

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.