Test Overview
Test Methodology

Ion Selective Electrode

Reference Range *

90 - 111 mmol/L

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Tuesday - Saturday
Analytic Time

3 - 7 days

Soft Order Code
Reference Laboratory
Quest Nichols San Juan 3382
Special Testing
Specimen Requirements
Collection Instructions

Collect specimens in green and lav top tubes. Send to Specimen Processing at room temperature. Specimen must be received by Quest within 48 hours.

Normal Volume
4 mL Green top whole blood AND 4 mL Lav top whole blood
Minimum Volume
1.5 mL whole blood for either
Storage Temperature
Ambient preferred, refrigerated acceptable
Rejection Criteria
Hemolyzed or frozen samples
Additional Information

Test sent to Quest Valencia, performed by Quest Nichols San Juan Capistrano

CPT Code
Fee Code