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Epic Code LAB3468 Potassium, Whole Blood

Important Note

SUSPECTED PSEUDO HYPERKALEMIA LABORATORY EVALUATION

Potassium, Whole Blood  (WBK) testing is recommended when  PSEUDO HYPERKALEMIA is suspected.

WBK analysis is performed on an unspun anticoagulated (Whole Blood) VENOUS specimen. Arterial specimen NOT required.

WBK does NOT require respiratory therapy to collect an arterial specimen, or to be involved.

It is drawn by phlebotomy, hand delivered and analyzed at the Spectrum Health Regional Lab (35 Michigan) or Blodgett Respiratory department.

Please contact Laboratory for additional information.

Test Name Alias

Potassium Whole Blood Nova | 7015

Interface Order Alias

11746

Quick Collect

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Clinical Information

See important note above

Icons & Photos

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Collection Instructions

Specimen Collection: Whole Blood

 

Container(s): 4 mL Lithium Heparin tube or Capped heparinized syringe***

***Capped heparinized syringe must be used if pseudo Hyperkalemia is suspected

Preferred Volume to Collect: 3.0 mL

Minimum Volume to Collect: 2.0 mL

Neonate Volume to Collect: not applicable

Capillary collect ok? N

Microtainer acceptable: N

 

Collection Instructions:

  • After collection
    • Syringe: gently mix by rolling and inversion
    • Tube: Gently invert 8 – 10 times to mix
  • Must be analyzed within 30 minutes - hand deliver to laboratory or respiratory immediately.
  • Do not centrifuge or aliquot

Rejection Criteria

Reject due to

  • Syringe still has needle. Remove needle and cap off syringe before bringing to the Lab or Respiratory Department

Test Frequency

Available 24 hours, usual TAT 1 day

Reference Range

0 up to 3 days: 4.0 - 6.5 mmol/L

3 days up to 3 months: 3.8 - 5.5 mmol/L

3 months and up: 3.4 - 5.0 mmol/L

 

Laboratory Critical Values Table 

Performing Department

Multiple Departments
Chemistry or Respiratory Care

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Corewell Health Blodgett Respiratory, Grand Rapids, MI

Methodology

Ion Selective Biosensor

CPT

84132

CDM Code

3018413201

Epic Test ID

1230101063

Mayo Access Code

Not available

Reviewed Date

3/23/2022