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Epic Code LAB1231473 Nephrocheck (Inpatient Only)

Important Note

This test is intended to be used in conjunction with clinical evaluation in patients 21 years of age or older who currently have or have had, within the last 24 hours, acute cardiovascular and/or respiratory compromise and are ICU patients as an aid in the risk assessment for moderate to severe acute kidney injury (AKI) within 12 hours of patient assessment.

Test Name Alias

Nephrocheck | AKIRISK Score

Interface Order Alias

currently unavailable

Quick Collect

currently unavailable

Clinical Information

See important note above

Ordering Instructions

For inpatient ordering only.  Nephrocheck is a time sensitive urine specimen test.

Collection Instructions

Specimen Collection: Urine

 

Container(s): Urine Cup

Preferred Volume to Collect: 10 mL Fresh Urine

Minimum Volume to Collect: 2 mL Fresh Urine

Neonate Volume to Collect: Not for use in patients under 21 years of age

 

Collection Instructions:

  • Urine specimen MUST be received in laboratory for analysis within 1 hour of collection.
  • Urine samples received outside of 1 hour of collection, will be rejected.
  • Urine sample must be FRESH.  
  • Urine collection bags should be emptied first before a fresh sample of urine is collected.

 

Processing instructions (LAB)

  • Urine sample must be centrifuged and aliquoted within 1 hour of collection
  • Centrifuge/Spin: Yes
  • Aliquot specimen: Yes
  • Minimum volume of processed specimen: 1 mL

Rejection Criteria

  • Urine specimen MUST be received in laboratory for analysis within 1 hour of collection. Urine samples received outside of 1 hour of collection, will be rejected.
  • Urines with visible signs of hematuria (blood in urine) may be rejected.

Specimen Stability

Urine supernatant is stable 5 hours at Room Temperature.

Urine supernatant is stable 24 hours when refrigerated at 2-8° C.

No add-ons are allowed.

Test Frequency

Available daily, usual turn-around time 1 day.

Reference Range

Interpretive ranges:

Patients with AKIRISK Score of greater than 0.30 are at increased risk of developing moderate to severe AKI within 12 hours of assessment.

Patients with AKIRISK Score less than or equal to 0.30 are at lower risk of developing moderate to severe AKI within 12 hours of assessment.

Performing Department

Urines

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Methodology

Immunoenzymatic - Enzyme Linked Fluorescent Assay

CPT

84999

CDM Code

3018499902

Epic Test ID

123010832

LOINC

88993-1

 

From IS (Beaker)

Reviewed Date

9/5/2023