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Specimen Collection Manual and Test Catalog

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RENAL FUNCTION PANEL

Geisinger Epic Procedure Code:  LAB2998    Geisinger Epic ID:  18818

SPECIMEN COLLECTION
Specimen type: 

Plasma or serum


Preferred collection container: 
Specimen required: 

2 mL of serum or plasma; minimum 0.5 mL.



SPECIMEN PROCESSING
Processing instructions: 

Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. Keep specimen container tightly capped.


Transport temperature: 

Refrigerated.


Specimen stability: 

Plasma (PST): Glucose stable 4 hours at room temperature, 8 hours refrigerated. Potassium stable for 12 hours at room temperature or refrigerated. See individual member listing for more details. 
Serum (SST): See individual member listing for more details.


Rejection criteria: 

Specimen is not acceptable for glucose or potassium determination if not centrifuged within two hours of collection time. See individual member listing.



TEST DETAILS
Reference interval: 

See individual member listing.
Estimated GFR > 60.


Critical values/courtesy alerts: 
See individual member listing.
CPT code(s):  80069
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Test includes: 

Albumin, calcium, CO2, chloride, creatinine, glucose, phosphorus, potassium, sodium, BUN, estimated GFR, anion gap


Methodology: 
See individual member listings.
Synonyms: 

KIDNEY FUNCTION PANEL, RFB, KIDNEY PANEL


Clinical significance: 

See individual member listings.


Doctoral Director(s): 
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Review Date:  12/27/2024

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