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Test Code CREAT Creatinine

Additional Codes

Hospital Ordering Code
LAB66 CREATININE, SERUM

Specimen Requirements

Submit only 1 of the following specimens:

 

Specimen Type: Plasma

Container/Tube: Green top (lithium heparin)

Specimen Volume: 0.5 mL

Additional Information: Label specimen appropriately (plasma).

 

Specimen Type: Serum

Container/Tube: Serum gel

Specimen Volume: 0.5 mL

Additional Information: Label specimen appropriately (serum).

Performing Laboratory

Unity Point-Sioux City-Chemistry

CPT

82565

Methodology

Enzymatic

Day(s) Test Set Up

Monday through Sunday

Specimen Transport Temperature

Ambient

 

7 days at 15-25 °C

7 days at 2-8 °C

3 months at (-15)-(-25) °C

Calculation

Estimated glomerular filtration rate equation:

 

 

Male

 

If CREA/0.9 >1 

(((142*1)*((CREA/0.9)^-1.2))*(0.9938^age in yrs))

 

If CREA/0.9 <1

(((142*((crea/0.9)^-0.302))*(0.9938^age in yrs))

 

 

Female

 

If CREA/0.7 >1

(((142*((CREA/0.7)^-1.2))*(0.9938^age in yrs))*1.012)

 

If CREA/0.7 <1

(((142*((crea/0.7)^-0.241))*(0.9938^age in yrs))*1.012)