MICROALBUMIN/ CREATININE RATIO PANEL

Message
CHEMISTRY


Test Code
M/CR RATIO


Alias/See Also
URINE MICROALBUMIN/CREAT RATIO, RATIO MICROALB/CREAT


Includes
MICROALBUMIN-QUANTITATIVE, MICROALBUMIN/CREATININE RATIO, CREATININE


Preferred Specimen
URINE


Minimum Volume
2mLs


Instructions
COLLECT RANDOM URINES SAMPLE IN A STERILE CONTAINER PROVIDED BY PHYSICIAN'S OFFICE OR LAB. IF BRINGING IN FROM HOME MAKE SURE FULL NAME, FULL SSN, DATE/TIME IS ON LABEL. SEN TO LAB.


Transport Container
STERILE CONTAINER- YELLOW BD URINE TUBE


Transport Temperature
REFRIGERATED


Specimen Stability
Refrigerated (2-8°C): 7 days
Frozen (-20°C or colder): 1 month


Methodology
Immunoturbidimetric and calculation

Setup Schedule
DAILY


Report Available
DAILY


Limitations
Random urine albumin is useful as a screening test. Results should be verified in 3-12 months with at least one 24 hour microalbumin measurement before any medical decisions are made.


Reference Range
Test Reference range Units
Microalbumin Not established mg/dL
Creatinine Not established mg/dL
Microalbumin/Creatine Ratio 0 - 29.9 mg/G


Clinical Significance
Creatinine is the end-product of Creatine Metabolism. Creatine is present primarily in muscle and the amount of Creatinine produced is related to total skeletal muscle mass. Daily Creatinine production is fairly constant, except when there is massive injury to muscle. The kidneys excrete Creatinine very efficiently and blood levels and daily urinary excretion of Creatinine fluctuates very little in healthy normal people. Since blood and daily urine excretion of Creatinine show minimal fluctuation, Creatinine excretion is useful in determining whether 24-Hour urine specimens for other analytes (e.g., Protein) have been completely and accurately collected. Microalbumin is albumin excreted in the urine and is a sensitive marker of nephropathy. It is used to screen for early renal disease in diabetic patients.


Performing Laboratory
WHITE RIVER JUNCTION VT VA- CHEMISTRY 802-295-9363 EXT: 5518, 5519



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.