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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Creatinine 24 Hour Urine
Test CodeUCREA24H
CPT Codes
82570
Preferred Specimen
24 Hour Urine Jug
Transport Container
24 Hour Urine Jug
Transport Temperature
Store refrigerated during collection; Transport at Room Temp
Specimen Stability
Room Temp: 3 Days; Refrigerated: 5 Days
Methodology
Vitros 7600/3400
Reference Range
Female: 0.8-1.8 g/24hr; Male: 1.0-2.0 g/24hr
Clinical Significance
Creatinine is the endproduct 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 shows 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
Performed By
RFGH Laboratory
Performing Laboratory
RFGH Laboratory
