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HelpEpic Test Code LAB403 Ketones: Urine Reagent Strip
Performing Location(s)
BMC,CRH,LFH,HRK,OCH,FTT,FOX
Specimen Type
Random Urine
Preferred Container
Random Urine Tube
Alternate Container
Sterile Container
Minimum Volume to Submit for Testing
5 mL Urine
Transportation Needs
Deliver specimen to the laboratory within 1 hour of collection. If not possible see “Storage Requirements”
Storage Requirements
Refrigerate up to 24 hours. DO NOT USE CHEMICAL PRESERVATIVES
Causes for Rejection
Mislabeled or unlabeled specimen
>24 hrs old Refrigerated
> 2hrs Room Temperature
Limitations
This methodology does not react with acetone or B-hydroxybutyric acid. False positive results (trace or less) may occur with highly pigmented urine specimens or those containing large amounts of levodopa metabolites. Compounds that contain sulfhydryl groups (e.g. 2-mercaptoethane sulfonic acid) may cause false positive results or an atypical color reaction.
Reference Values
| Population | Units | Reference Range |
| All Populations | None | Negative |
|
Critical Value: |
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Days of Analysis
All
Available STAT
Yes
Includes
Chemical test for the presence of acetoacetic acid in urine
Methodology
Urine dipstick, acetoacetic acid/ nitroprusside reaction
CPT Code
81003
Last Updated
22-July-19