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Lab Dept:
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Urine/Stool
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Test Name:
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KETONES, URINE
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General Information
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Lab Order Codes:
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UKE
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Synonyms:
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Acetest®; Urine Ketones; Nitroprusside Reaction for Ketones
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CPT Codes:
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81003 – Urinalysis, by dipstick or tablet reagent; automated, without microscopy
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Test Includes:
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Screen for urine ketones.
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Logistics
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Test Indications:
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Useful for evaluation of ketonuria, detection of acidosis, ketoacidosis, fasting, starvation, high protein diets, diabetes mellitus, and stress-hormone excess.
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Lab Testing Sections:
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Urinalysis
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1 hour
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Special Instructions:
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Submit only one (1) of the following: Catheterized specimen or clean-catch specimen.
Note: Indicate type of specimen (catheterized) on request form. Date and time of collection are required on request form for processing. Transport specimen to laboratory immediately following collection
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Specimen
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Specimen Type:
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Urine
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Container:
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Urine cup
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Draw Volume:
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Entire specimen collection (catheter or clean catch)
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Processed Volume:
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Minimum: 0.5 mL urine
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Collection:
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A specimen collected by catheterization is optimal; however, a clean-catch or mid-stream specimen is also acceptable. Random, voided specimens will be accepted, but are the least desirable and are not recommended if a urine culture is also being requested.
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Special Processing:
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N/A
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Patient Preparation:
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None
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Sample Rejection:
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Less than 0.5 mL urine submitted; mislabeled or unlabeled specimen
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Interpretive
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Reference Range:
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Negative
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Critical Values:
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N/A
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Limitations:
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Specimens containing large amounts of ascorbic acid or levodopa metabolites, valproic acid, phenozopyridine (Pyridium®), PSP dye, phenylketones or phthalein compounds may cause false-positives.
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Methodology:
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Multistix®, Nitroprusside reaction
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References:
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Strasinger SK (1989) Urinalysis and Body Fluids, FA Davis Company
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Ringsrud KM, et al (1995) Urinalysis and Body Fluids: A Color Text and Atlas, Mosby
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Brunzel N (1994) Fundamentals of Urine and Body Fluid Analysis, WB Saunders
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Updates:
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2/23/2012: Acetest is no longer performed as a confirmation of urine ketones.
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