Clinics and Departments

Laboratory Services

Lab Dept:

Urine/Stool

Test Name:

KETONES, URINE

General Information

Lab Order Codes:

UKE

Synonyms:

Urine Ketones; Nitroprusside Reaction for Ketones

CPT Codes:

81003 – Urinalysis, by dipstick; automated, without microscopy

Test Includes:

Screen for urine ketones.

Logistics

Test Indications:

Useful for evaluation of ketonuria, detection of acidosis, ketoacidosis, fasting, starvation, high protein diets, diabetes mellitus, and stress-hormone excess.

Lab Testing Sections:

Urinalysis

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1 hour

Special Instructions:

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

Specimen

Specimen Type:

Urine

Container:

Urine cup

Draw Volume:

Entire specimen collection (catheter or clean catch)

Processed Volume:

Minimum: 0.5 mL urine

Collection:

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.

Special Processing:

N/A

Patient Preparation:

None

Sample Rejection:

Less than 0.5 mL urine submitted; mislabeled or unlabeled specimen

Interpretive

Reference Range:

Negative

Critical Values:

N/A

Limitations:

Specimens containing large amounts of ascorbic acid or levodopa metabolites, valproic acid, phenozopyridine (Pyridium®), PSP dye, phenylketones or phthalein compounds may cause false-positives.

Methodology:

Multistix®, Nitroprusside reaction

References:

Strasinger SK (1989) Urinalysis and Body Fluids, FA Davis Company

Ringsrud KM, et al (1995) Urinalysis and Body Fluids: A Color Text and Atlas, Mosby

Brunzel N (1994) Fundamentals of Urine and Body Fluid Analysis, WB Saunders

Updates:

2/23/2012: Acetest is no longer performed as a confirmation of urine ketones.



  Lab Test Directory
    Chemistry
    Coagulation
    Flow/Immunology
    Hematology
    Microbiology/ Virology
    Other Fluids
    Pathology
    Serology
    Transfusion Services
    Urine/Stool

  Search Lab Test Directory
    List All Documents

  Lab Staff

  E-mail Lab Services