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Urinalysis, Urine - Saskatoon

Discipline

Biochemistry

Specimen Information

Specimen types accepted

  • Random Urine (specify clean catch, midstream, or catheter)

Specimen collection container

  • Preferred Collection Container: Graduated conical bottom tube without preservative or Graduated conical bottom tube with preservative
  • Alternative Collection Container: Sterile container (Starplex or similar container)

Required volume

  • Optimal volume: 8.0 mL
  • Minimum volume: 3.0 mL (Without Preservative) or 7.0 mL (With Preservative)

(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)

  • Pediatric volume: 1.0 mL (Without Preservative)

Transport and stability

  • 48 hours at 25°C with preservative​
  • 2 hours at 2-25°C without preservative

Rejection criteria

  • Specimens received where the proper collection protocols were not followed
  • Specimens received more than 2 hours after collection without preservative
  • Less than 7 mL with preservative tube
  • Grossly bloody specimens: urinalysis will be cancelled and microscopic ordered
  • Unusually colored specimens (i.e.. blue-green): urinalysis will be cancelled and microscopic ordered
  • ​Pathology and Laboratory Medicine Acceptance and Rejection Criteria   

Performance

Methodology

  • Reflectance photometry
  • Light microscopy (manual or automated)

Days/times performed

Availability
  • 24 hours a day
Testing site
  • ​RUH, SCH, SPH
  • Rural-Borden, Cudworth, Delisle, Humboldt, Lanigan, Leroy, Nokomis, Rosthern, Spalding, Strasbourg, Wadena, Wakaw, Watrous, Watson, Wynyard

Maximum laboratory time

Results reporting
  • In Hospital reported within 1 hour
  • Community urgent reported within 6 hours
  • Community Routine reported within 24 hours

Specimen retention time

  • Entire specimen is usually used for analysis

Other information

​Reflex testing
  • Microscopic analysis will be performed:
    • On leukocyte esterase results ≥ 75 (+)
    • On protein results ≥ 0.5 g/L (+)
    • On blood results ≥ Trace
    • On ascorbic acid results ≥ (+) (For RUH, SPH and Saskatoon community lab  sites)
    • On all specimens with chemical interference due to phenazopyridine or unusually colored urine

Last Updated: September 30, 2024