Canis ISSN: 2398-2942

Urine collection: freeflow

Synonym(s): Midstream urine sample collection

Contributor(s): Stephen Barr

Introduction

  • Collection of fresh urine sample allows urinalysis to be performed.

Uses

  • Collection of urine sample for:
    • Glucose measurement when diagnosing or monitoring diabetic patients Diabetes mellitus.
    • Gross examination of urine for discoloration Discolored urine , eg hematuria, bilirubinuria, myoglobinuria (but gives no indication of source of discolouration ie renal, cystic or lower urogenital tract).
    • Measurement of specific gravity Urinalysis: specific gravity in assessing renal function.
    • Biochemical urinalysis (usually in assessment of renal function).
    • Sediment examination for presence of casts in diagnosis of renal tubular disease.
    • Sediment examination for presence of crystals in diagnosis of urolithiasis Urolithiasis.

Advantages

  • Non-invasive.
  • Requires no specialized equipment - can be performed by owner at home.
  • Usually provides adequate sample for analysis.

Disadvantages

  • Contamination may make bacterial culture unreliable.
  • Requires animal to urinate voluntarily (may result in delay in urine collection).
  • Cannot discriminate between urine produced in upper urinary tract and contamination of sample in lower urogenital tract.
  • Not appropriate if animal has urinary tract obstruction.

Requirements

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Procedure

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Further Reading

Publications

Refereed papers


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