ISSN 2398-2950      

Urinalysis: red blood cells

ffelis

Synonym(s): RBC


Overview

Sampling

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Tests

Methodologies

Dipstick

  • Immerse dipstick in urine until wet.
  • Remove and shake off excess urine.
  • Hold horizontally to avoid run-off between pads.
  • Read test at correct time interval.

Microscope examination

  • Spin urine and make smear of sediment.
    Either Add 1 drop of sedistain or a supravital stain such as Sternheimer-Malbin to the sediment.
    Or Leave 0.5 ml urine in centrifuge tube.
  • Resuspend sediment by vigorously tapping the centrifuge tube.
  • Transfer one drop of sediment to a microscope slide (via a pipette) and place a coverslip over it.
  • Lower the condenser on microscope to improve contrast.
  • Systematically examine entire specimen under the lower power objective, assessing quantity and type of sediment.
  • Examine sediment under the high power objective to identify morphology of elements and to detect bacteria using Gram stain (Diff-quik).

Availability

  • All veterinary clinics.
  • External laboratories.

Technique (intrinsic) limitations

  • Site of hemorrhage.

Result Data

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Further Reading

Publications

Refereed papers

Other sources of information

  • Kaneko J J (1997) Clinical Biochemistry of Domestic Animals. 5th edn. Eds: Harvey J W & Bruss M L. Academic Press, USA.
  • Duncan J R, Prasse K W & Mahaffy E A (1994) Veterinary Laboratory Medicine Clinical Pathology. 3rd edn. Iowa University Press, USA.
  • Reference values from BSAVA Formulary. 2nd edn.

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