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Investigations

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The diagnosis is confirmed by catheterisation.

Additional investigations should be performed to ascertain the cause:

  • urinalysis - blood, infection
  • blood - white cell count, haemoglobin, urea and electrolytes
  • abdominal radiology might be performed to look for bladder calculi

A rectal examination should also be done to assess the size of the prostate and to exclude constipation.

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