Unlike wine, urine does not age well


A photograph from this sample highlights the need to analyse fresh urine samples, ideally within an hour of sample collection.

The photograph below is a wet urine preparation from a dog viewed microscopically (20x).  The sample was taken by free-catch 5 days prior.  Fungal hyphae are most often a contaminant when seen in free-catch urine samples.

Optimal viewing of an unstained fluid sample requires the microscope condenser to be wound down, throwing shadows on the otherwise almost invisible fungal structures.

Always remember, fresh is best.