How long can urine analysis for a cat be stored? - briefly
Urine samples from cats can typically be stored at room temperature for up to 24 hours before analysis. For longer-term storage, refrigeration is recommended, extending the viable period to several days.
How long can urine analysis for a cat be stored? - in detail
The duration that feline urine samples can be stored before analysis is crucial for obtaining accurate results. This preservation period depends on several factors, including the type of test being conducted and the storage conditions.
For general urinalysis, such as assessing color, clarity, specific gravity, pH, protein, glucose, ketones, bilirubin, and urobilinogen, urine samples can typically be stored for up to 24 hours at room temperature (around 70°F or 21°C). However, it is recommended to refrigerate the sample if storage exceeds this time frame. Refrigeration extends the stability of these components up to 72 hours.
When it comes to bacteriological culture, prompt analysis is essential. Ideally, the urine sample should be cultured within one hour of collection. If immediate processing is not possible, refrigeration at 4°C (39°F) can preserve the sample for up to 12 hours. Beyond this period, the viability and accuracy of the culture may decrease significantly due to bacterial growth or degradation of components in the urine.
For biochemical analysis, including electrolyte measurements and enzyme activities, refrigeration is also crucial. These samples should be stored at 4°C (39°F) for no more than 24 hours before analysis. Prolonged storage or exposure to higher temperatures can lead to the degradation of these compounds, resulting in inaccurate test results.
In summary, while general urinalysis components can be stable at room temperature for up to 24 hours and refrigerated for up to 72 hours, bacteriological cultures should ideally be processed within one hour or refrigerated for no more than 12 hours. Biochemical analyses require immediate refrigeration and should not exceed 24 hours in storage before testing. Adhering to these guidelines ensures the reliability of feline urine analysis results, aiding in accurate diagnosis and treatment planning.