How long is urine stored for analysis in cats? - briefly
Urine samples from cats can typically be stored at refrigerated temperatures (4°C or 39°F) for up to 24 hours before analysis. However, it is recommended to process the sample as soon as possible after collection for accurate and reliable results.
How long is urine stored for analysis in cats? - in detail
The storage duration of feline urine for analysis depends on various factors, including the specific test being conducted and the type of sample collected. Generally, fresh urine samples are preferred for most analyses due to their accuracy and reliability. However, under certain circumstances, urine can be stored before testing.
For biochemical tests such as those measuring glucose, protein, or ketones, urine should ideally be analyzed within a few hours of collection. Prolonged storage can lead to degradation of these components, affecting the test results. If immediate analysis is not possible, the sample should be refrigerated at 4°C (39-41°F) for up to 24 hours.
Bacterial cultures from urine samples require prompt processing as well. The longer the storage time, the greater the risk of bacterial overgrowth, which can skew test results. Urine specimens intended for bacterial culture should be refrigerated at 4°C (39-41°F) and processed within 24 hours of collection.
Urine samples collected for cytological examination may withstand longer storage times compared to biochemical or bacterial tests. These samples can be preserved in a fixative solution, such as formalin, which helps maintain the integrity of cells. When stored properly in a fixative, urine samples can be kept for several weeks before analysis.
It is crucial to note that prolonged storage of urine samples at room temperature should be avoided, as this can significantly affect the accuracy and reliability of test results. Refrigeration is generally recommended for all types of urine samples intended for analysis.
In summary, the optimal storage duration for feline urine samples varies depending on the type of analysis to be performed. Biochemical tests and bacterial cultures require prompt processing, ideally within 24 hours, while cytological examinations can tolerate longer storage times when preserved in a fixative solution. Proper handling and storage of urine samples are essential for ensuring accurate and reliable test results.