Freezing Urine for Pregnancy Tests: Accuracy & Procedure

Urine can be frozen for later pregnancy testing, but hormone degradation may reduce accuracy. Fresh urine is preferred.

If Freezing Is Necessary

• Freeze immediately after collection.
• Use clean, airtight container.
• Label with date/time.
• Store at ≤ -20°C.
• Thaw at room temperature when needed.
• Mix thoroughly before testing.
• Ensure sample is within expiration.

For reliable results, use fresh urine whenever possible.