hickory
09-15-2013, 09:40 PM
Question: does freezing urine change it's makeup and/or appearance in any way detectable by a lab or the naked eye??
Here's why I ask: just in case I opt to sub at any point, I froze some urine so I could test with the unfreezing process. I had the specimen in an air-tight bottle, then placed that inside a double-ziploc baggie then placed THAT inside a tupperware container for freezing. It was frozen for 2 days.
To unfreeze, I heated water to 100 degrees, then placed the container in the water. This took about 3 times before the temp of the specimen reached 92 degrees.
HOWEVER... after the unfreezing the sample was inconsistent and by that I mean there was some heavy matter (not quite fully liquid looking, but not solid either) floating at the bottom. So, I shook it up and that evened it all out, but after shaking I did notice visible particles that resembled small flakes of fish food floating.
Is that normal or is that something a technician could look at and view as a red flag or even use to fail someone??
Here's why I ask: just in case I opt to sub at any point, I froze some urine so I could test with the unfreezing process. I had the specimen in an air-tight bottle, then placed that inside a double-ziploc baggie then placed THAT inside a tupperware container for freezing. It was frozen for 2 days.
To unfreeze, I heated water to 100 degrees, then placed the container in the water. This took about 3 times before the temp of the specimen reached 92 degrees.
HOWEVER... after the unfreezing the sample was inconsistent and by that I mean there was some heavy matter (not quite fully liquid looking, but not solid either) floating at the bottom. So, I shook it up and that evened it all out, but after shaking I did notice visible particles that resembled small flakes of fish food floating.
Is that normal or is that something a technician could look at and view as a red flag or even use to fail someone??