what temperature is urine when it leaves the body, pre-hitting air? is it based on body temperature?
G’day
It comes out at body temperature, of course.
Regards,
Agback
And, while Agback’s certainly right, body temperature varies with what part of the body one is considering.
Well, we should be able to narrow THAT down pretty easily…
Since it originates in the bladder (having been stored there for some time) and leaves quite quickly, I think we can surmise that it would be approximately core body temperature.
Not trying to pass a drug test are we?
What about the effect of the decrease in pressure? Would that be significant in lowering urine temperatures? Let’s assume a bladder pressure of 1.5 kPa and a volume of 100mL.
Any physicists out there feel like doing the calculations?
Nope.
I mean I`m not a physicist, so I have no desire to do the calculation. However, one could take a thermometer and obtain a rectal temp then pee into the cup and take the temp of the urine.
I have no desire to do that either.
What about the effect of the decrease in pressure?
Agreed with whuckfistle: no. Unlike gases, liquids are near-as-dammit incompressible, so a trivial pressure drop isn’t going to alter the temperature.
Mine can put out a fire or melt ice so it must be somewhere between the two.
Having handled many a freshly deposited urine in a cup I can state it feels very warm, pretty near body temp. On the other hand, a cold specimen that was supposedly just collected is viewed with suspicion.
-Lab flunky
Are you saying I have a narrow d<ahem>?
also, different people have different body temps, my normal temp is 97.6, lower than average.