1 of 3 things: Hi. If your TSH is 0.344, which is just slightly below the normal range, it could be: 1) normal, no thyroid disease (the normal range EXCLUDES 5% of normal values), 2) mildly hot (autonomously hyperfunctioning) nodule (s), or 3) your doctor checked it while it was heading down.
Rat urine, like human urine, can vary in different degrees. Normally, it will be a light yellow. If the rat is highly active, it will be taking in a lot of water. This may result in urine that is lighter or clear. This is absolutely normal in most circumstances. If the rat is drinking excessively and is not active, that could be a sign of trouble. Older or dehydrated rats may have darker urine.
It is probably caused by a plant pigment and does not affect the health of the animal.. Red urine is a descriptive term for the condition where a rabbit's urine varies in color from the normal pale yellow to dark yellow, carrot orange, brown, or bright red. Red urine is not a medical problem.