Another name for kidney threshold.
Blood concentration of a substance that exceeds the kidneys' capacity for reabsorption and leads to the appearance of the substance in urine.
The point at which the blood is holding so much of a substance, such as glucose, that the kidneys allow the excess to "spill" into the urine. The is also called "kidney threshold," "kidney spilling point" or "leak point."
If the blood glucose level is above the level glucose will show up in the urine when you test it.
Concentration of substance exceeding the ability of the renal tubule to reabsorb it and it then appears in the urine; e.g. diabetic urine contains glucose, which is normally absent.
Normally, glucose is a precious commodity and the body goes to great lengths to keep it. The kidneys possess a natural barrier to prevent the loss of glucose. In diabetes, because of the excessive sugar in the bloodstream, this barrier is overwhelmed and sugar spills into the urine. The level at which this spilling over occurs differs from cat to cat (surprise surprise!) but it's when the blood sugar level reaches about 12 to 15. This spilling over is known as exceeding the renal threshold
The blood sugar level at which the kidneys "spill" excess sugar from the blood into the urine; the average is about 10mmol/l, but wide variation exists.
the maximum amount of a substance that can be present in the bloodstream without spilling out into the urine.
Kidney threshold, Spilling point, Leak point The level of glucose in the blood at which point some glucose "spills" into the urine.
When the blood is holding so much of a substance such as glucose (sugar) that the kidneys allow the excess to spill into the urine. This is also called "kidney threshold," "spilling point," and "leak point."
the blood glucose level above which glucose spills into the urine
Blood glucose concentration above which glucose leaks into urine
In physiology, the renal threshold is the concentration of a substance dissolved in the blood above which the kidneys begin to remove it into the urine. Renal thresholds vary by substance – the low potency poison urea, for instance, is removed at much lower concentrations than glucose. Indeed, the most common reason for the glucose renal threshold ever being exceeded is diabetes.