renal threshold

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1. the level that must be reached for an effect to be produced, as the degree of intensity of stimulus that just produces a sensation.
2. that value at which a stimulus just produces a sensation, is just appreciable, or comes just within the limits of perception.
auditory threshold the slightest perceptible sound.
threshold of consciousness the lowest limit of sensibility; the point of consciousness at which a stimulus is barely perceived.
defibrillation threshold DFT; the minimum amount of energy in joules that will consistently terminate ventricular fibrillation.
fibrillation threshold the least intensity of an electrical impulse that will cause cardiac tissue to begin fibrillation.
pacing threshold the minimal electrical stimulus required to produce consistent cardiac depolarization.
renal threshold that concentration of a substance (threshold substance) in plasma at which it begins to be excreted in the urine.
sensing threshold in cardiac pacing terminology, the voltage of the minimum signal that consistently activates pulse generator function.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

re·nal thresh·old

concentration of plasma substance above which the substance appears in the urine.
Farlex Partner Medical Dictionary © Farlex 2012

re·nal thresh·old

(rē'năl thresh'ōld)
The plasma concentration level of a substance below which none appears in urine.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
The lack of insulin causes an increase of fasting blood glucose (around 70-120 mg/dL in healthy people) that begins to appear in the urine above the renal threshold (about 190-200mg/dl in most people), thus connecting to the symptom by which the disease was identified in antiquity.
As the renal threshold of serum myoglobin is reached, the urine becomes cola-colored (Hamer, 1997).
(1) An increased renal threshold for glucose excretion also was recognized as a defect in T2DM more than 6 decades ago.