BASIC RENAL PHYSIOLOGY
Glossary

albuminuria. presence of albumin in urine

anuria. no urine formation

C : Symbol for Clearance

calc-. refers to calcium (Ca); e.g. hypocalcemia

diabetes. certain diseases characterized by diuresis

diabetes insipidus. diuresis of dilute urine

diabetes mellitus. diuresis characterized by glucose containing urine

diuresis. excretion of a large volume of urine

diuretic. substance that causes diuresis

-emia. refers to blood

endogenous. originating or produced within the body

enuresis. involuntary or uncontrolled urination

exogenous. originating or produced outside of the body

GFR. Abbreviation for Glomerular Filtration Rate

glucosuria. presence of glucose in the urine

hyperosmotic. greater osmotic activity or more concentrated than blood plasma and interstitial fluid

hypo-osmotic. smaller osmotic activity or less concentrated than blood plasma and interstitial fluid

isosmotic (or iso-omotic). same osmotic activity as blood plasma and interstitial fluid

kal-. refers to potassium (K); e.g. hyperkalemia

natr-. refers to sodium (Na); e.g. hypernatremia

nephritis. inflammation of the kidney

nephro- . refers to kidney or its functional unit (nephron)

nephrology. medical specialty dealing with the kidney

nocternal enuresis. bed wetting

oliguria. low rate of urine formation

osmotic diuresis. excretion of a large volume of high or normal osmolarity

P. Symbol for Plasma concentration

polyurea. high rate of urinne formation

RBF. Abbreviation for Renal Blood Flow rate

reabsorption. transport from the nephron tubular lumen into the peritubular capillary

renal. refers to kidney

RPF. Abbreviation for Renal Plasma Flow rate

secretion. transport from the peritubular capillary into the nephron tubular lumen

tubular transport maximum (Tm). the maximum rate at which a substance can be transported between the tubular lumen and the peritubular capillary

U. Symbol for Urine concentration

uremia. high concentration of urea in blood plasma

-uria. refers to urine composition or volume

urology. surgical specialty dealing with the urinary tract

V : Symbol for Urine formation rate (Volume/time)

water diuresis. excretion of a large volume of dilute urine