MeSH definition : The urea concentration of the blood stated in terms of nitrogen content. Serum (plasma)
urea nitrogen is approximately 12% higher than blood urea nitrogen concentration because
of the greater protein content of red blood cells. Increases in blood or serum urea
nitrogen are referred to as azotemia and may have prerenal, renal, or postrenal causes.
(From Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984);
MeSH annotation : note category; no qualif; often correct for foreign azotemia; DF: note short X ref; note category; AZOTEMIA is available for the disease;
Wikipedia link : https://en.wikipedia.org/wiki/Azotemia;
The urea concentration of the blood stated in terms of nitrogen content. Serum (plasma)
urea nitrogen is approximately 12% higher than blood urea nitrogen concentration because
of the greater protein content of red blood cells. Increases in blood or serum urea
nitrogen are referred to as azotemia and may have prerenal, renal, or postrenal causes.
(From Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984)