Details
Back to Test DirectoryCPT Code
84540
Specimen Type
Container Type
Stability
Room Temperature, 2 days; 2-8° C, 7 days; – 20°C, 1 month
Handling Instructions
Collect in Sterile Specimen Container, No Preservatives
Clinical Notes
Measurements obtained by this test are used in the diagnosis of certain renal and metabolic diseases. The determination of serum urea nitrogen is a widely used test for the evaluation of kidney function. The test is frequently requested in conjunction with the serum creatinine test for the differential diagnosis of prerenal (cardiac decompensation, water depletion, increased protein catabolism), renal (glomerulonephritis, chronic nephritis, polycystic kidney, nephrosclerosis, tubular necrosis), and postrenal (obstructions of the urinary tract) hyperuremia.
Performing Lab
6210 N Belt Line Rd
#170
Irving, TX 75063
Principle Laboratory - Houston
16840 Buccaneer Ln
Suite 281
Houston, TX 77058