The determination of serum BUN currently is the most widely used screening test for the evaluation of kidney function. In general, normal BUN levels fall in the. Height is below the 3rd percentile, and growth velocity is 6 cm/year before age 4 years, 5 cm/year from age 4 to 8 years, and 4 cm/year before puberty. It’s also important to note that each laboratory has different ranges for what’s normal. Growth hormone deficiency itself typically manifests as growth failure, sometimes along with delay in tooth development. See document below for Reference Ranges in Children (ages 0-18 years). Increased blood urea nitrogen (BUN) may be due to prerenal causes (cardiac decompensation, water depletion due to decreased intake and excessive loss, increased protein catabolism, and high protein diet), renal causes (acute glomerulonephritis, chronic nephritis, polycystic kidney disease, nephrosclerosis, and tubular necrosis), and postrenal causes (eg, all types of obstruction of the urinary tract, such as stones, enlarged prostate gland, tumors). Normal BUN values tend to vary depending on gender and age. This is the most important catabolic pathway for eliminating excess nitrogen in the human body. The ammonia formed in this process is synthesized to urea in the liver.

In protein catabolism, the proteins are broken down to amino acids and deaminated. Tests of blood glucose levels are performed to determine if an individuals blood glucose is in normal range. Urea is the final degradation product of protein and amino acid metabolism. Conclusion: Our study provides new pediatric reference intervals (2.5th-97.5th percentiles) of 60-99 mg/dL for serum glucose concentrations, 8-38 IU/L for ALT. Low BUN levels are uncommon and are usually not.

Bun normal range child