Urea Nitrogen (BUN) Reagent Set - Pointe Scientific, Inc.

Urea Nitrogen (BUN)
Reagent Set
NOTE:
To obtain results in SI units multiply by 10 to convert dl to liters
and divide by 28, the molecular weight of nitrogen.
Example: 17 mg/dl x 10/28 = 6.06 mmol/L.
To convert mg/dl Urea Nitrogen to mmol Urea/L, multiply the mg/dl Urea
Nitrogen value by 0.357.
To convert mg/dl Urea Nitrogen to mg/dl Urea, multiply the mg/dl Urea
Nitrogen value by 2.14.
Quality Control
Serum controls with known normal and abnormal values should be run
routinely to monitor the validity of the reaction.
Expected Values
7-18 mg/dl 6
It is strongly recommended that each laboratory establish its own reference
range.
Performance
1. Linearity: 80 mg/dl
2. Comparison: A study performed using another enzymatic procedure
yielded a correlation coefficient of 0.999 with a regression equation of
y = 0.98 + 0.64.
3. Precision:
Within Run
Run to Run
Mean S.D. C.V.% Mean S.D. C.V.%
14 0.5 3.6 14 0.6 4.3
46 0.8 1.7 49 1.8 3.7
References
1. Fearon, W.R., Biochem J. 331:902 (1939).
2. Marshall, E.K., Jr., J. Biol. Chem. 15:487 (1913).
3. Gentzkow, C.J., J. Biol. Chem. 143:531 (1952).
4. Fawcett, J.K., Scott, J.E., J. Clin. Path. 13:156 (1960).
5. Talke, H., Schubert, G.E., Klin. Wschr. 43:174 (1965).
6. Tietz, N.W., Fundamentals of Clinical Chemistry, Philadelphia W.B.
Saunders, p991 (1976).
7. Young, D.S., et al, Clin. Chem. 21:1D (1975).
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Rev. 12/09 P803-B7550-01