Urea Nitrogen (BUN) Reagent Set - Pointe Scientific, Inc.
Urea Nitrogen (BUN) Reagent Set - Pointe Scientific, Inc.
Urea Nitrogen (BUN) Reagent Set - Pointe Scientific, Inc.
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<strong>Urea</strong> <strong>Nitrogen</strong> (<strong>BUN</strong>)<br />
<strong>Reagent</strong> <strong>Set</strong><br />
NOTE:<br />
To obtain results in SI units multiply by 10 to convert dl to liters<br />
and divide by 28, the molecular weight of nitrogen.<br />
Example: 17 mg/dl x 10/28 = 6.06 mmol/L.<br />
To convert mg/dl <strong>Urea</strong> <strong>Nitrogen</strong> to mmol <strong>Urea</strong>/L, multiply the mg/dl <strong>Urea</strong><br />
<strong>Nitrogen</strong> value by 0.357.<br />
To convert mg/dl <strong>Urea</strong> <strong>Nitrogen</strong> to mg/dl <strong>Urea</strong>, multiply the mg/dl <strong>Urea</strong><br />
<strong>Nitrogen</strong> value by 2.14.<br />
Quality Control<br />
Serum controls with known normal and abnormal values should be run<br />
routinely to monitor the validity of the reaction.<br />
Expected Values<br />
7-18 mg/dl 6<br />
It is strongly recommended that each laboratory establish its own reference<br />
range.<br />
Performance<br />
1. Linearity: 80 mg/dl<br />
2. Comparison: A study performed using another enzymatic procedure<br />
yielded a correlation coefficient of 0.999 with a regression equation of<br />
y = 0.98 + 0.64.<br />
3. Precision:<br />
Within Run<br />
Run to Run<br />
Mean S.D. C.V.% Mean S.D. C.V.%<br />
14 0.5 3.6 14 0.6 4.3<br />
46 0.8 1.7 49 1.8 3.7<br />
References<br />
1. Fearon, W.R., Biochem J. 331:902 (1939).<br />
2. Marshall, E.K., Jr., J. Biol. Chem. 15:487 (1913).<br />
3. Gentzkow, C.J., J. Biol. Chem. 143:531 (1952).<br />
4. Fawcett, J.K., Scott, J.E., J. Clin. Path. 13:156 (1960).<br />
5. Talke, H., Schubert, G.E., Klin. Wschr. 43:174 (1965).<br />
6. Tietz, N.W., Fundamentals of Clinical Chemistry, Philadelphia W.B.<br />
Saunders, p991 (1976).<br />
7. Young, D.S., et al, Clin. Chem. 21:1D (1975).<br />
Manufactured by <strong>Pointe</strong> <strong>Scientific</strong>, <strong>Inc</strong>.<br />
5449 Research Drive, Canton, MI 48188<br />
European Authorized Representative:<br />
Obelis s.a.<br />
Boulevard Général Wahis 53<br />
1030 Brussels, BELGIUM<br />
Tel: (32)2.732.59.54 Fax:(32)2.732.60.03 email: mail@obelis.net<br />
Rev. 12/09 P803-B7550-01