Mechanisms determining the ratio of conductivity clearance to urea clearance
نویسندگان
چکیده
منابع مشابه
Urea clearance tests.
This paper has its origin in work done in a prisoner of war hospital camp in Siam. Under the prevailing condition of protein-starvation there the Van Slyke formulae for calculating urea clearance as a percentage of normal were found to be completely misleading. The only literature then available was a handbook of laboratory methods giving the bare routine of the test without indicating the sour...
متن کاملThe artificial kidney and urea clearance.
A theoretical efficiency has been calculated from the known urea clearance of the artificial kidney, the assumed total body water of the patient, and the initial plasma urea. The efficiency of dialysis never significantly exceeded the calculated figure. In some patients with trauma or glomerulonephritis the efficiency was very poor whereas in patients with renal failure complicating pregnancy t...
متن کاملThe urea clearance test in children.
The value of the urea clearance test in the estimation of renal function is now well established. It was thought advisable before using it as a routine at this hospital to check the normal response in children with that of the adult and to compare the results of the test with the one previously in use (McLean's urea concentration test). The increase in the minute volume of the urine as a result...
متن کاملRelationship of Formula Creatinine Clearance, Serum Creatinine and Blood Urea Nitrogen to 99mTc-MAG3 Clearance
Received 2/18/2002; revised 3/4/2002; accepted 3/8/2002. For correspondence or reprints contact: Nan-Tsing Chiu, M.D., Department of Nuclear Medicine, National Cheng Kung University Hospital, 138 Sheng-Li Road, Tainan 704, Taiwan. Tel: (886)6-2353535 ext. 2480, Fax: (886)6-2766609, E mail: [email protected] Background: We conducted this study to explore the correlation of formula creatini...
متن کاملNomograms for calculation of urea clearance.
Two nomograms are given for use in calculating standard, C3, or maximum, Cm, urea clearance. The first nomogram calculates the urine flow rate, f, from the urine collection time and volume data. With the second nomogram, values of f and urea nitrogen concentrations in blood serum (or plasma) and urine are used to calculate either C3 or Cm, according to the value of f. There is no intermediate c...
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ژورنال
عنوان ژورنال: Kidney International
سال: 2004
ISSN: 0085-2538
DOI: 10.1111/j.1523-1755.2004.00759.x