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Explain the Urea clearance test
A test of renal function based upon urea clearance. Urea is a waste product that is created by protein metabolism and excreted in the urine. The urea clearance test needs a blood sample to calculate the amount of urea in the bloodstream and two urine specimens, collected one hour apart, to calculate the amount of urea that is filtered, or cleared by the kidneys into the urine. The normal value of this test is 64-99 ml/min. The formula for urea clearance is as follow:
CONSTRUCTION STANDARDS SET BY BUREAU OF INDIAN STANDARDS : At the construction stage itself, the design of the laboratory buildings should be made in accordance with safety norms.
The active ingredient in Antabuse, a drug used for the treatment of chronic alcoholism, is tetraethylthiuram disulfide, C10H20N2S4 (fw = 296.54). The sulfur in a 0.4329 g. sample o
Explain Examination of Urine Examination of urine is done to detect the presence of any abnormal constituent(s) and hence can be used as an important screening test for identif
Define the functions of the Macrophages The macrophages: 1) phagocytose microorganisms and inert particles 2) secrete IL-1 (Interlukin I), TNF (tumor necrosis factor),
Acute and Chronic Effects : The effects of accidents due to chemicals are severe and immediate on the human body. These effects are called acute effects and can be traced without
Laboratory Safety Codes: BIS has prepared the following three codes (in the form of small books) regarding laboratory safety: i) Code of safety in microbiological laboratories
REQUIREMENTS 1. Stock register of a science laboratory 2. Loose paper sheets 3. Pen 4. Pencil 5. Rubber
DISPOSAL OP CARCASS : After the experiment with an animal is over, the dead animal, i.e. carcass should not be left in the laboratory. The dead animals start decaying and putr
What is a chemical formula? A chemical formula is a way of representing molecules without drawing them. The chemical formula shows the ratio of atoms that form any given molecu
Rejection of Heliocentrism: This happened in the year 1918 when the astronomer Harlow Shapley (1885-1972) first surveyed the size and shape of the Milky Way Galaxy. He sh
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