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The volume of the blood sample collection is very important in experimental animals. All nonterminal blood collection without replacement of fluids is limited up to 10% of total circulating blood volume in healthy, normal, adult animals on a single occasion and collection may be repeated after three to four weeks.
Antivenom is traditionally made by collecting venom from the relevant animal and injecting small amounts of it into a domestic animal. [2] The antibodies that form are then collected from the domestic animal's blood and purified. [2] Versions are available for spider bites, snake bites, fish stings, and scorpion stings. [3]
A blood test is a laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a hypodermic needle, or via fingerprick. Multiple tests for specific blood components, such as a glucose test or a cholesterol test , are often grouped together into one test panel called a blood panel or blood work .
Blood samples should be allowed time to form a clot at room temperature for 30–60 min. [6] CDC recommends a range of time to allow clot formation that was reasonably consistent, from a minimum of 30 min to 60 min maximum.
One article examining the ethics of xenotransfusion notes that only 10% of the animal's blood volume is used each time; therefore, it may be considered ethically acceptable to raise pigs for periodical blood collection as it does not damage the health of the animal. Likewise, using pRBCs on humans would not cause severe harm to human health. [2]
A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacutainer tubes may contain additives designed to stabilize and preserve the specimen prior to analytical testing.
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Variety of microbiological samples. A laboratory specimen is sometimes a biological specimen of a medical patient's tissue, fluids, or other samples used for laboratory analysis to assist in differential diagnosis or staging of a disease process. These specimens are often the most reliable method of diagnosis, depending on the ailment.