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on the topic of What should be the blood test fasting period? Why fasting is necessary before a blood test? Find answers to all these questions and more in this article. Read on, to know the importance of fasting before blood test and why the fasting period for blood test varies from patient to patient. A blood test is usually performed after an overnight fast. To check the blood components, your doctor would ask you to come in the morning, the next day, after fasting for at least eight hours overnight and then he would draw the blood. But this may not be the case every time, since fasting is not necessary before all blood tests. For example, a blood test for pregnancy does not require fasting. Blood tests, performed mainly to measure blood sugar and lipids, require fasting before the test. Fasting before blood tests is necessary if you want accurate results. The recommended fasting period for blood test is of about 8-12 hours. You should had anti-religiously follow the fasting instructions given by your doctor.Read more at Buzzle: Tagged Under: BloRead more at Buzzle: Platelets or Thrombocytes are tiny cells formed in the bone marrow. They are necessary for blood clotting. Their number is 400,000 per cubic millimeter. The plasma is the fluid portion before clotting has occurred. The serum is the fluid portion of blood remaining after the coagulation process is completed. The body contains about five liters of blood kept at a constant temperature of 37 * c. Blood consists of three different types of cell floating in a liquid called plasma. The blood cells are known as red cells, white cells and platelets. Red cells and platelets are unique among body cells in having no nucleus. Blood cells are so small that one cubic millimeter of blood (the size of a pin head) contains about five million red cells, white cells and 7,000 250,000 platelets. The red blood cells contain a pigment called hemoglobin, which gives the blood its red color. The main function of red cells is to carry oxygen to the body cells. For its journey from the lungs to the body cells, oxygen combines with hemoglobin of the red cells. It is then released from the body when the hemoglobin cells are reached. Some people do not have enough hemoglobin in their red cells and are consequently short of oxygen. This condition is called anemia and such people tire easily, become breathless on exertion and have a pale complexion. They need special care during general anesthesia. The white blood cells defend the body against disease. They do this by attacking germs and repairing damage.The function of platelets is to stop bleeding. They do this in two ways: by blocking the cut blood vessels; and by are substances, which help the blood to clot.Words:1. contain-contain2. plasma-plasma3. microscopical microscopy4. element-element5. erythrocyte-erythrocytes6. leucocyte-leukocyte7. thrombocyte-platelet8. bone marrow-bone marrow9. transport-transport, wrap10. convert-convert, convert11. carry-carry12. arrive to arrive13. expel-displace,14. catabolism-catabolism15. hemoglobin (haemoglobin)-hemoglobin16. agranulocyte-agranulocit17. cytoplasm-cytoplasm18. granulocyte-granulocite19. eosinophil-iozofil20. basophil-azofil21. neutrophil-neutrophils22. node-node 23. spleen-spleen24. the lymphocyte-a lymphocyte25. monocyte-macrophage26. platelet-platelet27. tiny-tiny28. blood-clotting blood coagulation29. to occur-happen, happen30. remain-remain31. coagulation-flocculation32. complete-check Ex. 1 Find English equivalents. Find English equivalents.Microscopic cellular elements in every cubic millimetre, through20:00:56 the bloodstream throughout the body, the process of turning food into energy, output, product waste, extrude, several kinds, lymph nodes, the tiny cells, blood coagulation, completeEx. 2 Find Russian equivalents. Find Russian equivalents.To call, to be found, bone marrow, to be used to convert, iron, to be expelled, spleen, a fluid portion, coagulation process, three types of granulocytes, tiny cells, blood clotting, the main function, five liters of blood.Ex. 3 Answer the questions. Answer the questions ...1. What does blood contain?2. How many erythrocytes can be found in each cubic millimeter?3. Where are these cells made?4. What is their function?5. What role does hemoglobin play?6. What are the types of leucocytes?7. Where are agranulocytes mass-produced?8. What types of granulocytes do you know?9. What organ forms thrombocytes?10. How many platelets are there in one cubic millimeter?11. What is the difference between the plasma and serum?
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