Hospitalization,Blood,Samples, health Hospitalization - Blood Samples
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Complete Blood Count. When a CBC is done, the technicianscalculate the number of red blood cells per cubic milliliter of blood.They also look at the size and shape of the cells, the proportion ofred cells to the total amount of blood 9the hematocrit), and the amountof hemoglobin (protein in the red cells that carries oxygen to thetissues) in the samples. A low red blood cell count is called anemia.If you are anemic, your body cells may not receive an adequate supplyof oxygen. Common causes of anemia are loss of blood or lack of iron inthe diet, but it may also be caused by a malfunction of the bone marrowthat produces the cells or an increased rate of destruction of the redcells. These normally survive for about four months before being brokendown.The technicians also look at the white cells. Although there isonly one variety of red blood cells, there are several different typesof white blood cells. They are one of the main body defenses againstinfection and disease. An increase in the number of normal white cellsis often seen if the body is fighting an infection such as appendicitisor pneumonia. Although a normal white blood count (WBC) would notexclude the condition, it would make it less likely. An excessivenumber of abnormal white cells may indicate leukemia.The technicians also investigate the blood's ability to clot. Ifthere is a break in a blood vessel wall, it is plugged by smallcomponents in the blood known as platelets, which release a chemicaland start the process of clotting. A platelet count is part of theautomated CBC now used universally.Continuous Flow Analysis. Another test that requires a bloodsample is run on a machine called a continuous flow analyzer. Withbarely half an ounce of blood, the technicians can run 12 to 20different tests at appreciably less cost than if the various chemicaltests were ordered individually. Several body functions are screened,and if a result is abnormal, it may provide a useful clue to somedisorder or condition. Sometimes, the routine screening picks up anelevation of blood sugar long before any symptoms of diabetes havedeveloped. Although no treatment is needed, the patient can be advisedto alter his or her diet.Blood Clotting Tests. In addition to the many blood tests usedto help in diagnosis, there are other tests which are used to gauge theseverity of a disease or the effectiveness of treatment. For instance,the victim of a heart attack has daily blood tests run to measure thelevel of chemicals released from damaged or dead heart cells. The moreextensive the damage, the higher the proportion of chemicals in thebloodstream.Some conditions, for instance thrombophlebitis, are treated withagents to slow down the rate of clotting. Tests are run daily whilemedication is given to ensure that the interference with the clottingis not too great.Frequent drawing of blood can be tedious for the patient. But itmakes everything more interesting if you ask the technician what thetests are for. The technician may welcome the chance to explain.Remember, he or she cannot tell you why a test has been ordered or talkabout the result. This is the job of your physician. Article Tags: Blood Cells, White Cells
Hospitalization,Blood,Samples,