Tuesday, 5 February 2008

Eating before a blood test

1) in practice all analyses of the blood make on an empty stomach, i.e., must pass not less than 8 is hour from the period of previous receptivity of food. This is important, since the consumption of food can influence the result of a study, for example, after food rises the level of blood sugar, a quantity of leukocytes it is other. 2) some characteristics of the blood are subjected also to daily variations; therefore the morning is ideal time for the analyses 3) for the babies of the first year of life requirements are less strict, by breast milk it is possible to feed them in the usual regime 4) for the children it is older than the year 1-2 days prior to the inspection to desirably exclude the heavy food from the ration: fatty and fried. Before the analysis it does not be worthwhile to also give to drink child by juices, tea or coffee, especially with the sugar - this is also food; therefore it is necessary to suffer. It is possible to drink water. When breakfast before the analysis let us assume it can consist of the nesladkogo tea, the nesladkoy porridge without oil and the milk, the apple. 5) in order to exclude other factors, capable of influencing the results of the studies: physical stress and fatigue after run, lift along the stairs and emotional excitation, before the procedure it follows to give to child to be quieted and to rest 10-15 minutes in the receiving. 6) the method of some medicines (for example, antibacterial and chemotheraputic) can substantially influence the results of analyses, even during 10-14 days after the cancellation of method. If child passes treatment by such preparations, you will compulsorily warn doctor, who assigns to you analyses. Possibly, it is necessary to transfer them. The blood also should not be passed soon after roentgenological inspection, since the action of X-rays can distort data of analysis. 7) erythrocytes - the elements of the blood, which contain hemoglobin, transport oxygen and carbon dioxide. Hemoglobin - substance of red color, which pererenosit oxygen. The reduction of the content of hemoglobin in the blood, called anemia, can indicate the different kind of hemorrhage (including internal) or the increased level of the destruction of erythrocytes. Leukocytes - elements of the blood, which correspond for recognition and neutralization of foreign components, the immune protection of organism from the viruses and the bacteria, the elimination of the dying off cells of their own organism. Thrombocytes - elements of the blood, critical for its coagulation. Normal values for the level of the thrombocytes: 1500- 400 tys/mkl. Increase and reduction in the quantity of thrombocytes - this is occasion for the further examination of the system of coagulation of the blood. SOE - the settling velocity of erythrocytes - test is based on the ability of the erythrocytes (into the blood with this analysis are added the special substances, which impede its coagulation) to settle under the action of gravitational force. Change SOE can serve as the indirect sign of current inflammatory or other pathologic process. In newly born SOE comprises 2mm/ h, in breast 4-8, in more elder 4-10, in adult 5-8 mm h.

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