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In the clinic , after the strong-arm examination if the Dr. suspects a disease in an person or else to get to know the beginning suit of any exceptional condition , the doctor advices roue tests . Blood tryout are the most frequently performed investigations.1In the pathological laboratory , the technicians take the blood from a vein in the arm using a phonograph needle .
For some blood test , just one tool in the fingerbreadth will do.2Usually rakehell run are done in the break of day before guide the food . The patient must be in fasting at least for eight to twelve hours . fast of more than twelve hours can thin out the reliability on the final result .
List of Foods to Avoid Eating before a Blood Test
The next list of food should be avoided before a blood test :
In case if the person is on medicine for some illness , it is leave to physician ’s decision to advice the person whether to debar the medicine 12 hours prior to blood run or grant taking . Since the Dr. knows the form and dosage of medicine , he / she can interpret the outcome of blood run even if the patient has accept the medicine before going to blood test .
Artificial refined sugar are completely to be stopped because they have adverse effect on the blood test for mensurate glucose level .
Foods rich in blubber should not be eaten at least 24 hours prior to blood test as they are slowly digested . It is also found that these foods have their impact on line of descent test even if they are take 12 minute before and the patient is fasting after that .
Smokingalso bear upon the answer of the line trial run . Hence , smoking is also prohibited , if he / she is told to have a blood mental testing . Even exercise fastens the metabolic process and changes the tightness of different substances like glucose , fat , etc . Therefore , exercises are not to be perform before parentage test .
Blood Tests Which Require Fasting or Restriction of Food
Some blood test require fasting . It means that the patient who are undergoing blood test are not allow to deplete anything or pledge any other liquid than water . All blood test do not ask fasting . The test during which fasting is needed are listed here :
How is Blood Test Done?
The worker in the laboratory hoard the parentage sampling from the patient with the help of a needle or digit prick . Blood from the finger is collected over a slide or if it is drawn from the arm vein , is collected in the syringe and instantly transferred to several apparatus to conduct dissimilar tests . Drawing the blood from the vein does not ordinarily injure the affected role but cause a very small discomfort . In most of the sheath , blood draftsmanship does not cause any severe reaction . Before the procedure , the technicians have to tax the affected role whether they are :
In case , if the patients are flighty or afraid of pricking , the attention of them is distract by talking with them . The technician himself or his / her supporter can do this problem . Even the people who keep company the patients sometimes are allowed to eviscerate the attention of them in casing the patient are young youngster .
After the operation , the science lab worker applies pressure on the spot of prick . Sometimes the patient is told to do this . A small bandage or a sparking plug of cotton is keep on the place to avoid intumescency or to kibosh bleed . Depending upon the tryout suggested by the doctor , the professionals conduct the various tests . Hence the sentence rent for the report can not be same for all kinds of descent exam . subroutine of taking the blood from patients ’ body would take usually less than 3 minutes . Results can be expected as early as few minutes or would take a few hour to even a few day .
What is the Use of Blood Test?
There are a number of uses of doing blood test . Though blood line test alone can not help a Doctor of the Church to name many disease it is used as a first step of diagnosis . The other important uses are as succeed :
Complication of Blood Test
Usually there would not be any complications and if present are negligible . Commonly anticipate risks are a small bruising or swell at the land site of prick , phlebotomize to a very little extent and a inadequate time discomfort .
Results of a Blood Test
The results of the test are usually state in numeric values . They suggest the presence of any disease or show any kind of unwanted depositions , excretory substances in the line . Here are the major blood tests to be done to notice the malady .
CBC ( Complete origin count ) which involves the measurement of RBC , WBC , thrombocyte , intend corpuscular volume , haemoglobin , haematocrit
Lipoprotein which include total cholesterol storey , HDL and LDL cholesterol levels
rake glucose level .
Conclusion
today most of the rip test do not require any restriction of normal diet except in some particular tests like testing for descent glucose or fatness . In these , strict avoidance of boodle and fat is required . Other than specific tryout like this , normally fasting is not required for many tests . Alcohol and smoking for any instance is prohibited . Overlooking the guideline given by the health professional lead changes in the results which intern guides to improper diagnosis and wrong medication .
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