To drink or not to drink ...
The answer to the question depends on what kind of analysis you are going to be carrying out, since some requirements for blood donation are considered the same in most laboratory studies, and in some cases, options are possible, it depends on the specific case. So, the "hungry stomach" is taking blood for biochemical analysis, for HIV and AIDS, for hormonal reactions and some others. At this time, you can not drink carbonated drinks, which contain sugar or its substitute, tea or coffee drinks. But on the question of whether it is possible to drink water before donating blood in case you need to take the above tests, the experts respond positively. Unacceptable drinking water does not affect the results of such studies.
What is not recommended to do on the eve of blood donation?
When is the analysis taken from the vein?
Tips for taking analysis from the vein are somewhat more complex than from the finger. But to observe them, of course, is necessary, because only then can you count on a truthful outcome. On the eve of collecting blood it is desirable to eliminate from the daily routine of loading, sports training, to avoid a surge of emotions and nervous tension. And specifically on the eve of the very collection of blood you just have to sit and achieve a state of rest. From this, breathing will return to normal and will not affect the result. If a person who is going to donate blood is treated with medicines, then before the analysis he is obliged to tell the doctor about everything. Because when mixing many drugs with blood particles in the human body, a reaction occurs, and this can distort the results of the study. In this case, the blood from the vein must be taken either before the start of therapy, or after its termination.
What to do before giving blood: requirements when passing the most common tests
If you donate blood for infections, be prepared for the fact that you may need to repeat this study to recheck the result. That is, after a while you may be asked to undergo an analysis again. If you still have doubts about whether you can drink water before donating blood, then it is better to clarify this by your local doctor who writes directions for tests, or in the laboratory where you are going to undergo the examination. And in the event that there is no way to clarify this point, it is worth remembering that before donating blood you can not eat for 8 hours. A simple water, if possible, use at a minimum.