Due to illness, I often have to undergo examinations and give blood. And sometimes my blood pressure drops significantly or I feel dizzy if I don’t drink tea in the morning. Can I drink it before giving blood?
“No. For most blood tests, strict fasting (8-12 hours) is required,” warns physician of the first qualification category Violetta SAVKOVA. “This means that you cannot eat, drink beverages (except water), nor smoke or chew gum, otherwise the test results may be distorted.
One of the common causes of low blood pressure and dizziness is a lack of fluid in the body (dehydration). Moreover, dehydration can make it difficult to draw blood, as the veins become less filled.
Before your visit to the laboratory, drink 1-2 glasses of still water – this is recommended before most tests. Bring something to snack on and drink immediately after the blood draw.”
