Why Do I Get Dizzy After Giving Blood Some donors deal with uncomfortable symptoms like feeling dizzy lightheaded or nauseous These symptoms are often caused by a sudden drop in blood pressure and heart rate known as a vasovagal reaction
If your vagus nerve becomes too active it can cause your heart rate and blood pressure to drop too much or too fast or both If your blood pressure drops too much this As many donors can tell you the most common side effect of blood donation is feeling more tired following donation This is particularly true of whole blood and double red blood cell donations as they result in temporarily
Why Do I Get Dizzy After Giving Blood
Why Do I Get Dizzy After Giving Blood
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Vasovagal syncope is when your nervous system triggers a sudden drop in heart rate and blood pressure causing you to faint Many people experience vasovagal syncope when they donate blood Even though it s If you feel faint after leaving the donation centre light headed dizzy shaky hot or nauseous lie down and raise your legs if possible Make sure you tell someone that you are feeling
Information for blood donors and what to do if you feel faint after giving blood Fainting or feeling faint Why do some people feel faint At times your blood pressure can drop or your heart rate can slow down suddenly and sometimes your body reacts to that You might feel faint nauseous or light headed or in
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Occasionally a donor feels sick or dizzy after giving blood and on rare occasions they may actually faint This leaflet tells you what to do if you feel faint while giving blood and Feeling unwell after giving blood If you feel faint light headed or dizzy hot sweating trembling shaky or nauseous lie down immediately rest until you feel better and drink plenty
If you experience dizziness or lightheadedness stop what you re doing and sit down or lie down until you feel better avoid performing any activity where fainting may lead to injury for at least Fainting or a feeling of faintness or dizziness can be caused by a drop in blood pressure Always make sure you are healthy rested and have eaten before you give blood Remember
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https://www.redcrossblood.org › local-…
Some donors deal with uncomfortable symptoms like feeling dizzy lightheaded or nauseous These symptoms are often caused by a sudden drop in blood pressure and heart rate known as a vasovagal reaction
https://my.clevelandclinic.org › health › symptoms
If your vagus nerve becomes too active it can cause your heart rate and blood pressure to drop too much or too fast or both If your blood pressure drops too much this
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Why Do I Get Dizzy After Giving Blood - Background Whole blood donors may experience post donation symptoms such as fatigue dizziness or headache after blood donation which could influence donor retention We
