Notes

Passing Out after Blood is drawn:
1) Symptoms when blood is drawn: feeling dizzy, starting to sweat, look pale, temporary drop in heart rate or blood pressure, fainting.
2) Vasovagal syncope- happens when blood pressure and heart rate drop suddenly; Symptoms: people to faint, when blood is drawn from them, they give blood, seeing medical tools, or when they see blood.
3) Vasovagal syncope is a reflex reaction you have to something that is happening, but reflex is to strong, or happens at the wrong time. Your nervous system controls this. Reflexes balance the two things that the nervous system controls, one- is about physical workout, like running, the second- controls bodily functions, where one of the nerves is called the vagus nerve, which controls your heart beat and blood pressure. Finally, if the vagus nerve gets too active, that causes your heart beat and blood pressure to drop way too much, or way too fast, which then eventually leads to the person passing out, because there isn't enough blood to go to the brain.
4) Vasovagal syncope: Symptoms- You can tell if you have this, if before that, you feel sweaty palms, nausea, a warm feeling, pale, dizzy, lightheadedness, blurred vision. There might also be low iron in your blood
5) Vasovagal syncope: Treatment- get emergency medical care because serious or life- threatening situations can cause this to happen, and also get medical attention, if you have hit your head. Increase fluid intake, sometimes increasing how much salt you eat- under doctors supervision, exercises and physical activities, Avoid situations in which you feel like fainting, Counterpressure techniques (its like where you cross your legs, squeeze your muscles, or squeezing your fist), Shifting slowly into different positions, like standing or sitting, Medication, Education and counseling, and in very rare cases, pacemaker, which is a device that regulates the heart beat, if other treatments don't work.
6) Anxiety: This is another option that can cause fainting, if the person hyperventilates, and is stressed about something, they can get dizzy and faint.
7) A strong feeling of Pain: If someone reacts really strongly to the pain they are feeling, they might pass out.
8) Dehydration: If you are not drinking enough liquids, you can feel dizzy and faint.
9) Low blood sugar: If the person did not eat recently, then their blood sugar drops, and they could faint.
10) Treatment: During all of these, you should drink a lot of water, eat a steady meal, practice techniques to relax you, when taking blood lie down to help blood flow to your brain, tell the person taking your blood, that it is possible you could faint, after the blood is drawn, you could rest for a little bit, EAT and DRINK, if you faint, you could lie down, with your legs elevated above you, so blood can reach your brain easier, stand up slowly, and walk slowly, take your time. Tell a doctor, if you faint often.
Please check out this website, it has very interesting information about vasovagal syncope: https://my.clevelandclinic.org/health/symptoms/23325-vasovagal-syncope#care-and-treatment