Does dehydration make it hard to draw blood?

Drinking water before you get your blood drawn is equally important, too. If you walk into a blood bank without drinking lots of water before, everyone involved will have a harder time. The more water you drink, the plumper your veins are. This makes it easier for the phlebotomist to find your vein.

phlebotomyusa.com - Make Your Phlebotomist (and Yourself) Happy by Drinking Plenty of Water

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Make Your Phlebotomist (and Yourself) Happy by Drinking Plenty of Water

Getting blood drawn is in important procedure, whether it is for blood work or a blood donation. Phlebotomy classes teach students the techniques behind drawing blood so that each blood draw is successful. While classes in focus on what they can do to make your blood draw more comfortable, there are a few things you should do to make your life, as well as the phlebotomist’s, easier. First, most blood work procedures will require that you abstain from eating for about twelve hours before you get your blood drawn. It is important that you do this. Classes can teach how to draw blood, but they can’t change the fact that food can alter a blood test’s results. Drinking water before you get your blood drawn is equally important, too. If you walk into a blood bank without drinking lots of water before, everyone involved will have a harder time. The more water you drink, the plumper your veins are. This makes it easier for the phlebotomist to find your vein. Phlebotomy classes teach students how to draw blood from veins that aren’t as plump, but more water means less time donating. Why is hydration so important when donating blood? Maintaining hydration is critical not only for your physical well-being day to day, but also for your mental wellness too. And as long as you’re staying hydrated, why not ditch the soda and other caffeinated beverages? They contain no nutritional value, and can dehydrate you. According to an article from U.S. News’ Health and Wellness section, a good rule of thumb if you aren’t sure how much water you should drink each day, is as follows: The basic equation for determining this is by dividing your body weight in half. So, if you weigh 200 pounds, you would need 100 ounces of water per day, if you’re not doing anything strenuous. If you’re working out, hiking, at a high altitude, or outdoors a great deal, you’re going to need to add to those 100 ounces. Another reason dehydration is bad for the blood donation experience, as that it will thicken your blood and lower your blood pressure. Phlebotomy classes from know that lower blood pressure is often better, but this isn’t always the case. If your blood pressure is lower, you have a higher chance of fainting during your procedure, which can make it harder for your body to recover from the procedure. When your blood thickens, it’s harder for the phlebotomy specialist to puncture the vein and draw blood. It’s important to note, though, that some procedures require that you don’t drink water before getting blood drawn. This is generally the case for blood tests and surgeries. If your phlebotomy specialist says it is OK to drink water before getting blood drawn, try to drink the recommended daily amount of water, which is 64 ounces. Before you donate, drink a glass of water that’s about 16 ounces. Although getting your blood drawn can be stressful, it doesn’t have to be. First, ensure you drink enough water before your procedure, if you’re allowed to do so, in order to reduce the difficulty of blood drawing. Next, try to take deep breaths during your donation and feel free to speak with the phlebotomist before, during, and after your procedure about any concerns you may have. A couple more tips to help you have a better experience donating blood: Avoid alcohol of any type for a full 24 hours before your donation

Get plenty of sleep the night before

Afterward:

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What not to do after blood test?

Recommendations After Blood Collection Avoid tight or restrictive clothing on the arm. If bleeding occurs, apply firm pressure with your fingers directly over the needle site. Avoid strenuous use of the arm eg sports or heavy lifting. More items...

clinicallabs.com.au - After Care Instructions - Australian Clinical Labs

Recommendations After Blood Collection

To reduce the likelihood of side effects such as bleeding, discomfort, swelling or bruising, please follow these simple precautions.

Leave the dressing strip in place for 30 minutes to an hour.

For the Rest of the Day

Avoid tight or restrictive clothing on the arm

If bleeding occurs, apply firm pressure with your fingers directly over the needle site

Avoid strenuous use of the arm eg sports or heavy lifting

If you have discomfort or swelling of the arm, elevate your arm and place ice over the site for 10 minutes. Rest the arm as much as possible.

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