I’ll post a full team set of decks here later. Posts that are simply flaming or belittling other genre games will be removed. A bad attitude is not a ban-worthy reason, but continuously insulting others without contributing to the topic is.Īny racist, homophobic, sexist or otherwise hateful speech or material will be removed. Don't post comments directly insulting another redditor. No excessive trolling! Keep your comments related to the submission you're commenting on. Please report to the moderators if you see anything. No posts about hacking, cheating, or that breaks the game's terms of use. This is to help combat low effort youtube, or other spam.īe mature in your posts and comments. You must be an active member of the community (1 to 4 Reddiquette ratio, aka actively participating in threads other than your own), and self-promotions are limited to one per 48 hours. Self promotion should be limited and tasteful. The kidneys also play their part in controlling blood volume by regulating the amount of sodium and water lost in urine.Announcments | r/b4b Discord | TRS Discord | B4B Community Discord AnnouncementsĬontent must be directly related to Back4Blood or this subreddit. It's important to replace fluids after you've donated, to help bring your blood volume levels back to normal. That's why it is important for you to drink plenty of water before you donate and immediately after you've donated. So, although you donate less than a pint of blood at a time, almost half of this is water. About 55% of blood is comprised of plasma, of which 90% is water. Drink upīlood volume makes up approximately 8% of your body weight. This is why we ask donors to wait for a minimum of 12 weeks between donations (12 weeks for men and 16 weeks for women) to ensure that we don’t risk lowering your haemoglobin levels over the long term. If too much iron is taken out of storage and not replaced through dietary sources, iron stores may become depleted and haemoglobin levels fall.Īfter a donation, most people's haemoglobin levels are back to normal after 6 to 12 weeks. The proteins are found in the liver, bone marrow, spleen and muscles. The body stores iron in the form of 2 proteins – ferritin (in men it accounts for about 70% of stored iron, in women 80%) and haemosiderin. We make sure that your haemoglobin level is above 125g/l for women and 135g/l for men. This is because any iron deficiency can result in reduced haemoglobin levels, and eventually, if not treated, in iron deficiency anaemia. Your haemoglobin levelsīefore every blood donation we always test your haemoglobin levels. Men normally have more iron stores than women. To compensate, iron is mobilised from the body's iron stores, and the body also increases the amount of iron it absorbs from food and drink. Haemoglobin contains iron, and some is lost with each blood donation. There's an important link between your red cells and your health because it's these cells, or rather the red-coloured haemoglobin they contain, that take oxygen around your body. You can schedule your appointments the right distance apart using our online appointment system. So why wait? Unlike white cells and platelets, it takes several weeks for all the red cells to be replaced. Male donors need to wait a minimum of 12 weeks between whole blood donations and female donors 16 weeks. What about your white cells and platelets? A number of other messenger proteins also stimulate the production of these cells in the bone marrow, and over the next few days levels return to normal. Your body makes about 2 million new red cells every second, so it only takes a number of weeks to build up stores of them again. The erythropoietin sends a message to the stem cells telling more of them to develop into red blood cells, rather than white cells or platelets. The bone marrow produces stem cells, the building blocks that the body uses to make the different blood cells – red cells, white cells and platelets.
This passes through the bloodstream until it reaches the bone marrow (the soft fatty tissue inside the bone cavities). Special cells in the kidneys, called peritubular cells, sense that the level of oxygen in the blood has decreased (due to the loss of red cells) and start secreting a protein called erythropoietin. When you give blood you lose red cells and the body needs to make more to replace them.
Millions of them are being made and dying every second. Making a blood donation uses about 1 pint, after which your body has an amazing capacity to replace all the cells and fluids that have been lost. The average adult has around 10 pints of blood (roughly 8% of your body weight).
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