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... 16.5 liters, or a bit over 4 gallons.

I got you beat. Last year I made my 80th donation, and was admitted into the ten gallon club. the Red Cross gave me a FREE T-SHIRT to prove it. Anyway, China has a big problem recruiting blood donors. There is a strong cultural taboo about losing blood. Even in America, where hospitals try to match patients with donors by ethnicity, there is a big shortage of Asian blood. My wife is Chinese, and she objected to me donating blood, insisting it would shorten my life, until I showed her that there was plenty of evidence that donating blood is good for you and may lengthen your life.

Ummm.... I work in a hospital and order blood fairly regularly for my patient population. There is no way to specify the "ethnicity" of blood. Blood is "typed" for major antigen (A,B,O) and "crossed" for minor antigen or factors (Rh, Duffy, Lewis, Kell, MNS, P, Hh, XK, Etc). Now, different "ethnicities" have different distributions of antigens which may make it more likely that someone of the same ethnicity matches, but no-one transfuses "ethnic-specific" blood.

And for the record the typical human has about 80 cc/kg of blood (e.g. the "mythical" 70 kg (154 lb) adult has about 5600mL (5.9qts ~1.5 gal) of blood).

Your contributions to this forum are moronic and you deserve every bit of down-modding that you get.

The Red Cross' blood service is a SEVERAL BILLION DOLLAR business. You don't know what you're talking about. Greedy pockets? Please. This is old and still true: http://www.bloodbook.com/part-4.html

Practically everything you've written here has been libelous and false.

Wouldn't it full of mature immune system cells known to harbor HIV anyway?

I think it's interesting that the cells themselves can hide in the progenitor cells, that's clever, but I wouldn't think transplants would be done from HIV carriers to healthy individuals even if the HIV blood levels were reduced to undetectable levels by medicines -and- the cells of the tissue themselves weren't known to carry the virus because the blood always could. I know similar precautions are taken with blood donations and cancer. Blood banks won't take blood from you if you've ever had a melanoma, even if it was caught early and burned off 20 years previously source. The chances that you have lingering cells with metastatic potential at that point has got to be far below the chances that you have independent cancer cells circulating. I'd also assume that due to immune system rejection, any cancer cells from another person aren't going to infect you unless you are a Tasmanian devil.

Better err on the safe side, it's not like it's as annoying as FAA regulations that are clearly crap.

Anyway, back on the point: I don't think they'd transplant any tissue from an HIV carrier to a healthy person even without the current finding.

Thats the first think i thought about as well. Here is a chart that shows some of them.

I've grouped your two posts together here for my reply.

This

I believe my father, who runs a blood bank.
A quick Google also reveals that red blood cells and platelets can also be frozen, as can cord blood.


and this

Also see: http://www.bloodbook.com/storage.html [bloodbook.com]

Please note my original wording "Blood does not freeze well". Not that you can't freeze it; although these frozen products are not used commonly and are not readily available.

However, even the process of storing blood cold causes it to lose some function. Cold stored red blood cells have a reduced ability to deliver oxygen to the tissues compared with normal blood.

There are also circumstances, particularly in trauma or after prolonged periods on cardiopulmonary bypass, when whole blood is used instead of fractionated packed cells because of the additional benefits of replacing the plasma components. In these circumstances blood banks will (at least in Australia) often get donors in to make fresh whole blood which is transfused quickly.

The benefits of fresh blood relate mainly to the rapid fall off in activity in clotting factors with traditional storage methods. It probably is less important due to the availability of factor 7 which I referred to in my earlier post. However, there are many factors in blood which the storage process affects, and there is still probably some benefit in this regard in cases of severe bleeding.

I'm not saying that frozen blood is impossible. But its not used around the world that much (to my knowledge) for pretty good reasons.

Michael

Also see: http://www.bloodbook.com/storage.html

According to BloodBook.com.

Federal regulations allow individuals to sell up to 60 liters a year (nearly 127 pints) of their own plasma - a maximum of two donations a week. That is twice the amount allowed by the next country, Canada. And it is four times the amount - 15 liters a year - recommended by the World Health Organization. (A liter is a little more than a quart.)

But even so it would be difficult to sell blood. They would want you to donate it.

So, inconclusion, go get a job you fat fuck and get off your 386 Linux computer that Richard Stallman gave you in exchange for tossing your salad.