how much blood do you need to do an ABO blood type test? and how long con the blood last in a syringe before you cant test it?
i'm doing blood testing in A&P lab on wednesday. i know my own blood type already and would like to check my husband and daughters.
thanks in advance!
2007-04-01 15:53:35 · 4 answers · asked by Bio-student Again(aka nursegirl) 4 in Science & Mathematics ➔ Medicine
i'll try the ice/baggy thing
and ABO blood typing is when you determine whether you are type A, type B, type AB, or Type O. it is important when giving or recieving a blood transfusion.
2007-04-01 16:18:53 · update #1
ok orinoco i know where you are going with that but it is nothing fishy. i know that i am O+, everyone else in my family is O as well, my husband has no idea what his blood type is(which baffles me) and for my own curiosity i would like to know my childerns and husbands blood type, i know that i could give blood for them if they ever needed it. rather than from a stranger.
we are doing blood typing in A&P lab, i just was unfamiliar with how much blood was used. i know we will not be drawing blood most likely a D stick
2007-04-01 17:04:52 · update #2
ABO blood type test can be done either by finger stick or withdrawing a blood sample. If by fingerstick, it needs a drop of blood or two directly onto the test slides. If blood sample is extracted through a syringe, it needs 3 ml of blood. Keeping the blood in a syringe usually ends up getting hemolyzed or clotted so most of the time it won't be kept long. If no other way, then after collecting the blood, keep a negative pressure in the syringe and refrigerate it or kept cooled. How long it would last is variable but won't stay long as you may expect. You may try to keep it in a plain tube, keep refrigerated and keep it in a cool place if taken out of ref. Be sure not to shake it and it could last for half day or more in a good condition. Proper blood collection also affect the blood sample.
2007-04-02 10:03:19 · answer #1 · answered by ♥ lani s 7 · 1⤊ 0⤋
The actual test is usually done with a drop or two of blood (fraction of a mL).
Doctors put the blood in a tube laced with EDTA to help preserve it. The specimen lasts for several hours that way. A specimen in a syringe would not be suitable as it would clot.
You will need to bring the blood tubes back if you wished to take your husband's blood and your daughter's blood at home.
Alternatively you could bring your husband and your daughter to the lab and have the blood taken there.
It is usual practice to collect somewhere between 4-7mL of blood for this type of test.
It can be done on less. In some cases, >10mL of blood is requested of us by the lab when the patient is known to have many antibodies and to be difficult to type and match, but this should not be a problem if you just want to know their blood group.
In biology/genetics in Uni we did it with a fingerprick sample and a couple of drops only.
(Todd - Warm up the blood - then cool it down? WTF?)
Have you discussed the whole thing with your husband +/- daughter(s)? I'm sure it will be important for them to know why you are keen on this blood test. I'm sure your husband in particular may be interested.
2007-04-01 23:36:04 · answer #2 · answered by Orinoco 7 · 2⤊ 0⤋
I'm not sure what an ABO blood type test is... but if it's what we did in my biology class, all we needed was a few a few drops from a lanclet hole.
2007-04-01 23:02:45 · answer #3 · answered by jaaaaaaaa 2 · 0⤊ 0⤋
I don't believe it takes a lot. but not sure. I can tell you that if u put it in a zip lock bag with ice water it is good to go for a while. Just remember to warm it up by rollingthe syringe in ur hands
2007-04-01 23:04:25 · answer #4 · answered by Todd V 2 · 0⤊ 0⤋