Why can’t a single blood test show you all the information you need instead of having to take multiple tests for different markers?
In: Biology
Oh oh I’m a phlebotomist and I’m so ready to go!
There are two reasons!
1) what is being tested? Sure we say it’s a blood test but there’s a lot in blood. There’s the cells, antibodies, serum, clotting factors, just a ton of different things, and each tube in a blood draw has different chemicals to make one of those accessible to be analysed
2) you need quantity! It’s unfortunate but we get more reliable results the more blood we get. So sometimes we need multiple tubes for these tests
Edit: words
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