When you have a blood test before an operation, what are they testing for?

Question

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what about HIV or Hepatitis, etc. do they test for that in a hospital blood test?

Answer 1

The blood tests before surgery are done so the surgeons know if the person is fit for surgery. The range of tests are mainly full blood count which checks the persons haemaglobin, platelet count and white cell count. This test is to see if the person is anaemic, has an infection or if platelet count is low at risk of bleeding.
They do a clotting screen to check if the person is at risk of bleeding and their blood not being able to clot on its own.
They do a cross match also known as a group and save to know the persons blood group and to order the range of bloods they may need such as red blood cells, platelets and if their clotting factor is derranged they will give either cryo or FFP (Fresh Frozen Plasma).
The other test is urea and electrolytes with also LFT's (Liver Function Tests). These will show if the person has good sodium, potassium, magnesium, urea, creatanine, phosphate, albumin, total billirubin, ALP, ALT, calcium levels.
In the hospital i work at they don't generally test for HIV or Hepatitis before an operation as they are supposed to use universal pecautions and wear gloves and mask whilst performing the procedure.

Answer 2

Hello,

The blood test before any major surgery is to check for a wide range of things but mostly for signs of infectious diseases & infectious conditions that havent previously been detected by the doctors & nurses.

Very important one's would be Hepatitis B, C, D & E as these can be transmitted to surgeons during the actual surgery. Which then obviously has serious impacts upon that surgeons ablity to operate on other patients.

The blood test would also look for things like anaema and low white cell counts, haemaglobin levels & red blood cell levels, blood platett levels, such tests can confirm the presence of cancers or other blood bourn conditions or lukaemia. Looking for signs that the blood clotts as normal,etc.

**Blood tests are also used to confirm blood group or blood type just incase of major blood loss during surgery so extra compatible blood units (transfusions) can be given without fear of the bodies immune system rejecting it which would be a life & death matter.

IR

Answer 3

It depends on the operation, but usually they will test for a full blood count, which will look at your red blood cells to see if you are anaemic, your white blood cells which may indicate infection. Blood will be taken for urea and electrolytes to make sure all other elements such as pottasium, sodium etc are within normal limits. They may also check your blood type for a large operation incase a transfussion is needed. Liver function test may also be taken.

Answer 4

Mostly to check your iron count and red & white blood cell levels. If you have trouble during or after surgery they can tell alot by comparing your bloodwork from before.

Answer 5

HIV examined has grow to hitch the common series of blood attempt which you recieve once you're admitted into the scientific institution... consisting of once you have a newborn... they attempt you and the toddler... they have PERMISSION once you sign ALL those records...

Answer 6

Your blood type incase you need a transfusion.

Answer 7

clotting agencys iron count hidden infections anything that may cause you problems

Answer 8

idiocy?