The pre-operative profile is the research that is performed before surgery. Thanks to them, it is possible to assess not only the general he alth of the patient, but also the risk of coagulation disorders or abnormalities in the work of the heart during surgery. Check what tests should be performed before the surgery, what are the standards and how to interpret the results.

Pre-operative profileisblood testswhich are performed before surgery. They allow to assess the general he alth of the patient and check the probability of heart or kidney disorders during the procedure. In addition, they allow you to assess the risk of coagulation disorders during surgery, and thus - difficult-to-control bleeding.

The preoperative profile includes tests such as blood group, blood count, electrolyte concentration (potassium, sodium), APTT and PTT, and anti-HBs and anti-HCV. It is recommended to perform the operating profile no later than one month before the planned procedure.

1. Blood group

Knowing the patient's blood type is essential before surgery. During the examination, it may be necessary to quickly transfuse blood, and the knowledge of the blood type increases the chances of its quick selection.

CHECK>>What kind of blood recipient and donor you are

2. Blood count

Blood morphology allows you to assess overall he alth. It is very important to have this test performed prior to surgery, as it helps to identify disorders that may be a contraindication to surgery.

READ>>BLOOD MORPHOLOGY - how to read the result? Important

Pre-operative profile - standards

  • APTT - 28-34 seconds
  • PT - 13-17 sec. or 0.9-1.3 INR (2-4 INR therapeutic range) or 80-120% (Quick indicator)
  • anti-HBs - present (regardless of concentration). The exception is patients who are chronically ill, especially those with impaired immunity - then the anti-HBs concentration should be ≥10 mIU / ml
  • anti-HCV - negative result (no presence)
  • sodium - 135-145 mmol / l
  • potassium - 3.5-5 mmol / l

3. APTT and PT

ATTP (Activated Partial Thromboplastin Time or Kaolin Kephalin Time) and PT (Activated Partial Thromboplastin Time)prothrombin) are tests that allow you to determine the time of blood clotting. For ATTP, this time is indicated in seconds and PT in seconds, or as the international normalized ratio, i.e. INR.

Extending the kaolin-kephalin time may indicate a deficiency of individual coagulation factors (e.g. haemophilia, liver diseases, drug treatment - heparin, warfarin, acenocoumarol). In turn, shortening the kaolin-kephalin time suggests hypercoagulability.

If the prothrombin time is above the norm, one may also suspect, inter alia, coagulation factor deficiencies and liver disease. On the other hand, the prothrombin time below the norm indicates, inter alia, for thrombosis and thrombophilia.

4. Electrolytes (sodium, potassium)

The determination of the concentration of sodium and potassium allows the diagnosis of disturbances in the water and electrolyte balance. This is very important as abnormal electrolyte levels during surgery may lead to cardiac arrhythmias and complications during anesthesia.

5. anti-HBs

The aim of the test is to assess the presence of anti-HBs antibodies (against hepatitis B). Their presence indicates immunity against hepatitis B after vaccination or a history of hepatitis B. If they are absent, it means that vaccination against hepatitis B (hepatitis B) has not secured immunity and a booster dose of vaccine against hepatitis B should be given before surgery. hepatitis B. During surgery, he may become infected with the HBs virus.

CHECK>>Hepatitis B (implantable jaundice) - how can you get infected? Routes of hepatitis B infection

6. anti-HCV

The aim of the test is to assess the presence of anti-HCV (against hepatitis C) antibodies. Normally they shouldn't be in the blood. Their presence indicates contact with HCV.

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