The preparation for surgery should be started about 2 weeks before the planned date of surgery. The patient is referred to perform the necessary laboratory tests:
- Blood group designation,
- Diagnostics of infectious diseases (HBs antigen, anti-HCV antibodies),
- Blood count,
- Coagulological profile: Activated partial thromboplastin time (APTT), prothrombin time (PT+INR),
- Blood serum biochemical tests: glucose level, sodium ions (Na), potassium ions (K), creatinine level,
- Electrocardiographic examination (ECG),
- Persons treated for thyroid diseases (hyperthyroidism, hypothyroidism, after removal of the thyroid gland): obligatory determination of the level of thyroid hormones in the serum: TSH, T3, T4,
- Patients over 61 years of age should have a chest X-ray performed (required before general anaesthesia).
If the patient is treated for chronic diseases, additional examinations (e.g. pulmonary, cardiac) are sometimes necessary. The scope of examinations is determined individually for each patient.
The following are also advisable:
- Vaccination against hepatitis type B (HBs),
- Withdrawal of anticoagulants 10 days before the surgery.
Oral medications (Acard, Polocard, coumarin derivatives, and others) should be replaced by injections of heparin preparations, for example, Clexane, Fraxiparin, Fragmin, administered subcutaneously in an appropriate dose. The dose is determined by the physician.
- Recovering all infections in the body, e.g. respiratory tract infections (rhinitis, cough, sore throat, sinus pain) and urinary tract infections.
Infections even of low intensity disqualify the patient from surgery.
- Cure tooth decay.
Before the surgery, a visit to the anaesthesiologist takes place, during which the anaesthesiologist confirms the qualification of the patient for surgery and chooses the anaesthetic agent.


