The preparation process before angiography is of great importance for patient safety and the success of the procedure. Here are some important points to consider during this process:

1. Blood Tests: The patient's complete blood count and coagulation parameters must be evaluated. Especially a low platelet count can lead to an increased risk of bleeding during the procedure. Coagulation disorders should be corrected before starting angiography.
2. Kidney Functions: Due to the excretion of the contrast agent used during angiography through the kidneys, the patient's kidney functions must be at an adequate level. The risk of contrast-induced complications may increase in patients with kidney failure.
3. Fasting Status: Food and drink intake should be stopped 8-10 hours before the procedure (fasting status).
4. Medication Adjustments:
* Diabetes Medications Containing Metformin: Some diabetes medications containing metformin as an active ingredient need to be discontinued for a certain period before angiography. Otherwise, serious side effects such as kidney failure or lactic acidosis may occur.
* Blood Thinners: Under the doctor's recommendation, some blood-thinning medications may need to be temporarily stopped. However, discontinuing widely used medications like aspirin is generally not recommended. Medication adjustments must always be made under the supervision of a physician.