General instructions for Cardiac catheterization (coronary angiography)
It is a procedure in which a very fine tube (catheter) is introduced through a blood vessel (usually in the wrist or groin) to the heart to evaluate, and even treat, the coronary arteries.
- Fasting: Strict fasting for 6 to 8 hours before the test is required. You must not consume any solid food or liquids (not even water) during this time.
- Medication: As a general rule, you should take your usual medication with a very small sip of water. However, it is vital that you ask your doctor how to proceed if you take anticoagulants (such as Sintrom), antiplatelets or diabetes medication (especially metformin or insulin), as these often require adjustment or suspension.
- Clothing and Accessories: Wear comfortable clothing that is easy to remove. The hospital will provide you with a gown for the procedure. Leave all jewellery, watches and piercings at home and remove any nail polish, as the medical staff need to monitor your circulation and oxygen levels.
- Specific Requirements: Local anaesthesia and often mild sedation are used, so you must come with a family member or friend. After the test, you will need to rest for a few hours and you will not be able to drive home. It is essential that you tell the doctor if you are allergic to iodinated or radiological contrast media.
- Mandatory requirement: If there is any possibility that you are pregnant, you must inform the staff before the test.*
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