What precautions must be observed with angiography?

Angiography is a medical imaging technique used to visualize the inside of blood vessels. It involves injecting a contrast dye into the bloodstream, which can cause several risks. Therefore, it is important to observe the following precautions:

- Allergy screening: Patients should be screened for allergies to the contrast dye before the procedure. If an allergic reaction occurs, it can range from mild symptoms such as rash and itching to severe reactions like anaphylaxis.

- Assess renal function: The kidneys play a vital role in eliminating the contrast dye from the body. Patients with impaired kidney function may be at increased risk of developing complications from the dye, such as kidney damage.

- Hydration: Adequate hydration before and after the procedure helps to protect the kidneys and facilitate the removal of the contrast dye from the body.

- Fasting: In certain cases, patients may be required to fast for several hours before the procedure to minimize the risk of nausea and vomiting.

- Avoidance of certain medications: Some medications, such as blood thinners, may interfere with the clotting process and increase the risk of bleeding during the procedure.

- Patient monitoring: During and after the procedure, patients are closely monitored for any adverse reactions, including changes in vital signs, discomfort, or allergic symptoms.

- Compression after the procedure: After the injection site, compression is applied to help stop the bleeding and reduce the risk of developing a hematoma.

- Avoiding strenuous activities: Patients should avoid strenuous activities for a period after the procedure to minimize the risk of bleeding or discomfort.

By following these precautions, healthcare providers can help ensure the safety of patients undergoing angiography.