Is the Use of Radiographic Contrast Agent Harmful to the Body?

Contrast agents pose certain risks to the body, mainly impacting the kidneys. Many modern medical examinations require the use of contrast agents. After the examination, these agents are excreted through the kidneys, potentially burdening them. Therefore, it is advisable to drink more water after a contrast-enhanced examination to mitigate the harm to the kidneys.

1. Currently, contrast agents are primarily used in enhanced CT scans, angiography, and various other medical imaging techniques. They are typically only used when deemed safe. For patients with poor liver or kidney function, doctors may opt for alternative methods for comprehensive examination. Despite the potential side effects of contrast agents, they enable more accurate observation during the examination process and are crucial for detailed diagnostics.

2. All medications have the potential to cause allergic reactions, and iodinated contrast agents have a higher likelihood of inducing allergies. Some patients may develop skin rashes or, in severe cases, experience allergic shock after a contrast-enhanced examination.

3. Since contrast agents are injected into the bloodstream and excreted through the kidneys, iodinated contrast agents can damage the kidneys during excretion, leading to decreased renal function, known as contrast-induced nephropathy.