Which condition is NOT considered a risk factor for contrast-induced nephrotoxicity (CIN)?

Contrast-induced nephrotoxicity (CIN) is a condition that can arise when a contrast agent is administered, leading to potential deterioration of kidney function. Understanding the risk factors associated with CIN is crucial for preventing this complication.

Individuals with diabetes, myeloma, or cardiac disease are all at an elevated risk for developing CIN due to existing renal vulnerabilities. Diabetes can lead to diabetic nephropathy, a common complication that affects kidney function, making those with the disease more susceptible to CIN. Myeloma, particularly multiple myeloma, involves abnormal proteins that can cause renal impairment and enhance the effects of contrast agents. Patients with cardiac disease often have underlying conditions affecting renal perfusion and function, thereby increasing their risk as well.

In contrast, individuals with healthy kidney function typically do not present the same risk factors that predispose them to contrast-induced nephrotoxicity. Healthy kidneys are better equipped to handle the excretion of contrast agents. Thus, having intact renal function serves as a protective factor against CIN, as the kidneys can effectively manage the potentially harmful effects of the contrast media.