A: In a properly supervised clinical environment, the risk profile is low. The most common effects are minor bruising or tenderness at the cannula site, a brief metallic taste from B vitamins, and the need to urinate more frequently in the hours after a larger fluid volume. Serious adverse events, such as allergic reaction to a drip component, infection, and fluid overload in vulnerable patients, are rare and are mitigated by physician screening, sterile single-use administration sets, and clinical monitoring throughout the session.