Dialysis Water Aluminium Standard — ESENeph MCQ

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EasyHaemodialysisDialysis Water Aluminium StandardESENeph

A 55-year-old man on haemodialysis has routine water testing showing aluminium concentration of 15 mcg/L in the treated water supply. The ISO standard requires aluminium to be below what threshold in dialysis water?

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Correct answer: D — <10 mcg/L – the treated water for dialysis must meet strict quality standards far exceeding drinking water standards

Dialysis water quality standards (ISO 23500, UKKA) require aluminium <10 mcg/L in treated water. This is much stricter than drinking water standards (200 mcg/L). Dialysis patients are exposed to 300-600 L of water per session – even trace contaminants accumulate rapidly. The measured 15 mcg/L exceeds the standard and requires immediate action: investigate the water treatment system (reverse osmosis membrane integrity, deioniser capacity), notify all patients and staff, consider temporary dialysis suspension or water trucking, and perform patient aluminium level testing.

Reference: ISO 23500 – Water for Dialysis; UKKA 2019 – HD Water Quality