A life-saving lesson

Maurits Devenish biology class explores dialysis at Medipark
Angelina Coimbra & Shaun Nchindo
  • 6 Hours Ago

On 18 February 2026, Grade 11 biology students from Maurits Devenish Private School traded their classroom for the state-of-the-art facilities at Ongwediva Medipark.

The educational excursion aimed to provide a deeper, first-hand understanding of how kidney dialysis serves as a critical, life-sustaining treatment for patients with renal failure.

Upon arrival at the dialysis unit, students were struck by the tranquil and meticulously organised atmosphere. The department prioritises patient dignity, ensuring that each individual is treated with respect and privacy. Guided by four trained nurses, the class was taken through the specialised facility to observe how the advanced medical systems operate on a daily basis.

The visit highlighted the vital role dialysis plays in mimicking natural biological processes. Nursing staff explained that healthy kidneys are responsible for filtering metabolic waste and maintaining fluid homeostasis. When these organs fail, dialysis machines take over these functions, preventing the dangerous build-up of toxins - a lesson that brought the complexity of kidney disease into sharp focus for the students.

A highlight of the tour was the reverse osmosis (RO) room. Students learned that water purification is not merely a technical requirement but a critical safety process. Purified water is essential for producing the dialysate used to clean a patient’s blood, and any impurity could lead to severe medical complications.

The tour concluded with an emphasis on strict hygiene protocols and infection-control measures necessary to protect vulnerable patients. Students were also introduced to the technical challenges involved in maintaining vascular access, such as grafts. Staff noted that if a graft is damaged, it can lead to rapid, life-threatening blood loss, underlining the delicate balance and expertise required in renal care.

The visit was described as highly educational and eye-opening. It emphasised the importance of maintaining kidney health while demonstrating how modern medical technology is driving life-saving advances.