For nurses, understanding the role of phosphorus is crucial in assessing and managing patients' health. Abnormal phosphorus levels can indicate various health issues that need to be addressed promptly. For instance, low phosphorus levels, known as hypophosphatemia, can lead to muscle weakness, respiratory failure, and cardiac dysfunction. On the other hand, high phosphorus levels, known as hyperphosphatemia, can cause severe complications, especially in patients with chronic kidney disease.