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Dynamic changes in serum phosphorus levels in diabetic ketoacidosis
The American Journal of Medicine
|November 1, 1985
Summary
Hyperphosphatemia is common in diabetic ketoacidosis before treatment. Serum phosphorus levels in these patients often decrease significantly after therapy initiation.
Area of Science:
- Endocrinology
- Nephrology
- Metabolic Disorders
Background:
- Diabetic ketoacidosis (DKA) is a serious complication of diabetes mellitus.
- Serum phosphorus levels can fluctuate significantly during DKA management.
- Understanding these dynamics is crucial for effective patient care.
Purpose of the Study:
- To retrospectively evaluate dynamic changes in serum phosphorus levels during diabetic ketoacidosis.
- To identify factors associated with hyperphosphatemia in DKA patients before treatment.
Main Methods:
- Retrospective analysis of 69 DKA episodes in 48 diabetic patients.
- Measurement of serum phosphorus levels within the first six hours of admission.
- Correlation analysis of serum phosphorus with glucose, osmolality, anion gap, and chloride.
Main Results:
- Hyperphosphatemia (94.7%) was prevalent before DKA therapy initiation.
- Mean serum phosphorus decreased from 9.2 mg/dl to 2.8 mg/dl within 12 hours of therapy.
- Pre-therapy serum phosphorus positively correlated with serum glucose, osmolality, and anion gap; negatively with serum chloride.
Conclusions:
- Hyperphosphatemia is a common finding in untreated diabetic ketoacidosis.
- A transcellular shift, potentially driven by serum glucose and organic anions, likely causes elevated phosphorus.
- These findings highlight the importance of monitoring phosphorus during DKA treatment.
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