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HYPOPHOSPHATEMIA: Risk FactorsVitamin D deficiency | Refeeding after starvation | Alcohol use disorder | DKA | Alkalosis | Hypomagnesemia | Hypokalemia | Excessive loss of body fluids (sweat, diarrhea, vomiting, hyperventilation) | Burns | TPN | Overuse of antacids |
HYPOPHOSPHATEMIA: ManifestationsParesthesias | Muscle weakness | Bone pain & deformities | Chest pain | Confusion | Seizures | Nystagmus |
| | HYPOPHOSPHATEMIA: InterventionsOral phosphate replacement | Careful IV administration of phosphorus (for severe cases) | Gradual introduction of solution for pts on TPN | Protection from infection | Dietary management & education | Seizure precautions |
HYPERPHOSPHATEMIA: Risk FactorsRenal failure | Chemotherapy | Acute pancreatitis | High vitamin D | High phosphorus intake | Hypoparathyroidism | Excessive enema use | Acidosis |
| | HYPERPHOSPHATEMIA: ManifestationsTetany | Cramps | Paresthesias | Dysrhythmias | Trosseau's sign | Chvostek's sign | Hyperreflexia | Anorexia | Nausea | Vomiting | Soft tissue calcifications |
HYPERPHOSPHATEMIA: InterventionsIV normal saline | Medications: | Dialysis | Vitamin D | Dietary management & education | Aluminum hydroxide | | Diuretics |
Phosphorus has an inverse relationship with calcium
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