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Merck Manual LogoMERCK MANUALConsumer Version
Electrolyte Balance
  • Overview of Electrolytes
  • Overview of Sodium's Role in the Body
    • Controlling blood volume
    • Maintaining fluid and sodium balance in older adults
  • Hypernatremia (High Level of Sodium in the Blood)
    • Symptoms
    • Diagnosis
    • Treatment
  • Hyponatremia (Low Level of Sodium in the Blood)
    • Causes
      • Role of vasopressin
    • Symptoms
    • Diagnosis
    • Treatment
  • Syndrome of Inappropriate Secretion of Antidiuretic Hormone (SIADH)
    • Causes
    • Symptoms
    • Diagnosis
    • Treatment
  • Overview of Potassium's Role in the Body
    • More Information
  • Hyperkalemia (High Level of Potassium in the Blood)
    • Causes
    • Symptoms
    • Diagnosis
    • Treatment
      • Mild hyperkalemia
      • Moderate to severe hyperkalemia
  • Hypokalemia (Low Level of Potassium in the Blood)
    • Causes
    • Symptoms
    • Diagnosis
    • Treatment
  • Overview of Calcium's Role in the Body
    • More Information
  • Hypercalcemia (High Level of Calcium in the Blood)
    • Causes
      • Hyperparathyroidism
      • Familial hypocalciuric hypercalcemia
    • Symptoms
    • Diagnosis
    • Treatment
  • Hypocalcemia (Low Level of Calcium in the Blood)
    • Causes
    • Symptoms
    • Diagnosis
    • Treatment
  • Overview of Magnesium's Role in the Body
    • More Information
  • Hypermagnesemia (High Level of Magnesium in the Blood)
    • Symptoms
    • Diagnosis
    • Treatment
  • Hypomagnesemia (Low Level of Magnesium in the Blood)
    • Causes
    • Symptoms
    • Diagnosis
    • Treatment
  • Overview of Phosphate's Role in the Body
    • More Information
  • Hyperphosphatemia (High Level of Phosphate in the Blood)
    • Symptoms
    • Diagnosis
    • Treatment
  • Hypophosphatemia (Low Level of Phosphate in the Blood)
    • Acute hypophosphatemia
    • Chronic hypophosphatemia
    • Symptoms
    • Diagnosis
    • Treatment
MSD
MSD

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