Table 23-2
- Hyperkalemic
- Sodium channel defect
- Potassium level normal or >5.5 mEq/L during symptoms
- Rest after exercise
- Potassium infusions
- Metabolic acidosis
- Hypothermia
- Skeletal muscle weakness may be localized to the tongue and eyelids
- Hypokalemic
- Calcium channel defect
- Potassium level < 3 mEq/L during symptoms
- Large glucose meals
- Strenuous exercise
- Glucose-insulin infusions
- Stress
- Hypothermia
- Chronic myopathy with aging