Laboratory recommendations
This includes: tests for potassium, sodium, chloride and calcium ions, and pH.
The balance of ions in blood serum reacts immediately to food, physical activity, stress and medicines.
Special requirements
- Medicines: in agreement with your treating doctor, it is recommended that medicines directly affecting water and salt balance be stopped several days before the test. These include diuretics, cardiac glycosides, calcium and potassium preparations, and potassium-sparing medicines. If a medicine cannot be stopped, make sure you tell the registration staff when registering for the test.