Home patients dialyzing during the day and more than 4 times per week at end of reporting

Why This Test Matters for Dialysis Patients

Dialysis patients rely on their kidneys to filter waste and balance electrolytes like potassium, sodium, and bicarbonate. This test helps doctors check if your levels are stable and avoid complications from too much or too little of these substances, which can affect your heart, muscles, and nerves.

What the Test Measures

The test typically includes measurements for sodium, potassium, chloride, bicarbonate, creatinine, and sometimes urea nitrogen. These levels help ensure your body’s fluids and chemistry remain within safe ranges during dialysis sessions.

How Often You Might Get This Test

Doctors may order this test more frequently if you’re dialyzing often (more than 4 times a week) or if you have symptoms like muscle cramps, confusion, or irregular heartbeat. It’s part of routine monitoring to adjust your dialysis plan as needed.

What to Expect Before the Test

You’ll likely have a small needle inserted into a vein (usually in your arm) to draw blood. This is quick and usually doesn’t cause pain. If you’re on dialysis, your blood may be drawn from your dialysis access site (like a fistula or graft) during or after your session.