Sweat Electrolyte Profile (Qualitative)

Why This Test Is Done

Your doctor may recommend this test if you have symptoms like frequent dehydration, muscle weakness, or unexplained high blood pressure. It’s particularly useful for diagnosing conditions like cystic fibrosis or certain genetic disorders that affect sweat chemistry.

What to Expect Before the Test

You’ll wear a special suit or bandages to collect sweat over a few hours. The process is painless but may feel warm or sticky. Avoid sweating excessively before testing by staying cool and avoiding strenuous activity.

What the Results Mean

The test checks for abnormal levels of sodium, chloride, or other electrolytes in sweat. High levels may indicate conditions like cystic fibrosis or primary aldosteronism, while low levels could signal other metabolic issues.

Common Conditions Linked to Sweat Electrolyte Tests

Conditions like cystic fibrosis, Bartter syndrome, or Gitelman syndrome often show elevated sweat sodium or chloride. These disorders can disrupt normal fluid balance, leading to symptoms like fatigue or electrolyte imbalances.