II. Indication
- Cystic Fibrosis testing
III. Method
- Quantitative Pilocarpine Iontophoresis
- Stimulates local sweat production (parasympathetic)
- Collect sweat on gauze pads
- Analyze Sodium and chloride content
- Minimum sweat amount required: 50 mg (200 mg better)
IV. Normal
- Sweat contains <60 meq/Liter Chloride and Sodium
V. Abnormal Results
VI. Indications to repeat the test for confirmation
- Positive Test
- Suspected false negative
VII. False positive Tests
- Glucose 6 phosphate dehydrogenase deficiency (G6PD)
- Hypothyroidism
- Glycogen Storage Disease
- Untreated Adrenal Insufficiency
- Malnutrition
VIII. Reference
- Bakerman (1984) ABC's of Lab Data, ILD, Greenville, NC
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| Concepts | Laboratory Procedure (T059) |
| SnomedCT | 145410001, 145401009, 168181007, 168172001 |
| English | Sweat test NOS, sweat analysis, sweat testing, sweat test, sweat tests, Sweat test NOS (procedure), Sweat screening test, Sweat test, Sweat test (procedure) |
| Spanish | Prueba del sudor, test del sudor, SAI (procedimiento), Sweat test NOS, test del sudor, SAI, prueba del sudor (procedimiento), prueba del sudor |
| Dutch | zweettest |
| German | Schweisstest |
| Japanese | ｶﾝｼｹﾝ, 汗試験, ｱｾｼｹﾝ |
| Czech | Vyšetření potu |
| Portuguese | Teste do suor |
| Italian | Test del sudore |
| French | Test de la sueur |
| Hungarian | Verejték vizsgálat |
