QSweat Test
At POTS.net, we offer the QSweat Test as part of our comprehensive diagnostic tools for evaluating autonomic nervous system function. This non-invasive test helps identify small nerve fiber dysfunction, a common issue in conditions like Postural Orthostatic Tachycardia Syndrome (POTS) and dysautonomia.
Purpose of the QSweat Test
The QSweat Test is used to:
- Assess autonomic nerve damage
- Identify sweat pattern abnormalities
- Diagnose small fiber neuropathy
- Evaluate autonomic disorders like POTS, diabetes-related neuropathy, or autoimmune dysautonomia
- By measuring how well the body’s nerves control sweating, the test provides vital insights into autonomic nervous system integrity.
Safety and Preparation
The QSweat Test is safe and noninvasive. Patients may experience slight tingling or warmth during stimulation. To prepare:
- Avoid applying lotions on test areas
- Refrain from caffeine, alcohol, or nicotine before the test
- Follow your physician’s instructions regarding medication
Your results will be reviewed alongside other autonomic evaluations to determine next steps.
When is the QSweat Test Recommended?
- This test is especially helpful for patients with:
- Unexplained dizziness or fainting
- Burning or tingling sensations in extremities
- Unusual sweating (too much or too little)
- Temperature intolerance
- Suspected small fiber neuropathy or autonomic dysfunction
QSweat may be ordered alongside other autonomic tests such as the Tilt Table Test, Heart Rate Variability, and EEG.
How the QSweat Test Works
QSweat evaluates sweat gland function through controlled stimulation. During the test:
- Small electrodes are placed on the forearm, foot, chest, and leg.
- A mild electrical current introduces a medication to stimulate sweat glands.
- The response is measured using sensitive detectors.
The entire procedure takes about 45–60 minutes, is painless, and does not require recovery time.
Results and Interpretation
QSweat results are interpreted based on sweat output across different body sites. Abnormal findings may suggest:
Localized nerve damage
Early-stage small fiber neuropathy
Sympathetic nervous system dysfunction
Why Choose POTS.net for Autonomic Testing?
- Specialized Care: Our team has years of experience in autonomic disorder diagnosis and care.
- Comprehensive Testing: We offer a complete suite of autonomic tests including 24-Hour Blood Pressure Monitoring and Gastric Emptying Study.
- Patient-Centered Approach: Every test and treatment plan is personalized for your symptoms and history.
Appreciated by Our Patients
Contact Us
If you are experiencing symptoms of POTS or have been diagnosed with the condition, we are here to help. Schedule an appointment with our specialists to start your journey toward better health.