ANS Testing Machine for Modern Healthcare Facilities
ANS Test helps healthcare providers choose and implement the right ANS testing machine for their practice. We provide expert guidance on equipment, setup, training, protocols, and the practical steps needed to establish ANS testing.
What is an ANS Testing Machine?
The autonomic nervous system (ANS) controls every involuntary function in the body, including heart rate, blood pressure, sweating, digestion, and breathing. When it fails, patients develop chronic, hard-to-diagnose symptoms.
An ANS testing machine performs non-invasive assessments of autonomic nervous system function. Choosing the right autonomic nervous system testing equipment is essential when building or expanding testing capabilities. Results can support clinical evaluation alongside other diagnostic information.
- Quick, patient-friendly procedure. Typically completed in 10 to 12 minutes.
What Does ANS Testing Equipment Typically Measure?
The ANS test measures the function of four domains, each corresponding to a specific nerve pathway. Together, they provide a complete autonomic profile.
The ANS test measures the function of four domains, each corresponding to a specific nerve pathway. Together, they provide a complete autonomic profile.

Cardiovascular Autonomic Function
- Heart rate variability (HRV) analysis
- Blood pressure response to standing
- Baroreflex sensitivity
- Valsalva ratio and E:I ratio

Sudomotor Function
- Electrochemical skin conductance
- Sweat gland activity at four sites
- Small fiber nerve integrity
- Sympathetic skin response (SSR)

Parasympathetic Activity
- Vagal tone assessment
- Respiratory sinus arrhythmia (RSA)
- Deep breathing response
- Lying-to-standing ratio (30:15)

Sympathetic Function
- Orthostatic hypotension response
- Tilt-table or standing challenge
- Vasoconstriction and pooling
- Adrenergic vs. neurogenic POTS distinction
How Does an ANS Testing Machine Work?
A complete autonomic nervous system test battery combines several individual tests, each measuring a different component of autonomic function.
Patient avoids caffeine and medication for a defined window before the test. They arrive rested and abstain from smoking.
ECG electrodes, a blood pressure cuff, and sudomotor sensors are placed on the skin. No needles involved.
The patient performs guided tasks: deep breathing, standing from lying down, and a sustained Valsalva maneuver.
The machine captures heart rate, blood pressure, and sweat response continuously throughout each maneuver.
Software may generate structured reports containing test results, trend data, and comparative reference information, depending on the system.
Key Features of ANS Testing Equipment

Multi-Parameter Simultaneous Capture
ECG, beat-to-beat blood pressure, and sudomotor data recorded in parallel, not sequentially.

Age-Matched Normative Database
Results may be compared against validated reference ranges by age and sex, flagging deviations with clinical significance.

EMR and EHR integration
HL7/FHIR-compatible data export directly into major EMR platforms, including Epic, Cerner, and athenahealth.

HIPAA-Compliant Cloud Storage
Encrypted cloud storage of test data with audit logs, role-based access, and longitudinal trending across visits.
Conditions Evaluated Using ANS Testing Equipment
- Postural Orthostatic Tachycardia Syndrome (POTS)
- Diabetic Autonomic Neuropathy
- Small Fiber Neuropathy
- Orthostatic Hypotension
- Vasovagal Syncope
- Multiple System Atrophy (MSA)
- Parkinson's Disease
- Peripheral Neuropathy
- Cardiac Autonomic Neuropathy (CAN)
- Chronic Fatigue Syndrome
- Dysautonomia
- Ehlers-Danlos Syndrome
- Post-COVID Autonomic Dysfunction
- Hyperhidrosis
- Sudomotor Dysfunction
- Reflex Sympathetic Dystrophy
ANS Testing Systems Used in Clinical Settings
The right system for a given facility depends on patient population, specialty focus, available space, and the specific autonomic testing protocols required.
Popular ANS Testing Machines on the Market
TM Flow System
An all-in-one wireless platform that measures autonomic, vascular, and sudomotor function in an automated session, typically completed in 7 to 10 minutes.
SudoScan
A sudomotor-focused system that measures small fiber nerve function through electrochemical skin conductance. It is commonly used to assess sudomotor function.
See our SudoScan guide ↪
VitalScan
An HRV-based system that evaluates autonomic function through heart rate variability and provides information related to parasympathetic and sympathetic activity.
See our VitalScan guide to learn more ↪
Healthcare Specialties Using ANS Testing Machines
ANS testing is no longer limited to neurology. As autonomic dysfunction becomes recognized across disciplines, adoption has expanded significantly.
What to Consider Before Purchasing an ANS Testing Machine

Patient Volume
Select equipment based on projected testing demand and workflow capacity.

Required Test Types
Determine whether your facility requires cardiovascular or full autonomic testing.

Available Space
Some systems require dedicated autonomic testing rooms or tilt table setups

Training Requirements
Staff onboarding and physician interpretation workflows should be considered early.

Software & Reporting
Evaluate reporting quality, EMR compatibility, and analytics capabilities.

Reimbursement Goals
Understand CPT utilization and operational return before implementation.
Our Process of Getting You The Right ANS Testing Equipment

Discovery Call
We learn your specialty, patient population, average monthly volume, and which conditions you are evaluating. 15 minutes.

Needs Assessment
We map your clinical requirements to the right test parameters and identify which equipment category fits your workflow.

Equipment Shortlist
We present two to three pre-vetted options with a clear comparison of features, costs, and reimbursement profiles.

Procurement and Setup
We handle the purchasing process, delivery coordination, and connect you to manufacturer onboarding and training resources.
Why Work With Us

Clinical Guidance
Expert medical review of your testing protocols

Equipment Procurement
Help selecting ANS testing systems for your specialty

CPT Reimbursement
Specialized billing and coding support for ANS testing services

Setup and Training
Equipment setup and training for your technician staff
Let Us Find the Right ANS Machine for Your Facility
- 470-552-6146
- [email protected]
- 1100 Peachtree Rd NE suite 250, Atlanta, GA 30309, US
Frequently Asked Questions
Sudomotor testing may be used as part of a broader assessment of autonomic and small fiber nerve function in patients with diabetes. Clinical interpretation should be performed by qualified healthcare professionals.
The setup and training are simple and can generally be done within an hour. Our team can provide training via video call or in person at your office.
ANS testing machines are commonly used in cardiology, neurology, endocrinology, internal medicine, family medicine, pain management, and functional medicine. The appropriate use depends on the patient's symptoms and the clinician's diagnostic approach.
TM Flow and SudoScan are different types of systems used in autonomic assessment workflows. Available features, testing capabilities, reporting tools, and intended applications vary by manufacturer and product configuration. Healthcare facilities should evaluate each system based on their clinical and operational requirements.
Coverage policies vary by payer and clinical scenario. Healthcare providers should verify documentation requirements, medical necessity criteria, and payer-specific coverage policies before testing.