Frequently asked questions.
Thoughtful answers to general questions about neurodiagnostic testing.
These answers are general education, not personalized medical advice. Your ordering or testing healthcare professional provides instructions specific to your study.
Showing all FAQ categories.
General neurodiagnostics
What is neurodiagnostic testing?
Neurodiagnostic testing records electrical activity from the brain, nerves or muscles, or their responses to controlled stimulation. It supplies physiologic information that a healthcare professional may consider alongside your history, examination and other studies.
Who determines what my results mean clinically?
An appropriately licensed healthcare professional interprets the study in your clinical context. Technical acquisition is distinct from diagnosis, treatment and medical decision-making. Ask the responsible clinician how and when your findings will be discussed.
Can I book a test or upload a referral here?
No. This informational website does not offer patient booking, referral submission, records uploads, clinical intake or insurance verification. Contact is intended for general and professional inquiries only.
Are neurovascular studies currently available?
No. Neurovascular diagnostics are in development. The expanding-capabilities section is future-facing education, not a currently operational service.
EEG
What does an EEG record?
EEG records very small changes in electrical potential at the scalp that reflect cerebral electrical activity. Electrodes are sensors used to obtain those recordings; a routine EEG recording does not send electricity into the brain.
Will an EEG give a definite answer by itself?
Not necessarily. EEG findings have to be interpreted with the clinical question and other information. A routine recording samples a limited period, and a normal recording does not exclude every condition for which a clinician may request EEG.
EMG & nerve conduction
What is the difference between NCS and needle EMG?
NCS uses controlled electrical stimulation and surface recording to assess selected peripheral nerve responses. Needle EMG uses a fine needle electrode in selected muscles to record muscle electrical activity. They provide complementary information and are different procedures.
What does nerve stimulation feel like?
Brief stimulation may feel like a tapping or electrical shock and can be uncomfortable. Needle EMG may also cause discomfort. Sensations vary; ask the testing healthcare professional what to expect and how to communicate concerns.
Evoked potentials
What are evoked potentials?
These studies record nervous-system responses to a controlled stimulus. Somatosensory studies may stimulate a peripheral nerve, visual studies may use a checkerboard pattern, and auditory studies use sounds. The responses are recorded and assessed in the appropriate clinical context.
Are evoked potentials the same as imaging?
No. They measure electrophysiologic responses, rather than producing an MRI or CT image. They may complement other testing, but their role and limitations depend on the particular study and clinical question.
Preparation & expectations
How should I prepare?
Follow the instructions from your ordering or testing healthcare professional. Clean skin—and clean hair without styling products for EEG—may support electrode application. Ask about study-specific instructions rather than changing medication, sleep, caffeine or meals based on this website.
Should I stop my medication?
Do not stop or change prescribed medication based on website information. Ask the healthcare professional responsible for your study for individualized instructions.
How long will testing take, and when will I get results?
Timing varies with the protocol and clinical arrangements. No duration or result-delivery time has been verified for this website. Your testing team and responsible clinician can explain the expected process.
Can I send medical information by email?
Please do not send medical records, symptoms, diagnoses, results, insurance information or other sensitive health information through general email. A suitable secure channel must be separately established when clinical information is needed.