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Doctor insights on: Quantitative Sudomotor Autonomic Reflex Testing

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Dr. Lonnie Smith
7 Doctors shared insights

Autonomic Nervous System (Definition)

The autonomic nervous system is part of the peripheral nervous system. It is ‘autonomic’ because it does not require voluntary thought to function. The autonomic nervous system is divided into the sympathetic and parasympathetic nervous systems. The sympathetic system manages “fight or flight” responses and the parasympathetic system acts as a counterpart that manages ...Read more


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How might I feel after 3 horu autonomic testing? Might it trigger my dizzy spells if they're related to autonomic defiency?

How might I feel after 3 horu autonomic testing? Might it trigger my dizzy spells if they're related to autonomic defiency?

Yes, it might.: This is part of what this test is supposed to do. If you have a problem, your blood pools and you get symptoms from light headedness to a severe cardiac arrhythmia. This is why a person is monitored constantly by blood pressure and ecg. ...Read more

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What type of Dr. Would do ANSAR testing? (Autonomic NS and Resp) When would it be needed?

What type of Dr. Would do ANSAR testing? (Autonomic NS and Resp) When would it be needed?

Autonomic NS testing: Comes in a variety of forms and is typically done by a neurologist. It is done to clarify diagnoses disorders of the autonomic nervous system. ...Read more

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Having catecholamine blood testing lying down & standing up. What is this testing for? Autonomic dysfunction?

Having catecholamine blood testing lying down & standing up. What is this testing for? Autonomic dysfunction?

Yes...: ...And also can be testing for hypoadrenlism or cathecolamine excess. I assume this is for low blood pressure or possibly alternating with high blood pressure. It looks like you are on rheumatologic meds that are typically used for rheumatoid arthritis. This sounds appropriate of you are having symptoms. ...Read more

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Autonomic testing -- if I'm not having dizzy spells that day (let's say they'are reated to autonomic problem) that day, will my tests be negative?

No, still positive: If you are talking about dan (diabetic autonomic neuropathy) then the test will still be positive, dizzy (light headed) or not. The key is to treat underlying disease and improve circulation. In this case keep tight glucose control. ...Read more

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Despite normal tilt table test & neg cortisol stim test, neuromd now ordered catecholamine testing for autonomic dysfuntion d/t my sx. If +, what is tx?

Despite normal tilt table test & neg cortisol stim test, neuromd now ordered catecholamine testing for autonomic dysfuntion d/t my sx. If +, what is tx?

I think u have: Orthostatic hupotension- a drop in blood pressure with changing position from a lying to an upright position. Follow up with them. Get checked for diabetes. Treatment depends on the underlying condition. Avoidance of sudden rising up will minimize the sx. If there's a regular drop in blood pressure, there are meds to sustain normal bp. Pls read link below. ...Read more

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I'm having autonomic testing tomorrow due to my dizzy spells. I've had to stop my decongestant for 1 week & my dizziness is worse. Why do you think?

I'm having autonomic testing tomorrow due to my dizzy spells. I've had to stop my decongestant for 1 week & my dizziness is worse. Why do you think?

Antihistaminic effec: Most decongestant have antihistaminic effects that help dizziness so stopping it may have worsened your complaint. See what your test reveals as to the cause of this symptom. ...Read more

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Abnormal. .......autonomic nervous system testing. What can the problem be?

Autonomic nerve test: Abnormal autonomic nervous testing is most commonly due to peripheral neuropathy which has many different causes. Occasionally it may be caused by central nervous system disorder. ...Read more

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Will Autonomic Function Testing also show any possibly heart abnormalities? Can ANS dys. Cause abnormal EKG in otherwise health heart? Connected?

Will Autonomic Function Testing also show any possibly heart abnormalities? Can ANS dys. Cause abnormal EKG in otherwise health heart? Connected?

No, only some: Limited issues as a function of the methods used. As embodied Soul↔Mind↔Brain↔Body creatures sending >1, 000, 000 orders/sec brain→body with similar feedback, the real Hi-Tech=always inside. Medical technology is always, in varying degrees, low-tech, simplistic reflection of limited aspects of human behaviors with limited insights. Can ANS drive EKG changes? Absolutely, study: https://goo. Gl/gIycBT. ...Read more

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Do you know of a blood test called pna abs for dysautonomia caused after a viral syndrome. After blood test I will have autonomic functioning testing?

Do you know of a blood test called pna abs for dysautonomia caused after a viral syndrome. After blood test I will have autonomic functioning testing?

Mayo's does it: Mayo labs does the testing for these thankfully-rare autoimmune dysautonomias. These are rare but dramatic syndromes, and if you do indeed have one, I wish you good luck with this. Http://www. Mayomedicallaboratories. Com/articles/hottopics/transcripts/2011/02-auto-dys-eval/13.html. ...Read more

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Can autonomic dysfunction difficulty to diagnose? Can it still be present and not captured during testing?

Yes: Autonomic dysfunction can be difficult to diagnose. Sudomotor reflex testing, tilt table, ekg variability, sympathetic skin response and skin biopsy can all be useful to confirm the diagnosis. ...Read more

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My neurological symptoms have stumped the doctors.....?

My neurological symptoms have stumped the doctors.....?

YOU HAVE:: A proven skin punch biopsy diagnosis of small fiber neuropathy, and you possess one of the many causes of such an entity. Could be pre-diabetes, but with the ANA issues, might look further into collagen vascular categories. Other considerations, include Celiac disease, Sjogren's, HIV, paraproteinemias, B-12, etc.
Would check anti-GM-1 with IgG, IgM, as you might have an autoimmune sensory neuropathy, and might respond to a course of IVIG. Can you visit a neuromuscular specialist? ...Read more

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Would a ssri make the autonomic system more efficient and responsive?

Would a ssri make the autonomic system more efficient and responsive?

POTS syndrome: Short answer, yes. Long answer, serotonin is the hormone thought to be responsible for the autonomic nervous system hence heart rate and even blood pressure. Ssri's increase nerve communication and stimulate the standing vasoconstriction reflex and what this does it improves your vessels reactions to standing or sitting. ...Read more

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What are tx options for generalized edema caused by autonomic dusfunction?

What are tx options for generalized edema caused by autonomic dusfunction?

Dysautonomia: Edema is not typically a symptom associated with dysautonomia so other causes for the edema should be evaluated. ...Read more

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How would I reset or restart my autonomic system? Is it possible? Pots is ruining me -_-...Someone please help.

Patience: Good news: a recent review in the mayo clinic proceedings (2012 87 (8)746-752) found that after 1 year, most people with pots had improved and 37% no longer met criteria for the diagnosis! "stay calm and carry on! ". ...Read more

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I've allegedly got an autonomic disorder - however my BP lability makes me think I may have baroreflex failure. What is the difference b/t the 2?

I've allegedly got an autonomic disorder - however my BP lability makes me think I may have baroreflex failure. What is the difference b/t the 2?

Bizarre: There's an old saying in medicine that "common things happen commonly." the corrollary to that wisdom is that "rare things happen rarely." barorecptor failure is so rare that you can forget about it. Look for a different explanation. ...Read more

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Does autonomic neuropathy go away?

Does autonomic neuropathy go away?

Neuropathy: Unfortunately it would be very unlikely for autonomic neuropathy to resolve. ...Read more

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What is the autonomic vs central nervous system?

Unvoluntary: The autonomic is visceral, not on command, like control of heart, respiration, digestive, urinary systems, sexual arousal, etc

central is brain and spinal cord--then there is peripheral like nerves control movements of the limbs. ...Read more

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What's the difference between autonomic neuropathy and pots?

HR and BP.: Autonomic neuropathy is characterized by a large fall in blood pressure and a small rise in hr with standing. Pots is characterized by a large rise in hr and minimal change in BP with the same maneuver. Pots is more often seen in younger adults. Paxil (paroxetine) may contribute to symptoms of orthostasis. ...Read more

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What is autonomic dysfunction as it relates to blood pressure?

Dysautonomia: Or autonomic dysfunction, is a general term for various conditions in which the autonomic nervous system does not work correctly. This includes blood pressure regulation and heart rate control as well as many functions regulated by the vagus nerve. ...Read more

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What are symptoms of autonomic dysfunction? Tachycardia up to 190bpm?

Other cause fr tachy: Pl see link for a brief overview of autonomic dysfunction which generally does not include tachycardia in this range. If this is usual heart rate it could indicate SVT necessitating a cardiac evaluation and treatment to slow down the heart rate as indicated. ...Read more

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What is a the definition of cardiac autonomic neuropathy?

What is a the definition of cardiac autonomic neuropathy?

See below: Nerve damage that affects the nerves that control automatic functions of the heart. ...Read more

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Could years of sleep apnea obstructive cause autonomic dysfunction?

Could years of sleep apnea obstructive cause autonomic dysfunction?

See below: Good question. Obstructive sleep apnea (osa) ; autonomic dysfunction have been studied intently over the recent years. There are direct links surfacing between the two but more indirect links exist via osa ; Insulin resistance. So to answer your question, it's possible, especially if the osa is poorly controlled w/ other comorbidities present exacerbating the situation. Best to keep osa in check! ...Read more

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If sleep apnea is due to autonomic dysfunction, what can be done to stop it?

If sleep apnea is due to autonomic dysfunction, what can be done to stop it?

Splinting: Obstructive apnea is often a "side-effect" of the body's self-preservation mode during sleep. The same mechanisms that prevent us from acting out our dreams (think sleep walking and its risks). When muscles are "paralyzed" in sleep, the loss of tone of the muscles of the throat result in partial (snoring) or complete (apnea) collapse when inhaling. CPAP or dental devices splint the airway open. ...Read more

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I just started fludracortisone for autonomic dizzy spells. What are common side effects?

Salt&water retention: 1salt and water retention&swelling

2low pottasium level
3high blood pressure
4increase sweating
5increase susceptibility to infections
6fatigue and muscle weakness
7hersutism
8weight gain
9raised pressure in eyes
10cataracts
11raise blood sugar
12insomnia
13depression
14changes in menstrual cycle
15decrease bone density
16indigestion
but not all patients get all side effects, some are expected. ...Read more

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If I am now a 21yr old female with autonomic neuropathy caused by diabetes, will this ever go away?

If I am now a 21yr old female with autonomic neuropathy caused by diabetes, will this ever go away?

Diabetic neuropathy: Controlling your blood sugar is extremely important to deter the progression of diabetic neuropathy. Vitamin B12 (either by oral or injection) is also very important. Recent studies indicated that vitamin B12 depletion was related with the use of metformin. ...Read more

Dr. James Lin
7 Doctors shared insights

Autonomic (Definition)

The autonomic nervous system (ans or visceral nervous system or involuntary nervous system) is the part of the peripheral nervous system that acts as a control system functioning largely below the level of consciousness, and controls visceral functions, such as heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, ...Read more