St-segment depression after hyperventilation, Biology

Assignment Help:

Q. ST-segment depression after  hyperventilation?

Patients with abnormal autonomic drive have demonstrated ST-segment depression after hyperventilation as well as after exercise. Patients who display ST-segment depression at rest or an increased ST-segment depression after hyperventilation, in whom the depression tends to return to normal with exercise usually do not have epicardial CAD. Changes associated with hyperventilation are associated with normal coronary arteries. Propranolol and other beta-blockers have been shown to back the ST changes associated with hyperventilation, suggesting an autonomic etiology. The common findings that body position may produce similar changes tends to support this concept. These types of changes are common in patients with mitral prolapse.


Related Discussions:- St-segment depression after hyperventilation

Define advantages of using the plate counts method, Define Advantages of Us...

Define Advantages of Using the Plate Counts Method? 1. It is simple and sensitive method. 2. It provides viable count as only live cells will grow and produce the colony.

Overall senescence - senescence, Overall senescence - Senescence Only ...

Overall senescence - Senescence Only the parts above the ground level i.e.  The aerial parts die whereas the underground parts survive For example, potato.

Composting, C o m p o s t i n g It is a modification of a conv...

C o m p o s t i n g It is a modification of a conventional or solid manure handling system with anaerobic decomposition. Types of composting systems include windrow, b

Why the rate of photosynthesis does increases, Why the rate of photosynthes...

Why the rate of photosynthesis does increases, peak, and then reduces as temperature increases? Increasing the temperature initially accelerates the many chemical reactions in

What are cerebrovascular accidents, Q. What are cerebrovascular accidents? ...

Q. What are cerebrovascular accidents? The Cerebrovascular accident (CVA), as well known as stroke, is the generic name given to infarction (tissue and cellular death by hypoxi

Describe the term - ambulacral groove, Describe the term - Ambulacral groov...

Describe the term - Ambulacral groove The groove that runs down the oral surface of each echinoderm arm and contain the tube feet. If the region contains a visible furrow, or gr

Investigation of aortic regurgitation by exercise testing, Q. Investigation...

Q. Investigation of aortic regurgitation by Exercise Testing? It is helpful in assessing functional capacity, symptom status and hemodynamic effects in patients with severe AR

What is the connection between tissue fluid and plasma, What is the connect...

What is the connection between tissue fluid, plasma and lymph? Tissue fluid is plasma (minus its proteins) which has leaked out of the capillaries. Lymph is tissue fluid which

How does the contraceptive diaphragm work, Q. How does the contraceptive di...

Q. How does the contraceptive diaphragm work? What are the limitations of this contraceptive method? The contraceptive diaphragm is an artifact made of plastic or latex that wh

Wbcs types, mode of action of wbcs types

mode of action of wbcs types

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd