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

Digestion, explain digestion in protozoans

explain digestion in protozoans

Subphylum opalinata, Subphylum Opalinata Body covered with longitudin...

Subphylum Opalinata Body covered with longitudinal rows of cilium like ,organelles but true ciliature absent. Parasitic; cytosome lacking; two to many nuclei of one type.

What are food hydrocolloids, What are food hydrocolloids? Food hydroco...

What are food hydrocolloids? Food hydrocolloids are hydrophilic polymers of vegetable, animal, microbial or synthetic origin that generally contain many hydroxyl groups and ma

What are gene interactions?, What are gene interactions? What are the three...

What are gene interactions? What are the three main types of gene interactions? The Gene interaction is the phenomenon in which a given phenotypical trait is conditioned by two

Why heartwood differs from sapwood, Heartwood differs from sapwood in: 1...

Heartwood differs from sapwood in: 1. Presence of rays and fibres 2. Absence of vessels and parenchyma 3. Having dead and non-conducting elements 4. Being susceptible t

Air can enter a plant through the leaf, Air can enter a plant through the l...

Air can enter a plant through the leaf Procure a leaf with a long stalk to it and seal it into a hole through a cork. Fit this with a side tube, and seal the cork into a flask

Photoorganoheterotrophs, photoorganoheterotrophs why don''t use light for p...

photoorganoheterotrophs why don''t use light for photosynthesis?

Can you explain myopia and hypermetropia, Q. How can the visual deficiencie...

Q. How can the visual deficiencies known as myopia and hypermetropia be optically explained? Myopia is the visual condition in which the images are formed previous to (in front

Phylum protozoa, hints for preparing for college assignment any outline

hints for preparing for college assignment any outline

Explain mendels law of dominance, Which one of the following cannot be expl...

Which one of the following cannot be explained on the basis of Mendel's Law of Dominance? 1. The discrete unit controlling a particular character is called a factor 2. Out o

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