What is intermittent st depression, Biology

Assignment Help:

What is Intermittent ST Depression ?

Ans.

Several patients progress from variable ST-segment depression, often associated with respiration, to the classic ST-segment changes typical of ischaemia. The mechanism of this condition seems to be related to the fact that inspiration and expiration are associated with different rates of left ventricular filling. If the compliance of the left ventricle is slightly decreased the increased rates of the filling may produce an elevation in the end diastolic pressure and therefore, ST-segment depression for only a few beats. This is almost always seen near maximum stress levels, when compliance of the ventricle would be expected to be decreased the most and when the abdominal pump would be returning the blood to the heart at the greatest velocity.


Related Discussions:- What is intermittent st depression

Determine factors affecting zn absorption - micro minerals, Determine Facto...

Determine Factors affecting Zn Absorption - Micro Minerals? In the last unit you have studied that absorption of various minerals (bioavailability) is influenced by number of f

The human population in a malaria ridden area, How does a sickle cell carri...

How does a sickle cell carrier have a benefit over the rest of the human population in a malaria ridden area? Why is organ transplantation from another person generally unsucces

Ciliates - parasitic protozoan, Ciliates - Parasitic Protozoan The onl...

Ciliates - Parasitic Protozoan The only ciliate of medical and veterinary importance is Balantidium coli which inhabit the large intestine of man, apes, monkeys and pigs. B. c

Explain dual energy x-ray absorptiometry (dexa), Explain Dual Energy X-ray...

Explain Dual Energy X-ray Absorptiometry (DEXA)? Dual energy X-ray absorptiometry (DEXA) is a relatively new technology that is being identified as a reference method for bo

Counselling diabetic travellers, Counselling Diabetic Travellers The c...

Counselling Diabetic Travellers The counsellor needs to educate a diabetic patient and /or his family members to following issues when such patients plan to travel: ·  Plan

Explain dna binding domains, Helix-turn-helix This  motif  have  of  tw...

Helix-turn-helix This  motif  have  of  two    -helices  divided  by  a  short  (four-amino   acid) peptide  sequence  which  forms  a   -turn that shown in above figure.  When

Type of fecundation that occur in arthropods, Q. What are the kinds of fecu...

Q. What are the kinds of fecundation that occur in arthropods? What is the predominant kind? In arthropods there are species having exterior fecundation and other species havin

What is dichogamy, What is dichogamy? Dichogamy is the phenomenon of th...

What is dichogamy? Dichogamy is the phenomenon of the maturation of female reproductive structures of the plant in a dissimilar period to the maturation of the male reproductiv

Define precipitation or solubility of proteins, Define Precipitation or Sol...

Define Precipitation or Solubility of Proteins? Most of the functional properties are dependent on the degree to which the proteins are soluble. The solubility behaviour provid

Isomerization of citrate, Isomerization of  citrate Isomerization of ...

Isomerization of  citrate Isomerization of  citrate:   In  this  step,  citrate is isomerized to isocitrate by aconitase which has iron-sulphur centre as  its prosthetic  grou

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