Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What is R - Wave Amplitude?
The R-wave amplitude in the lateral precordial leads usually decreases more in normal than in abnormal subjects and correlates with left ventricular function. Patients with CAD (severe) are likely to have an increase in the R-wave amplitude with exercise. As exercise progresses and the heart rate increases, R-wave amplitude increases normally until the heart rate is approximately 120 or 130 beats per minute, and then the amplitude begins to decrease. This suggests that for the R-wave to have significance, an increase in amplitude should be at a heart rate greater than 120 bpm. The sensitivity of an R-wave increase is rather poor but the specificity can be good if the patient reaches high heart rates. Stress test responses are difficult to analyze in patients with LBBB. Lee and colleagues reported that R-wave changes in 23 patients with LBBB had a 93 per cent sensitivity, 88 per cent specificity and 93 per cent predictability. A reduction in amplitude helps to predict normal coronary arteries and good left ventricular function in LBBB. Berman and associates used the sum of the R-waves in aVL, aVF and V3 and V4, plus S and V1 and V2 and were able to identify CAD in 93 per cent of 230 patients subsequently studied with coronary angiography. An R-wave increase is reported with vasospastic angina and early in the course of a myocardial infarction, where it is predictive of the severity and the likelihood of severe arrhythmias.
The quartenary structure of a holoenzyme contains four long polypeptide subunits composed of non-polar, polar and charged amino acids. All subunits are properly folded and function
#question.what are the organs of respiration in the lwer form of animals .
How the water absorption volume and the water transpiration volume comparatively vary in plants in a day? What is the final comparative balance of these processes? Throughout t
what is advantages and disadvantages of the pour plate method
What happens if platelets aren''t present in blood?
Explain Historical Example of connecting models and data? An excellent instance of a program that links theory and data is collaborative work on the population dynamics of flou
Q. Why are most ammoniotelic beings aquatic animals? Aquatic animals like crustaceans, amphibian larvae and bony fishes generally are ammoniotelic since ammonia diffuses more e
Classification of Anaemias Based on Etiology Anaemia can be classified as Impaired Production of Red Blood Cells and Hemoglobin: This can be due to nutritional def
Q. What are the organic chemical groups that describe carbohydrates? How are carbohydrates classified according to the presence of those groups? Carbohydrates are also known as
Q. What are biogeochemical cycles? The Biogeochemical cycles are representations of the circulation and recycling of matter in nature. The major biogeochemical cycles studie
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd