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.
Kingdom Monera The monerians are structurally the simplest of all living things. They have apparently changed little since they first appeared on the earth. Their structure is
Give the introduction to evaluation of patient clinical examination ? A careful physical examinations is a very important for assessing the cardiovascular system and after prov
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
#question what is the diff, urogenital system of the invertebrae animal?
Indicating the name and respective ploidy of each involved cell how can the formation of sperm cells from germ cells be described? The formation of sperm cells, or spermatogene
Define Methods of Estimation of Energy Expenditure and Requirements? There are a variety of methods available to measure human energy expenditure. Knowledge of these methods wi
Determine General Principles of Allergy Management? The four general principles of allergy management include: 1. Avoid factors that cause symptoms. 2. Use appropriate
1. The transcription and replication of DNA requires a multitude of protein complexes a. Describe the events that occur during the initiation of transcription of eukaryotic prot
Q. Is reproduction in sponges asexual or sexual? Reproduction in sponges can be asexual by budding, fragmentation or gemmation (regeneration) or sexual with larval stage a cili
Q. What are the main cytoplasmic structures present in animal cells? The main cytoplasmic structures of the cell are the centrioles, the cytoskeleton, mitochondria, peroxisomes
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd