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q what is atrial extrasystolesatrial premature beats often occur at lower workloads and have little significance as exercise increases they usually
risk characterization risk characterization integration of hazard identification hazard characterization and exposure
what is exposure assessmentexposure assessment the qualitative and quantitative evaluation of the degree of intake likely to
q what is supraventricular arrhythmiassuch arrhythmia tend to be reduced by the vagal withdrawal accompanying the onset of exercisethis and wandering
q what is st depression at restas early as 1965 ostrand called attention to the syndrome of short pr interval without accelerated conduction and its
q what is sick sinus syndromeanswhen a slow resting pulse fails to accelerate normally with exercise it has been labeled chronotropic incompetence
what is hazard identificationhazard identification the identification of known or potential health effects associated
q rhythm and conduction disturbancesalterations in cardiac rhythm occur frequently with exercise and are important in understanding a patients
explain risk assessmentrisk assessment the scientific evaluation of known or potential adverse health effects
q define st elevation in avrlead avr often develops st elevation as a reciprocal of st depression in lead v2 to v6 or leads 2 and 3 it may
q describe u - wavesthe u-wave is usually upright if the t is also upright and is highest at low rates when the heart rate increases to more than 90
q can you define p-waveschanges in p-wave morphology have been well described in resting tracings and are very useful in identifying right and left
explain risk analysis risk analysis a process consisting of three components risk assessment risk management and
q what is tall t-waveit has been reported that tall t-wave during or after exercise indicate inferior wall ischaemia however ellestad reports the
q what is peaked t-wavesexercise induced increase in t-wave amplitude in v2 is quite predictive of anterior wall ischaemia specificity 95 percent it
what is risk risk a function of the probability of an adverse effect and the magnitude of that effect consequential to
q what is normalisation of inverted t-wavesin patients with flat or inverted t-waves at rest the evolution to an upright t-wave has been considered
risk analysis - definition of hazardhazard a biological chemical or physical agent in or property of food that might
q what is qt dispersionis the difference between the qt interval measured from one part of the heart and the qt interval measured from another part
risk analysis- definiton of foodfood any substance whether processed semi- processed or raw which is intended
q duration limit of the qrsthe duration of the qrs is usually reduced slightly during exercise because catecholamines increase conduction velocity in
q what is r - wave amplitudethe r-wave amplitude in the lateral precordial leads usually decreases more in normal than in abnormal subjects and
q what do you mean by qrs changesthe total amplitude of the qrs compared with exercise usually decreases near peak workload as well as the t-wave
q false positive st changes1 the slope of the pq-segment can help predict the magnitude of the influence of p-wave depolarization and thus help
q what is rounded st depressiona rounded st-segment depression pattern in the cm5 lead as well as in the other leads is common and is often