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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
q what do you mean by st hystersisansthe rate of recovery of st depression has been recognized as a measure of ischaemia severity for many years when
q what is st depression with long diastolic fillingfor the person with a slow heart rate and a long period of a diastole after a premature
what is intermittent st depression ansseveral patients progress from variable st-segment depression often associated with respiration to the classic
q st-segment depression after hyperventilationpatients with abnormal autonomic drive have demonstrated st-segment depression after
q what is st heart rate indexto calculate the index the maximum st depression is divided by the delta heart rate difference between the resting and