ELM 9.1

Question 1

risk factors of dysrhythmia

Answer 1

excessive alcohol consumption
smoking
genetics
congenital abnormailities
obesity
existing damage to the heart

Question 2

wht order do the channels activate
sodium
calcium
potassium

Answer 2

sodium
calcium
potassium

Question 3

Arrhythmias could be seen as an ______ of dysrhythmias

Answer 3

extreme version

Question 4

what are arythmias and dysrhytmias ?

Answer 4

disruption o the normal electrical conduction of the heart

Question 5

dysrythmic mechanisms
ectopic pacemakers

dlayed after depolarization

re-entry circuits

congenital abnormalities

heart block

Answer 5

cardiac tissue other than SA node initiates heart beats

build up of calcium in cells leads to a train of action potentials

tissue damage / abnormality causes action potentials to travel in circles

additional conducting pathways between atria and ventricles

damage to conducting pathways disrupts atrial-ventricular signaling

Question 6

re-entry circuits are caused by

Answer 6

electrical signals go round and round in circles
occur due to damage or abnomalities in conduction
local, nodal, global