Answers |2026 Updated Guaranteed Pass.
What is the standard number of leads in a EKG tracing - Answer -12
What are you feeling for in a pt's wrist to find their heart rate? - Answer -Radial Artery
When the heart is in diastolic State, what pacemaker releases an electrical pulse? - Answer -SA
node
What blood vessels contain a pulse - Answer -arteries
A full cycle of Atria in action is shown as what on the EKG tracing - Answer -PR interval
In cardiology, what does M.I. stand for? - Answer -myocardial infarction
(T/F) Normal Sinus rhythm is between 70/min and 120/mm - Answer -False
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What chamber of the heart has the thickest Myocardium - Answer -Left ventricle
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, (T/F) A patient that has fallen asleep will interfere with EKG tracing - Answer -False
(T/F) A Q wave is always negative - Answer -False
What Arrhythmia is associated with sawtooth waves between QRS complexes? - Answer -Atrial
Flutter
If U waves are shown on EKG tracing, what type of vitamin deficiency is present? - Answer -
Potassium
Upper chambers of the heart - Answer -atria
Affects both the atria and the ventricles by increasing heart rate conduction and irritability -
Answer -Sympathetic Nervous System
What is a positive holter? - Answer -one that has recorded abnormalities
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, What is a negative holter? - Answer -A negative holter will have no significant arrhythmias or ST
changes
Abbreviation for Myocardial infarction - Answer -M.I.
Infarction refers to what? - Answer -To the actual death of the myocardial cells.
Occurs when there is a decrease in the amount of blood flow to a section of the heart - Answer -
Ischemia
Electrical impulses go down the usual pathway but encounter blocks and delays - Answer -
conduction blocks
Electrical impulses originate from somewhere else other than the sinus node - Answer -Ectopic
Rhythms
Where electrical flow follows the usual conduction pathway is too fast, too slow, or irregular... -
Answer -Arrhythmias of Sinus Origin
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Normal Running Speed for an EKG Machine - Answer -25 mm/sec
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