NURS 5354 EKG Questions With Complete Solutions
heart 4 chambers - (answer)Right and Left atrium & Right and Left ventricle
Perfusion to the various chambers of the heart is via - (answer)RCA & Left main descends into LAD (left
anterior descending artery)
RCA supplies blood to - (answer)RA, RV, SA (sinoatrial node) & AV (atrioventricular node)
LAD supplies blood to - (answer)L front side of the heart
L circumflex artery supplies - (answer)to left outer side as well as posterior side of the heart
Both the LAD & RCA supply blood to - (answer)the septum
Cardiac contraction happens when - (answer)depolarization of the heart
3 heart components which spread electrical currents - (answer)cardiac pacemaker cells, specialized
conduction tissue, & the heart muscle
Depolarization originates in - (answer)SA node & spreads through the R&L atrium which is followed by
atrial contraction. The impulse travels to AV node emerges and transmits through bundle of His, then
L&R bundle branches, and finally through the Purkinje fibers which facilitates activation of the
ventricular muscle
Purkinje Fibers - (answer)activate ventricular muscle
Only electrical conduction between the atria and ventricles (healthy heart) - (answer)AV node
, NURS 5354 EKG Questions With Complete Solutions
12-lead ECG - (answer)electric potentials generated by the heart and captures the electrical component
(depolarization & repolarization)
12 lead ECG electrical activity measured from - (answer)12 perspectives (leads) of the heart can be
evaluated through 2 electrical planes (vertical and horizontal). 4 extremity or limb leads and 6 precordial
or chest leads
Vertical plane provides info for leads - (answer)I, II, III, aVR, aVL, & aVF
Horizontal plane provides for leads - (answer)V1, V2, V3, V4, V5, & V6
Lateral leads are - (answer)Lead I, aVL, V5, and V6
Lateral leads represent - (answer)Left circumflex artery
Inferior leads are - (answer)Lead II, III, and aVF
Inferior leads represent - (answer)RCA
Anteroseptal leads - (answer)V1, V2, V3, and V4
Anteroseptal leads represent - (answer)LAD
Septal leads - (answer)V1 and V2. Represents LAD
Anterior leads - (answer)V3 and V4. Represents LAD
PQRST complex represents - (answer)depolarization and repolarization of the heart
heart 4 chambers - (answer)Right and Left atrium & Right and Left ventricle
Perfusion to the various chambers of the heart is via - (answer)RCA & Left main descends into LAD (left
anterior descending artery)
RCA supplies blood to - (answer)RA, RV, SA (sinoatrial node) & AV (atrioventricular node)
LAD supplies blood to - (answer)L front side of the heart
L circumflex artery supplies - (answer)to left outer side as well as posterior side of the heart
Both the LAD & RCA supply blood to - (answer)the septum
Cardiac contraction happens when - (answer)depolarization of the heart
3 heart components which spread electrical currents - (answer)cardiac pacemaker cells, specialized
conduction tissue, & the heart muscle
Depolarization originates in - (answer)SA node & spreads through the R&L atrium which is followed by
atrial contraction. The impulse travels to AV node emerges and transmits through bundle of His, then
L&R bundle branches, and finally through the Purkinje fibers which facilitates activation of the
ventricular muscle
Purkinje Fibers - (answer)activate ventricular muscle
Only electrical conduction between the atria and ventricles (healthy heart) - (answer)AV node
, NURS 5354 EKG Questions With Complete Solutions
12-lead ECG - (answer)electric potentials generated by the heart and captures the electrical component
(depolarization & repolarization)
12 lead ECG electrical activity measured from - (answer)12 perspectives (leads) of the heart can be
evaluated through 2 electrical planes (vertical and horizontal). 4 extremity or limb leads and 6 precordial
or chest leads
Vertical plane provides info for leads - (answer)I, II, III, aVR, aVL, & aVF
Horizontal plane provides for leads - (answer)V1, V2, V3, V4, V5, & V6
Lateral leads are - (answer)Lead I, aVL, V5, and V6
Lateral leads represent - (answer)Left circumflex artery
Inferior leads are - (answer)Lead II, III, and aVF
Inferior leads represent - (answer)RCA
Anteroseptal leads - (answer)V1, V2, V3, and V4
Anteroseptal leads represent - (answer)LAD
Septal leads - (answer)V1 and V2. Represents LAD
Anterior leads - (answer)V3 and V4. Represents LAD
PQRST complex represents - (answer)depolarization and repolarization of the heart
