Paramedic Cardiology Unit Exam Review:
Fisdap
Understand the Concepts:
Acetylsalicylic Acid: aka - aspirin. It is an antiplatelet agent, nonnarcotic analgesic,
antipyretic
AHA Guidelines: The American Heart Association is a non-profit organization in the
United States that funds cardiovascular medical research, educates consumers on
healthy living and fosters appropriate cardiac care in an effort to reduce disability and
deaths caused by cardiovascular disease and stroke.
Angina Pectoris: Pain in the chest. In this condition coronary artery disease has
narrowed the arteries that supply the heart - Occurring when blood supply to the heart is
reduced and a portion of the heart muscle is not receiving enough oxygen.
Cardiac Cellular Action Potential Phases:
phase 0 - rapid depolarization - sodium moves into cell. The cell becomes positive.
phase 1- initial repolarization. sodium channels close, potassium channels open,
potassium moves out of cell.
phase 2 - the plateau phase of repolarization. The ST segment on the ECG. calcium
moves into cell while potassium moves out.
phase 3 - rapid repolarization. Fast potassium moves out of cell. the T wave on the ecg.
phase 4- returning to resting state
Cardiac electrical conduction system: The SA node is the pacemaker of the heart and is
located near the right atrium and sets the rate of the heart. When the SA node
discharges, the electrical impulse travels down the internodal pathways and pauses
briefly at the AV node near the AV junction. As the impulse travels through the internoald
pathways the atria are caused to depolarize and contract (1st upward deflection on the
the ECG - P wave). The AV node then collects the charge and delays transmitting it for
0.12 seconds which gives the atria time to empty the ventricles. (PR interval). When the
AV node discharges, the electrical charge travels through the bundle of His. The bundle
subsequently divides into the right and left bundle branches, which travel down the
septum and divide further into the purkinje fibers, which divide con=untless times, each
branch will ultimately innervate only a single cardiac muscle cell (QRS). The final notable
part of the ECG is a hump immediately after the QRS, which is the repolarization of the
ventricles (T wave).
Cerebral vascular accident/stroke: stroke or brain attack. A sudden change in
neurological function caused by an alteration in cerebral blood flow
This study source was downloaded by 100000850299972 from CourseHero.com on 08-11-2022 03:35:10 GMT -05:00
https://www.coursehero.com/file/64779718/Paramedic-Cardiology-Unit-Exam-Review/
Fisdap
Understand the Concepts:
Acetylsalicylic Acid: aka - aspirin. It is an antiplatelet agent, nonnarcotic analgesic,
antipyretic
AHA Guidelines: The American Heart Association is a non-profit organization in the
United States that funds cardiovascular medical research, educates consumers on
healthy living and fosters appropriate cardiac care in an effort to reduce disability and
deaths caused by cardiovascular disease and stroke.
Angina Pectoris: Pain in the chest. In this condition coronary artery disease has
narrowed the arteries that supply the heart - Occurring when blood supply to the heart is
reduced and a portion of the heart muscle is not receiving enough oxygen.
Cardiac Cellular Action Potential Phases:
phase 0 - rapid depolarization - sodium moves into cell. The cell becomes positive.
phase 1- initial repolarization. sodium channels close, potassium channels open,
potassium moves out of cell.
phase 2 - the plateau phase of repolarization. The ST segment on the ECG. calcium
moves into cell while potassium moves out.
phase 3 - rapid repolarization. Fast potassium moves out of cell. the T wave on the ecg.
phase 4- returning to resting state
Cardiac electrical conduction system: The SA node is the pacemaker of the heart and is
located near the right atrium and sets the rate of the heart. When the SA node
discharges, the electrical impulse travels down the internodal pathways and pauses
briefly at the AV node near the AV junction. As the impulse travels through the internoald
pathways the atria are caused to depolarize and contract (1st upward deflection on the
the ECG - P wave). The AV node then collects the charge and delays transmitting it for
0.12 seconds which gives the atria time to empty the ventricles. (PR interval). When the
AV node discharges, the electrical charge travels through the bundle of His. The bundle
subsequently divides into the right and left bundle branches, which travel down the
septum and divide further into the purkinje fibers, which divide con=untless times, each
branch will ultimately innervate only a single cardiac muscle cell (QRS). The final notable
part of the ECG is a hump immediately after the QRS, which is the repolarization of the
ventricles (T wave).
Cerebral vascular accident/stroke: stroke or brain attack. A sudden change in
neurological function caused by an alteration in cerebral blood flow
This study source was downloaded by 100000850299972 from CourseHero.com on 08-11-2022 03:35:10 GMT -05:00
https://www.coursehero.com/file/64779718/Paramedic-Cardiology-Unit-Exam-Review/
