Answers (A+ Guaranteed)
• Electrical ions responsible for depolarization and repolarization of the heart -
✓✓Sodium, calcium, and potassium
• Negative Deflection -✓✓the downward presentation of waveforms on the EKG
tracing that is located below the isoelectric line
• Postive Deflection -✓✓the portion of waveforms in an EKG tracing located
above the isoelectric line
• Biphasic Deflection -✓✓both positive and negative
• St Elevation -✓✓indicates myocardial infarction (STEMI)
• ST Depression -✓✓myocardial ischemia
• How much is one box on the ECG -✓✓0.04 sec
• SA Node -✓✓pacemaker of the heart
• AV Node -✓✓relays electrical impulses from atria into ventricles
• Purkinje fibers -✓✓fibers in the ventricles that transmit impulses to the right and
left ventricles, causing them to contract
• What do frequent PACs mean? -✓✓Can indicated stroke or higher mortality
• Treatment for asystole -✓✓CPR, epinephrine, atropine
• Treatment for Atrial fibrillation -✓✓Anticoagulation, rate control, cardioversion
• Treatment for Symptomatic Junctional Rhythm -✓✓Atropine
• Medication for V-Tach -✓✓Amiodarone