Study guides, Class notes & Summaries

EKG Interpretation (HCA) Answered 100% Correctly 2024/2025 Atrial Rhythms • Are not classic “P-wave” rhythms, if equal/consistent/nonvarying P-waves are easily identified then the rhythm is NOT atrial in origin • Atrial rhythms are routinely fast • Ventricular rates can be controlled (<100) or uncontrolled (>100) • Ventricular responses and rates can reach up to 220 – 240 ppm • Ventricular regularity can be regular or irregular, depending on the rhythm: - AFib...

EKG Interpretation Epidemiology of dysrhythmia In 2003, dysrhythmias caused or contributed to 479,000 deaths. The conduction system is susceptible to damage by heart disease. Ischemia can cause tissues of the conduction system to be irritable or excitable (extra beats). Ischemia can also cause tissues to block electrical impulses. This effects hemodynamics and the hearts ability to perfuse the tissues. Note that some dysrhythmias are benign, but we’re focusing today on the lethal ones.

An EKG tech should recognize that pt. Are restricted from performing which of the following activities while wearing a holter monitor? A) Yoga B) Smoking C) Sex D) Showering - ANSWER D An EKG tech is preparing a pt for an exercise stress test. Which of the following leads should the tech place on the right lower side of the anterior torso? A) Lead V1 B) Lead V6 C) Lead RA D) Lead RL - ANSWER D A thin spike before the P wave indicates that a pacemaker has been implanted to pace which...

EKG Final Exam Review Rated A+ How can cardiac output be calculated? Stroke volume multiplied by heart rate Briefly explain the Excitability properties of cardiac cells. Ability of the cells to respond to electrical stimulation What node is the natural pacemaker that generates 60-100 bpm? Sino Arial (SA) Node The EKG Technician would place how many leads to the chest and how many leads to the limb to obtain a 12 lead EKG? 6 electrodes to the chest and 4 electrodes to the limbs Lead 3 is...

EKG Questions And Answers Graded A+ what is the corrected adjusted standardization mark on EKG? Ans- 10mm per second what is standardization paper speed? Ans- 25 mm per second In lead 1 activity of the heart is being measured from where to where? Ans- right arm to left arm what part of the EKG show ventricular depolarization? Ans- QRS complex where is V 2 located? Ans- the 4th intercostal space on the sternum If the SA node stop working, what will take its place? Ans- The AV node etc Elec...

EKG Final Exam Mid 2023 Graded A Which atrial dysrhythmia has capital F waves and a classic sawtooth or picket fence appearance? AnsAtrial flutter What is the term for PVCs that all have a similar shape on a tracing? Ans- Unifocal PVCs What causes STEMI? Ans- Complete occlusion of a coronary artery Frequently, for infants or children with very fast heart rates, you will need to adjust the paper speed to _____. Ans- 50 mm/sec What rhythm causes the atria to quiver, similar to a bowl of Je...