Ncct Ecg Practice Test

NCCT ECG PRACTICE TEST Cardiology and ECG Questions 1. What would be considered a cardinal feature of sinus rhythm? ️ The P wave should always be upright in leads 1 and 2. 2. What is a small wave (similar to the P wave) that sometimes appears after the T wave, and is thought to represent late repolarization of the Purkinje fibers in the ventricles? ️ U wave 3. A disturbance of SA nodal function that results in a markedly variable rhythm is known as: ️ Sick sinus rhythm. 4. What term best describes a cardiac condition that demonstrates a sinus rate of 250 to 350 beats per minute? ️ Atrial fibrillation. 5. Which wave represents ventricle depolarization? ️ T wave. 6. Which of these ECG findings indicates a pulse greater than 100 beats per minute with at least three irregular beats in a row? ️ Ventricular tachycardia. 7. The P wave is indicative of: ️ Atrial depolarization. 8. What best describes this rhythm strip? ️ Premature atrial contraction with PVCs. 9. What best describes this rhythm strip? ️ Trigeminy PVCs. 10. What best describes this rhythm strip? ️ Sinus bradycardia. 11. What best describes this rhythm strip? ️ Isolated PVC. 12. Diastole: ️ Occurs when the ventricle relaxes, and the blood flows into the atrium from the vena cava and pulmonary veins. 13. What is the LEAST likely to cause under-sensing in the ECG? ️ Exposure to interference. 14. Drug therapy, hyperkalemia, Twiddler's syndrome, and battery depletion can all be occasional causes of ECG ________. ️ Over-sensing. 15. The membranous sac filled with serous fluid that encloses the heart and the roots of the aorta and other large blood vessels is known as the: ️ Pericardium. 16. The abbreviation AF is most commonly used for: ️ Atrial fibrillation. 17. Fibrillation: ️ Is the rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart. 18. Hypoxia: ️ Is the medical term that means "a shortage, but not an absence, of oxygen in the body." 19. What is not a feature of a normal P wave? ️ It should be upright in the aVR. 20. Aortic Valve Stenosis (AVS) is the narrowing of the heart valve between the: ️ Left ventricle and aorta. 21. The most common cardiac stress test consists of: ️ An electrocardiogram on an exercising patient. 22. The word element HEMA means: ️ Blood. 23. The blocking of a blood vessel by a clot or other substance in the bloodstream is called: ️ Embolism. 24. The medical term for painful or difficult breathing is: ️ Dyspnea. 25. A sinus rhythm with a resting heart rate of 40 bpm or less is known as: ️ Bradycardia. 26. In hooking up the electrodes to the patient's chest, V6 goes: ️ In the mid-axillary horizontal to lead V4. pain level ️which of these is not considered part of the typical recording of vital signs ballistocardiogram ️a procedure that the physician with a graphic representation of the recording of the movement of the body generated with each heart beat is called R ️to calculate the rate, look first at the ____ wave 2 ️there are _____ ventricles in the heart broken sensors or loose leads ️baseline interruption seen on an ECG tracing is most likely the result of what PVD ️what is a condition that can result when arteries outside the heart (e.g legs) become narrowed with plaque? action potential ️when human muscles are excited, an electrical signal called an _____ is produced and spreads to the rest of the muscle cell, eventually resulting in a mechanical contraction QRS complex ️in electrocardiograpghy , measurements of leads 1, 2, and 3 provide the duration and magnitude of the ________ third- degree heart block ️in what condition do the atria and ventricles appears to be beating independently? cause AC interference ️an extension cord running under a patient table is likely to helping tissue to take up oxygen, expulsion of carbon dioxide, expulsion of waste ️what are the functions of capillaries