CRAT Exam 1 With 100% Correct Answers 2024 Update

CRAT Exam 1 With 100% Correct Answers 2024 UpdateCRAT Exam 1 With 100% Correct Answers 2024 Update 1. When the technician is performing a 12 lead EKG, how many electrodes are used to record the 12 views of the heart? A. 8 B. 10 C. 12 D. 24 - Correct Answer-B.10 2. Segments and waveforms on an ECG would include all but which of the following? A. PR interval B. QRS complex C. TB wave D. QT interval - Correct Answer-C. TB wave 3. In measuring ventricular regularity if there is no R wave what could be measured instead? A. P wave B. Q wave C. The Q and S wave junction D. S wave - Correct Answer-Q and S wave junction 4. The parasympathetic nervous system would do which of the following? A. Slows is the patient's heart rate B. enhanced digestion C. Decreases the patient's blood pressure D. All of the above - Correct Answer-D. All of the above 5. Which of the following protects the ventricles from the 400 through 600 erratic atrial impulses that occur during the atrial fibrillation? A. SA node B. Muscle tissue around the AV node C. AV node D. Muscle tissue on the SA node - Correct Answer-C. AV node 6. Generally, there is no treatment necessary for bradycardia unless the patient shows symptoms of which of the following? A. Decreased cardiac output B. Excessive output C. Non-existing cardiac output D. All of the above - Correct Answer-A. Decreasing cardiac output 7. Which of the following types of permanent pacing requires cardiac surgery to place wires? A. Transcutaneous pacing B. Epicardial pacing C. Transvenous pacing D. Defibrillator pacing - Correct Answer-B. Epicardial pacing 8. If the contact on an electrode is not conducting well or the placement is wrong which of the following could occur? A. Arrhythmia B. Electric shock C. Bradycardia D.wandering baseline - Correct Answer-D. Wandering baseline 9. Which of the following is most common ECG electrode misconnection or reversal? A. Arm/leg reversal B. Right arm/left arm C. Left leg/right leg D. Left arm/left leg - Correct Answer-B. Right arm, left arm 10. When interpreting a cardiac rhythm strip, all of the following would be considered steps except? A. Checking the position of the P wave B. Determining the rate of the rhythm and if it's normal or abnormal C. Determining the age of the patient D. Evaluating if the rhythm is regular or irregular - Correct Answer-C. Determining the patient's age 11. Accelerated junctional rhythm is only significant if the patient is showing signs of which of the following? A. Decreasing cardiac output B. Sinus arrest C. Increasing urine output D. Hypertension - Correct Answer-A . Decreasing cardiac output 12. Sinus rhythm is the pacemaker action from which of the following? A. Junctional tissue B. SA node C. Purkinje fibers D. AV node - Correct Answer-B. SA node 13. Which of the following is a typical maximum length of a PR interval? A. .12 sec B. .20 sec C. .24 sec D. .30sec - Correct Answer-B. .20 sec 14. A pediatric patient will have shorter PR interval which of the following reasons? A. Children have lower metabolic needs B. Children have smaller ventricular size C. Children's heartbeats slower D. Children's PR interval's are measured differently - Correct Answer-B. Children have a smaller ventricular size 15. Which of the following is represented in the above rhythm strip? A. Atrial tachycardia B. Sinus rhythm C. Junctional tachycardia D. Ventricular fibrillation - Correct Answer-C. Junctional tachycardia 16. Which of the following or artifact results from electrical equipment, mobile telephones, and electric power lines? A. Somatic Tremors B. Alternating current interference C. Electromagnetic interference D. Wandering baseline - Correct Answer-C. Electromagnetic interference 17. And the 1500 method of calculating atrial rates, The technician should count which of the following? A. P-wave B. Squares between two waves C. R waves D. Squares between two consecutive R waves - Correct Answer-D. Squares between two consecutive P waves 18. Resulting from the blood volume in the ventricles at the end of the diastole the passive stretching of the muscle fibers in the ventricle is called which of the following? A. Systole B. Preload C. After load D. Contractility - Correct Answer-B. Preload 19. Which of the following would not be considered a patient area of education? A. Restoration of health B. Maintenance and promotions C. Coping with new illness D. Providing financial counseling - Correct Answer-D. Providing financial counseling 20. A. Beta- adrenergic blockers B. Digoxin