CET Practice Test with correct answers

Which of the following is the only calculating method available for both regular and irregular rhythms? - correct answer; The 6- Second method During a stress test, an EKG tech notices the patient appears to be hyperventilating. Which of the following is an appropriate course of action for the tech? - correct answer; Check the patient's respiratory rate. Checking the rate will allow the CET to confirm hyperventilation. Which of the following sensitivity settings would produce a calibration box that measures 10mm tall? - correct answer; A sensitivity setting of 1 Which of the following methods for calculating a patient's heart rate from the EKG is correct? - correct answer; Divide 1,500 by the number of small boxes between two R waves to calculate a full cardiac cycle. What is the correct order of a complete cardiac cycle in the normal heart? - correct answer; P wave, QRS complex, and T wave While performing a stress test, the patient complains of dizziness. After stopping the test, which of the following actions should the CET take first:? - correct answer; The CET should notify the physician immediately after stopping the test. Which of the following describes the correct electrode placement for lead V5? - correct answer; Anterior axillary line, 5th intercostal space. Calculate the heart rate in the tracing below using the 1500 method. 1500 / 22 - correct answer; 68/min The R-R interval on a patient's tracing had five large boxes. Which of the following is the patient's heart rate? - correct answer; The rate is calculated using the 300 method. 330/5 = 60