EKG

which of the following ekg findings differentiates idioventricular rhythm from junctional rhythm? A. Sinus Tachycardia B. Sinus Rhythm C. First-Degree Heart Block D. accelerated idioventricular rhythm has a wide QRS complex

D. accelerated idioventricular rhythm has a wide QRS complex

How do impulses travel directly from the SA node to the AV node? A. Via the atrioventricular muscles B. Via the purkinje fibers C. Via the bundle branches D. Via the internodal pathways

D. Via the internodal pathways

When does atrial systole occur in the heart? A. When blood is ejected into the aorta B. When the atria are relaxing C. When the ventricles are contracting D. When the atria are contracting

D. When the atria are contracting

An ekg technician is providing instructions to a patient who is to wear a cardiac event monitor at home. which of the following statements by the patient indicates an understanding of the instructions? A. "if the batteries fall, i will replace them myself" B. I will throw it away C. i will bring it back to you to fix D. If the batteries fall out, I will take it and return the system

A. "if the batteries fall, i will replace them myself"

Which of the following is the correct placement for V1 electrodes? A. 4th intercostal space, right of the sternum. B. 4th intercostal space, left of the sternum. C. 5th intercostal space at the left anterior axillary line. D. 5th intercostal space at the left of midaxillary line.

A. 4th intercostal space, right of the sternum.

Which of the following are appropriate to communicate with the patient during and after the ECG? Select all that apply. A. Remind them they can continue to breath normally B. Inform the patient to lie still and avoid moving C. Ask them to breathe as shallowly and as little as possible D. Check if the patient is comfortable

A. Remind them they can continue to breath normally B. Inform the patient to lie still and avoid moving D. Check if the patient is comfortable

Which of the following locations is the white wire connected? A. Right arm B. Left arm C. Right leg D. Left leg

A. Right arm

An ekg technician is preparing to obtain a patients blood pressure reading. the patient reports jogging to the facility "to get some excercise". which of the following actions should the technician take? A. the technician should have the patient sit quietly for at least 5 min before taking the patients blood pressure B. the technician should have the patient sit quietly for at least 25 min before taking the patients blood pressure C. Ask the patient to leave D. the technician should have the patient sit quietly for at least 15 min before taking the patients blood pressure

A. the technician should have the patient sit quietly for at least 5 min before taking the patients blood pressure

What are some common causes of ECG interference or inaccurate tracings? ( Select all that apply) A. The wires/nodes/leads were not attached properly. B. The patient fidgeted/moved around too much. C. The patient was not breathing normally. D There was cell phone interference.

All of the above

An ekg technician should recognize that which of the following blood pressure readings is within the exoected reference range for an adolescent patient? A. 180/86 B. 98/78 C. 122/90 D. 150/92

B. 98/78

True or False. Placement of the electrodes with tabs point toward the head allows for the lead wire to follow the contour of the body, reducing the tension placed on them and the likelihood of crimping. A. True B. False

B. False

Which of the following symptoms does not warrant an order for EKG?? A. Fainting B. Headache C. Shortness of breath D. Dizziness

B. Headache

Which of the following options is a correct chest electrode placement? A. V1 electrode is placed on the 4th intercostal space, left of the sternum. B. V3 electrode is placed midway between V2 and V4 on the 5th rib C. V2 electrode is placed on the 4th intercostal space, right of the sternum. D. V6 electrode is place on the 5th intercostal space at the junction of the left midclavicular line

B. V3 electrode is placed midway between V2 and V4 on the 5th rib

which of the following artifacts can appear as drifting away from the center on the ekg tracing? A. Loose lead B. wandering baseline C. Muscle tremor artifact. D. Electromagnetic interference (EMI)

B. wandering baseline

How many leads are there on a standard electrocardiogram? A. 5 B. 10 C. 12 D. 15

C. 12

Which of the following terms refers to a congenital narrowing of the aortic arch? A. Occlusion B. Ischemia C. Coarctation D. Pericarditis

C. Coarctation

Which of the following terms describes an abnormality in the rhythm of the heartbeat? A. Anticoagulant B. Cardiac output C. Dysrhythmia D. Inflammation

C. Dysrhythmia

Which of the following color is the V5 chest or precordial lead? A. Red B. Blue C. Orange D. Yellow

C. Orange

All of the following are guidelines for electrode use and maintenance, except: A. Check the expiration date on the electrode pouch before use. B. Reseal the electrode pouch and place it in a plastic bag after use. C. Store electrodes in a refrigerator. D. Do not use dried out electrodes.

C. Store electrodes in a refrigerator

Which of the following refers to the expected effect that exercise has on the heart? A. Fibrillation B. Bradycardia C. Tachycardia D. Flutter

C. Tachycardia

Which of the following letter denotes the chest or precordial leads? A. the letter C with a number 1 through 6 B. the letter B with a number 1 through 6 C. the letter V with a number 1 through 6 D. the letter W with a number 1 through 6

C. the letter V with a number 1 through 6

Which of the following is the correct placement for V4 electrodes? A. 5th intercostal space at the left of midaxillary line. B. 4th intercostal space, right of the sternum. C. 5th intercostal space at the left anterior axillary line. D. 5th intercostal space at the junction of the left midclavicular line.

D. 5th intercostal space at the junction of the left midclavicular line.

Which term describes one complete sequence of heart contraction and relaxation? A. Systole B. Cardiac output C. Diastole D. Cardiac cycle

D. Cardiac cycle

Which of the following location is the red wire connected? A. Right arm B. Left arm C. Right leg D. Left leg

D. Left leg

Which of the following refers to the expected variations in heart rate that are caused by changes in the rate and depth of breathing? A. Stent B. Cyanosis C. Murmur D. Sinus arrhythmia

D. Sinus arrhythmia

Which of the following best describes electrocardiogram? A. A test that provides a narrative and graphic representation of breathing capacity. B. A test that provides information about the amount of occlusion in the coronary artery. C. Measure the amount of air exhaled upon forceful exhalation. D. Used to record electrical activity of the heart.

D. Used to record electrical activity of the heart