Module 9 - EKG and Cardiovascular Testing Quiz

Which of the following positions is best for performing an EKG?

Supine

a supine position occurs when a patient is lying on their back. This is the best position for performing an EKG.

Which of the following actions should be taken for a patient experiencing a somatic tremor artifact on their electrocardiogram due to uncontrolled muscle movement?

Have the patient lay their hands palms down under their buttocks to reduce the muscle movements.

if patient have conditions that lead to uncontrolled muscle movement have them lay on their hands with the palms down under their buttocks to reduce somatic interference

Which of the following places should the electrode for lead V2 be placed?

The left side of the sternum, the fourth intercostal space

the electrode for lead V2 is placed on the left side of the sternum, the fourth intercostal space.

Which of the following places should the black limb lead be placed?

The left arm

the black limb lead goes on the left arm

Which of the following actions can cause a wandering baseline artifact?

A patient with lotion or cream on their skin

Cleaning the skin prior to touching the electrodes and instructing the patient to avoid using creams and lotions will assist in reducing a wandering baseline

Which of the following artifacts is a result of patient movement with breathing?

Wandering Baseline

Movement with patient breathing is the most common cause of wondering baseline

A medical assistant notices, frequent regular spikes on the EKG tracing. Which of the following actions should the assistant take?

Turn off nearby electrical equipment

Frequent regular spikes are seen with 60-cycle interference caused by nearby electrical equipment.

Which of the following demonstrates how somatic tremors can differentiate from 60-cycle inference?

Somatic tremors produce irregular spikes

medical tremors are caused by involuntary muscle movement and produce irregular spikes and artifacts. 60-cycle interference is characterized by regular spikes on the EKG tracing.

Which of the following statements made by medical assistant demonstrates an understanding of patient privacy?

"I'll cover your abdomen with a blanket as soon as I'm done placing the EKG electrodes"

The patient should remove clothing above the waist to the chest electrodes can be placed in the correct location. The patient should be covered as soon as the leaves are atta

Which of the following is the correct number of electrodes needed to record a 12-lead EKG?

10

10 electrons are needed to record a 12-lead EKG

Which of the following serves as a conductor of impulses during an EKG?

Electrolyte gel

Each electrode is impregnated with an electrolyte gel that serves as a conductor of impulses. The electrode doesn't come off with an electrolyte gel already in it, a gel can be applied before applying the electrode to the patient.

While preparing to record an EKG, you notice there's a break in the baseline and the screen displays flat lines across all leads. Which of the following do you suspect?

There is a disconnected lead wire

The most common cause of an interrupted baseline is a detached lead wire.

Which of the following is the duration of a standard calibration box?

0.2 Seconds

The duration of a standard calibration box is 0.2 seconds

Which of the following is the height of a standard calibration box?

10mm

The standard calibration box is 10 mm tall

A medical assistant is preparing to record an EKG on a patient who has a history of pulmonary disease. The patient reports shortness of breath after line on the exam table. Which of the following actions should the medical assistant take?

Elevate the head of the bed to 45 degrees (semi-Fowlers position)

Elevating the head of the bed will take pressure off of the diaphragm and ease breathing

While assisting with a cardiac stress test time are the medical assistant observes the patient's blood pressure reading is 204 over1 08. Which of the following actions should the assistant take?

Stop the procedure and notify the provider immediately

The assistant should immediately notify the provider of the elevated blood pressure reading

Which of the following differentiates sinuses tachycardia from ventricular tachycardia?

Sinus tachycardia has narrow QRS complexes

Sinus tachycardia has narrow QRS complexes. Ventricular tachycardia has wide QRS complexes.

Which of the following dysrhythmias result in continuous fibrillary waves between the QRS complexes?

Atrial fibrillation

Atrial fibrillation is characterized by an irregular rhythm absence of P waves, and narrow QRS complexes.

Which of the following waves represents arterial depolarization?

P wave

The P wave represents atrial depolarization

Which of the following places it should be electrode for lead V4 replaced?

The left side of the sternum, fifth intercostal space, midclavicular line

Lead V4 is placed on the left side of the sternum fifth intercostal space at the midclavicular line.