Cardiovascular System Quiz-3

What is the correct sequence for normal electrical impulse movement through the cardiac conduction system?

• Purkinje fibers, AV node, bundle of His, SA node

• Pulmonary veins, left atrium, left ventricle, aorta

• SA node, AV node, bundle of His, Purkinje fibers

• Vena cava, right atrium, right ventricle, pulmonary artery

In pulseless ventricular tachycardia, what is the first choice of treatment?

• Synchronized cardioversion

• Pacemaker

• Defibrillation

• Antiarrhythmic medication

If a patient has a radial pulse of 58 bpm, what is the appropriate term for documenting this rhythm?

• Normal

• Asystole

• Bradycardia

• Tachycardia

What instruction should the nurse give the patient regarding pacemaker care?

• You will need to be on bedrest for 48 hours

• Avoid microwaves

• You may have an MRI

• Take your radial pulse daily

Answer explanation

The nurse should instruct the patient to avoid microwaves to prevent interference with the pacemaker function.

Which term accurately describes an arrhythmia caused by a dysfunction of the sinus node?

• Atrial flutter

• Ventricular tachycardia

• Sinus tachycardia

• Sinus bradycardia

What is the characteristic of atrial fibrillation on an ECG?

• Identifiable P wave

• Rhythm is regular

• QRS complex usually uniform in shape

• Atrial rate is 300 to 600 bpm

What is the cause of ventricular fibrillation?

• Coronary artery disease

• Hypomagnesemia

• Electrocution

• Hyperkalemia

What is the management for ventricular tachycardia if pulses are absent?

• Cardiopulmonary resuscitation (CPR) and immediate defibrillation

• Magnesium I.V

• Beta-adrenergic blockers

• IV atropine

What is the primary goal of cardioversion?

• To decrease the heart's workload

• To regulate the heartbeat

• To stop certain very fast arrhythmias

• To prevent asystole

What is the nursing diagnosis related to decreased cardiac output?

• Anxiety related to fear of death

• Knowledge Deficit regarding disease & its treatment

• Thromboembolism

• Decreased cardiac output