Evolve Dsyrhytmias Exam Questions With Verified Answers
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Course
Dysrhythmias
Institution
Dysrhythmias
Evolve Dsyrhytmias Exam Questions With
Verified Answers
Defibrillation is indicated for which dysrhythmia? - answerVentricular fibrillation
Defibrillation is always indicated in the treatment of ventricular fibrillation. Pacemakers are the
treatment of choice for third-degree heart block. Drug ...
EXAM STUDY MATERIALS July 23, 2024 4:26 PM Evolve Dsyrhytmias Exam Questions With Verified Answers Defibrillation is indicated for which dysrhythmia? - answer✔✔Ventricular fibrillation Defib rillation is always indicated in the treatment of ventricular fibrillation. Pacemakers are the treatment of choice for third -degree heart block. Drug treatments normally are used in the treatment of uncontrolled atrial fibrillation and for ventricular tach ycardia with a pulse (if the patient is stable) The nurse reviews the following electrocardiogram (ECG) tracing. The nurse recognizes that the abnormal ECG finding is usually caused by what? - answer✔✔Myocardial ischemia Typical ECG changes that are seen in myocardial ischemia include ST segment depression and/or T wave inversion. Medications, fluid overload, and dehydration do not often affect the ST segment position on the ECG tracing. Typical ECG changes that are seen in myocardial ischemia include ST s egment depression and/or T wave inversion. Medications, fluid overload, and dehydration do not often affect the ST segment position on the ECG tracing. - answer✔✔Sinus tachycardia Sinus tachycardia inhibits the vagus nerve or stimulates the sympathetic ne rvous system. This causes an increase in the heart rate to about 101 beats to 200 beats per minute. The electrocardiographic study of sinus tachycardia shows a normal P wave preceding each QRS complex with normal time and duration. In atrial fibrillation, the P waves are chaotic and fibrillatory and the QRS complex is normal. The electrocardiographic study of ventricular fibrillation elicits the absence of P waves and the PR interval and QRS interval cannot be measured. In premature atrial contraction, ther e are distorted P waves in the ECG. The nurse notes artifact on a patient's telemetry monitor. Which factors contribute to artifact? - answer✔✔Excessive hair under the electrode pads One reason that artifact is seen on the monitor is when leads and electr odes are not secure. Electrode pads may not be secure if there is excessive hair under the pads, the skin is oily, or if diaphoresis is present EXAM STUDY MATERIALS July 23, 2024 4:26 PM The ECG monitor of a patient in the cardiac care unit after myocardial infarction (MI) indicates ventricular fib rillation. What should be the nurse's immediate action? - answer✔✔Perform cardiopulmonary resuscitation (CPR) Treatment consists of immediate initiation of CPR and advanced cardiac life support (ACLS) Which action does flecainide have on the heart? - answ er✔✔Decreases impulse conduction A patient in asystole is likely to receive which drug treatment? - answer✔✔Epinephrine and vasopressin Treatment of asystole consists of CPR with initiation of ACLS measures. These include definitive drug therapy with epin ephrine and/or vasopressin, and intubation. Lidocaine and amiodarone are used for premature ventricular contractions (PVCs). Digoxin and procainamide are used for ventricular rate control. β -adrenergic blockers are used to slow heart rate and dopamine is u sed to increase heart rate. The nurse assesses a patient and notes a temperature of 101.6° F. Which type of dysrhythmia is associated with a fever? Fibrillation Sinus tachycardia Sinus bradycardia Junctional tachycardia - answer✔✔Sinus tachycardia A fever may cause tachycardia with a decrease in cardiac output and hypotension. A patient has sought care following a syncopal episode of unknown etiology. The nurse anticipates that what will be included in the patient's treatment plan? A head -up tilt -test Intravenous (IV) β -adrenergic blocker Pacemaker insertion Antiplatelet therapy - answer✔✔A head -up tilt -test
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