Nu424 EKG, IV fluids, Hemodynamics prepu

The staff educator is presenting a class on cardiac dysrhythmias. How would the educator describe the characteristic pattern of the atrial waves in atrial flutter? Sinusoidal Triangular Sawtooth Square

Sawtooth

A monitor technician on the telemetry unit asks a charge nurse why every client whose monitor shows atrial fibrillation is receiving warfarin. Which response by the charge nurse is best? "It's just a coincidence; most clients with atrial fibrillation don't receive warfarin." "Warfarin controls heart rate in the client with atrial fibrillation." "Warfarin prevents atrial fibrillation from progressing to a lethal arrhythmia." "Warfarin prevents clot formation in the atria of clients with atrial fibrillation."

"Warfarin prevents clot formation in the atria of clients with atrial fibrillation."

A nurse provides evening care for a client wearing a continuous telemetry monitor. While the nurse is giving the client a back rub, the client 's monitor alarm sounds and the nurse notes a flat line on the bedside monitor system. What is the nurse's first response? Assess the client and monitor leads. Administer a pericardial thump. Call for assistance and begin CPR. Call a code and obtain the crash cart.

Assess the client and monitor leads.

A nurse provides morning care for a client in the intensive care unit (ICU). Suddenly, the bedside monitor shows ventricular fibrillation and the client becomes unresponsive. After calling for assistance, what action should the nurse take next? Begin cardiopulmonary resuscitation Prepare for endotracheal intubation Provide electrical cardioversion Administer intravenous epinephrine

Begin cardiopulmonary resuscitation

A nurse is caring for a client who has been admitted to have a cardioverter defibrillator implanted. The nurse knows that implanted cardioverter defibrillators are used in which clients? Clients with recurrent life-threatening bradycardias Clients with sinus tachycardia Clients with ventricular bradycardia Clients with recurrent life-threatening tachydysrhythmias

Clients with recurrent life-threatening tachydysrhythmias

After evaluating a client for hypertension, a health care provider orders atenolol, 50 mg P.O. daily. Which therapeutic effect should atenolol have in treating hypertension? Decreased cardiac output and decreased systolic and diastolic blood pressure Decreased blood pressure with reflex tachycardia Increased cardiac output and increased systolic and diastolic blood pressure Decreased peripheral vascular resistance

Decreased cardiac output and decreased systolic and diastolic blood pressure

A nurse is caring for a client who is exhibiting ventricular tachycardia (VT). Because the client is pulseless, the nurse should prepare for what intervention? Defibrillation ECG monitoring Implantation of a cardioverter defibrillator Angioplasty

Defribrillation

The nurse is caring for a client who has just been diagnosed with sinus bradycardia. The client asks the nurse to explain what sinus bradycardia is. What would be the nurse's best explanation? In many clients a heart rate slower than 60 beats per minute is considered to slow to maintain an adequate cardiac output. Sinus bradycardia means your heart is not beating fast enough to keep you alive. Sinus bradycardia is nothing to worry about. In many clients a heart rate slower than 70 beats per minute is considered to slow to maintain an adequate cardiac output.

In many clients a heart rate slower than 60 beats per minute is considered too slow to maintain an adequate cardiac output

To evaluate a client's atrial depolarization, the nurse observes which part of the electrocardiogram waveform? P wave PR interval QRS complex T wave

P wave

Which ECG waveform characterizes conduction of an electrical impulse through the left ventricle? P wave QRS complex PR interval QT interval

QRS complex

The nurse is caring for a client who has had an ECG. The nurse notes that leads I, II, and III differ from one another on the cardiac rhythm strip. How should the nurse best respond? Recognize that the view of the electrical current changes in relation to the lead placement. Recognize that the electrophysiological conduction of the heart differs with lead placement. Inform the technician that the ECG equipment has malfunctioned. Inform the physician that the client is experiencing a new onset of dysrhythmia.

Recognize that the view of the electrical current changes in relation to the lead placement.

The nurse is teaching a beginning EKG class to staff nurses. As the nurse begins to discuss the parts of the EKG complex, one of the students asks what the normal order of conduction through the heart is. What order does the nurse describe? Sinoatrial (SA) node, atrioventricular (AV) node, bundle of His, right and left bundle branches, and the Purkinje fibers AV node, SA node, bundle of His, right and left bundle branches, and the Purkinje fibers SA node, AV node, right and left bundle branches, bundle of His, and the Purkinje fibers SA node, AV node, bundle of His, the Purkinje fibers, and the right and left bundle branches

Sinoatrial (SA) node, atrioventricular (AV) node, bundle of His, right and left bundle branches, and the Purkinje fibers

The nurse is analyzing a rhythm strip. What component of the ECG corresponds to the resting state of the client's heart? P wave T wave U wave QRS complex

T wave

Which of the following medication classifications is more likely to be expected when the nurse is caring for a client with atrial fibrillation? Diuretic Anticoagulant Antihypertensive Potassium supplement

anticoagulant

A client presents to the emergency department via ambulance with a heart rate of 210 beats/minute and a sawtooth waveform pattern per cardiac monitor. The nurse is most correct to alert the medical team of the presence of a client with which disorder? Asystole Premature ventricular contraction Atrial flutter Ventricular fibrillation

atrial flutter

The nurse is assessing a client with symptomatic bradycardia. What medication does the nurse anticipate will be ordered by the healthcare provider to treat the bradycardia? atropine lidocaine diltiazem adenosine

atropine

The nurse witnesses a client experiencing ventricular fibrillation. What is the nurse's priority action? defibrillation cardioversion IV bolus of atropine IV bolus of dobutamine

defibrillation

A nurse is caring for a client who has premature ventricular contractions. What sign would the nurse assess in this client? fluttering/heart skipping nausea hypotension fever

fluttering/heart skipping

The health care provider prescribes esmolol for a client with supraventricular tachycardia. During esmolol therapy, what should the nurse monitor? body temperature. heart rate and blood pressure. ocular pressure. cerebral perfusion pressure.

heart rate and blood pressure

Which nursing intervention must a nurse perform when administering prescribed vasopressors to a client with a cardiac dysrhythmia? Keep the client flat for one hour after administration Administer every five minutes during cardiac resuscitation Document heart rate before and after administration Monitor vital signs and cardiac rhythm

monitor vital signs and cardiac rhythm

The client has just been diagnosed with a dysrhythmia. The client asks the nurse to explain normal sinus rhythm. What would the nurse explain is the characteristic of normal sinus rhythm? Heart rate between 60 and 150 beats/minute. Impulse travels to the atrioventricular (AV) node in 0.15 to 0.5 second. The ventricles depolarize in 0.5 second or less. The sinoatrial (SA) node initiates the impulse.

the sinoatrial (SA) node initiates the impulse