ECG Basics
This wave represents atrial depolarization.
What is the P wave?
A sinus rhythm with a rate less than 60 beats/minute.
What is sinus bradycardia?
This cardiac biomarker rises during both STEMI and NSTEMI.
What is troponin?
This diagnostic test evaluates heart structure and pumping function.
What is an echocardiogram?
Continuous blood pressure monitoring is obtained using this invasive device.
What is an arterial line?
This complex represents ventricular depolarization.
What is the QRS complex?
A sinus rhythm with a rate greater than 100 beats/minute.
What is sinus tachycardia?
Chest pain, dyspnea, diaphoresis, and nausea are classic symptoms of this condition.
What is acute coronary syndrome (ACS)?
Increased edema and sudden weight gain may indicate this.
What is fluid retention?
Altered mentation, cool skin, and decreased urine output indicate poor what?
What is perfusion?
This wave represents ventricular repolarization.
What is the T wave?
An irregularly irregular rhythm with no distinct P waves.
What is atrial fibrillation?
A STEMI is characterized by this ECG finding.
What is ST-segment elevation?
Crackles and shortness of breath may indicate fluid accumulation in these organs.
What are the lungs?
This type of shock occurs when poor myocardial contractility decreases cardiac output.
What is cardiogenic shock?
The first structure in the heart's conduction system to initiate an impulse.
What is the SA node?
The first thing a nurse should check when ventricular tachycardia is identified.
What is a pulse?
The priority treatment goal in STEMI patients.
What is rapid reperfusion/PCI?
Cardiac output is calculated using heart rate multiplied by this.
What is stroke volume?
A patient with ventricular fibrillation requires immediate CPR and this intervention.
What is defibrillation?
To estimate heart rate on a six-second strip, count the QRS complexes and multiply by this number.
What is 10?
This lethal rhythm has chaotic electrical activity and no effective cardiac output.
What is ventricular fibrillation?
True or False: NSTEMI is always a minor heart attack.
What is False?
Cardiomyopathy can eventually lead to this major cardiovascular disorder.
What is heart failure?
In complete heart block, these two chambers beat independently.
What are the atria and ventricles?
A telemetry monitor displays a wide-complex tachycardia at 180 beats/minute. The patient is pale and unresponsive.
What is check for a pulse and initiate the appropriate resuscitation algorithm immediately?