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Cardio Review Quiz
| Question | Answer |
|---|---|
| What wave on and ECG represents depolarization of the atriums? | P wave |
| When it comes to heart blocks, if the R is far from the P, then you have a: | First degree |
| When the cardiac contractile cell starts to repolarize, what ion is leaving the cell membrane? | Potassium |
| You are attempting to decipher an ECG that presents with no discernible P waves and is totally irregular. This most likely describes which of the following rhythms? | Atrial fibrillation |
| When it comes to heart blocks, if Ps and Qs don’t agree, then you have a: | Third degree |
| A sinus rhythm presents with unifocal PVC’s that occur every third beat. These PVC’s would be classified as: | Trigeminy PVC’s |
| If the SA node was to initiate an electrical impulse, and it traveled through the atriums via the the normal pathways, this would create what type of P wave in lead I? | Upright |
| Opening of what channels in the autorhythmic cells causes the cell to depolarize? | Calcium |
| Using the below picture of the cardiac contractile cell action potential, when is calcium entering the cell? | Phase two |
| What wave on an ECG represents repolarization of the ventricles? | T wave |
| A premature ectopic beat that presents with an upright P wave and a narrow QRS complex would be a: | PAC |
| When obtaining a 12 lead ECG, where do you place V5? | Fifth ICS at the anterior axillary line |
| An ECG rhythm in which the SA node fails to initiate an impulse, there is only one dropped beat, and the cadence is thrown off when it starts back up again is known as: | Sinus pause |
| An ECG rhythm that present with P waves and QRS complexes that don’t appear to coincide with each other is classified as a: | Third degree |
| An ECG rhythm that presents with a ventricular rate of 30-40 beats per minute, has a totally irregular cadence, has no discernible P waves, and has narrow QRS complexes is classified as: | AFib with SVR |
| A medication that is classified as a “parasympathomimetic” will have what type of effect on the body? | It should cause an increase in parasympathetic nervous system |
| Blood travels from the lungs to the left atrium via the: | Pulmonary veins |
| An ECG rhythm that presents with a rate of 118 beats per minute, a slightly irregular cadence, and P waves that have three or more different morphologies is classified as: | Multifocal atrial tachycardia |
| An unconscious patient presents with an ECG that has P waves with a regular cadence, but there are absolutely no QRS complexes. This rhythm would be classified as: | P wave asystole |
| Leads V5 and V6 look at what part of the heart? | Lower left lateral |
| What medication is the preferred anti arrhythmic for the treatment of Torsades de Pointes? | Mag sulfate |
| What is considered the normal max amplitude of a P wave in lead II? | 2.5 mm |
| Leads II, III, aVF look at what part of the heart? | Inferior |
| When obtaining a 12 lead ECG, where do you place V4? | Fifth ICS at the midclavicular line |
| A patient presents with an artificial internal pacemaker that fires a pacer spike only before the P wave, that is then followed by a normal QRS complex. This type of paced rhythm is known as: | Atrial paced rhythm |
| Which of the following most correctly illustrates what a normal T wave should look like? | It should be slightly asymmetric with a steeper downslope than its upslope |
| Leads I and aVL look at what part of the heart? | Higher left lateral |
| Blood travels from the right ventricle to the lungs via the: | Pulmonary artery |
| A premature ectopic beat that presents with no P wave and a narrow QRS complex would be a: | PJC |
| An ECG rhythm that presents with a ventricular rate of 170-190bpm, has a totally irregular cadence, and no discernible P waves, and has narrow QRS complexes is classified as: | AFib with RVR |
| An ECG rhythm is which the SA node fails to initiate an impulse, there is multiple dropped beats, and the cadence is thrown off when it starts back up again is known as: | Sinus arrest |
| According to Einthoven’s Triangle, in lead II, the positive electrode is at the: | Left leg |
| A medication that is classified as a “sympatholytic” will have what type of effects on the body? | It should cause a decrease in sympathetic nervous system |
| The accessory pathway associated with WPW is known as the: | Bundle of kent |
| What channels in the cardiac contractile cells bring about depolarization? | Sodium |
| According to Einthoven’s Triangle, in lead III, the negative electrode is at the: | Left arm |
| A patient presents with an artificial internal pacemaker that is firing at a rate of 140-150bpm. This type of paced rhythm is known as: | Runaway pacemaker |
| During systole, which of the following heart valves are closed? | Tricuspid and mitral |
| A sinus rhythm presents with unifocal PVC’s that occur with every fourth beat. These PVC’s would be classified as: | Quadgeminy PVC’s |
| A patient presents with an artificial internal pacemaker that fires continuously at a preset rate, regardless of the heart’s own electrical activity. This type of pacemaker is known as a: | Non-demand pacemaker |
| During diastole, which of the following heart valves are open? | Tricuspid and mitral |
| When obtaining a 12 lead ECG, where do you place V1? | Fourth ICS, 1 inch to the right of the sternum |
| According to Einthoven’s Triangle, in lead I, the negative electrode is at the: | Right arm |
| What is considered the normal max amplitude of a T wave in lead I? | 5 mm |
| A patient presents with an artificial internal pacemaker that fires only when the patient’s heart rate drops below a preset rate. This type of pacemaker is known as a: | Demand |
| Blood returns from the body and to the right atrium via the: | Vena cava |
| What is considered the normal max amplitude of a P wave in lead V1? | 1.5 mm |
| What is considered the normal max amplitude of a T wave in lead V1? | 10 mm |
| During diastole, which of the following heart valves are closed? | Aortic and pulmonic |
| What is usually the only normal pathway for an electrical impulse to travel from the right atrium to the ventricles? | Via the AV node |
| Which of the following ECG rhythms presents with a “saw tooth” pattern? | Atrial flutter |
| A patient presents with an artificial internal pacemaker that fires a pacer spike only before the QRS complex and there is no obvious P wave noted. This type of paced rhythm is known as: | Ventricular paced |
| What wave on an ECG represents depolarization of the ventricles? | QRS wave |
| Blood travels from the left ventricle and out to the body via the: | Aorta |
| According to Einthoven’s Triangle, in lead II, the negative electrode is at the: | Right arm |
| Leads V3 and V4 look at what part of the heart? | Anterior |
| According to Einthoven’s triangle, in lead III, the positive electrode is at the: | Left leg |
| Leads V1 and V2 look at what part of the heart? | Septal |
| An ECG rhythm in which the electrical impulse fails to leave the SA node, there are multiple dropped beats, but the cadence is right on track when it starts back up again is known as: | Sinus block |
| When obtaining a 12 lead ECG, where do you place V6? | Fifth ICS at the midaxillary line |
| The presence of a delta wave on an ECG is evidence of which of the following? Flutter, SVT, AFib, WPW | WPW |
| According to Einthoven’s triangle, in lead I, the positive electrode is at the: | Left arm |
| An ECG rhythm presents with two PVC’s that are completely different in appearance and they come right after one another. These PVC’s would be classified as: | Multifocal couplets |
| When obtaining a 12 lead ECG, where do you place V2? | Fourth ICS, approximately 1 in to the left of the sternum |
| A premature ectopic beat that presents with no P wave and a wide QRS complex would be: | PVC |
| What is usually the first IV medication that will be delivered to any patient that is in cardiac arrest, regardless of the rhythm? | Epinephrine |
| The administration of a calcium channel blocker to a patient would cause what to occur? | It would cause a decrease in the pt’s heart rate |
| During systole, which of the following heart valves are open? | Aortic and pulmonic |
| The absence of conduction between the atria and the ventricles is called a ____ AV block. | Third degree |
| Which is correct? The atria are considered the 2 largest chambers of the heart, the ventricles directly receive incoming blood from body, the ventricles are separated by the interventricular septum, the atria are the most inferior chambers of the heart | The ventricles are separated by the interventricular septum |
| The interval of time in the cardiac cycle when a sufficiently strong stimulus may produce depolarization is called the ______ refractory period. | Relative |
| Time interval markings on ECG paper are placed at _____- second intervals. | Three |
| Leads I, II, and III are considered ______ leads. | Bipolar |
| Pressure in the filled ventricles at the end of diastole is called: | Preload |
| The _____ consists of the visceral and parietal layers. | Pericardium |
| Leads designated aVR, aVL, and aVF are known as _____ leads. | Augmented |
| A prolonged PR interval: | Indicates a delay in the AV node |
| Stroke volume depends on three factors: preload, contractility, and: | Afterload |
| Ventricular fibrillation should be treated with immediate: | Defibrillation |
| Ventricular escape rhythms: | Serve as a safety mechanism to prevent cardiac standstill |
| The cardiovascular system’s two major components are the heart and: | Peripheral blood vessels |
| Muscle tremors, shivering, and loose electrodes can cause deflections on the ECG called: | Artifact |
| After blood circulates through the lungs and becomes oxygenated, it returns to the heart by way of the: | Pulmonary veins |
| The period of time from the end of one cardiac contraction to the end of the next is called the cardiac: | Cycle |
| The return of a cardiac muscle cell to its pre excitation resting state is called: | Repolarization |
| The P wave reflects: | Atrial depolarization |
| Leads I, II, and III form: | Einthoven’s Triangle |
| Which is true? In the heart’s normal state, the parasympathetic system is dominant; in stressful situations, the sympathetic system becomes dominant; during sleep, the parasympathetic and sympathetic systems balance | In stressful situations, the sympathetic system becomes dominant |
| The ST segment may be: Isoelectric in the presence of ischemia Invisible on a normal ECG tracing Positive and perfectly rounded Affected by a myocardial infarction | Affected by a myocardial infarction |
| Repolarization is influenced by: | Potassium |
| Which is true about the circulation of blood? The left atrium sends oxygenated blood into the left ventricle Intracardiac pressures are higher on the right side of the heart The right myocardium is thicker than the left | The left atrium sends oxygenated blood into the left ventricle |
| Which statement about arteries is true? They carry blood under low pressure They always carry blood away from the heart They always carry deoxygenated blood They cannot change the size of their lumen | They always carry blood away from the heart |
| A single monitoring lead can indicate: Right-to-left differences in impulse formation The time it takes to conduct an impulse through the heart Axis deviation or chamber enlargement | The time it takes to conduct an impulse through the heart |
| Dysrhythmias that originate in the SA node include: Sinus tachycardia, Atrial fibrillation, Junctional bradycardia, Atrial flutter | Sinus tachycardia |
| The connection points between the arterial and venous systems are called: | Capillaries |
| The T wave represents: | Ventricular repolarization |
| Which of the following is considered the most common type of cardiac dysrhythmia? Atrial fibrillation, Atrial flutter, SVT, NSR | Atrial fibrillation |
| The equation used to determine cardiac output is: | Stroke volume x heart rate |
| Dysrhythmias are defined as: | Heart rhythms abnormalities |
| Since PVCs do not usually depolarize the SA node: | The pause following the PVC is fully compensatory |
| The term “collateral circulation” refers to: | An alternative path for blood flow in case of blockage |
| The term automaticity refers to a cell’s capability of: | Self-depolarization |
| The heart itself receives its nutrients from the: | Coronary arteries |
| A positive chronotropic agent will: | Increase the heart rate |
| The heart contains the _____ valves. | Atrioventricular and semilunar |
| The QRS complex reflects: | Ventricular depolarization |
Created by:
Stephanie96