HGTC NUR 221 EKG Heart Conduction System HGTC NUR 221
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| artifact | show 🗑
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| Where is the SA Node located? | show 🗑
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| show | SA Node (sinoatrial node)
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| show | SA Node (sinoatrial node)
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| show | in the front of the right atrium
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| show | bundle of HIS
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| True or False: The bundle of His has pacemaker cells | show 🗑
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| What is the rate that the bundle of His initiates electrical activity? | show 🗑
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| show | PR Interval (PRI)
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| show | 0.12-0.20 (3-4 boxes)
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| Hallmark of atrial flutter | show 🗑
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| What lab value to you check with atrial flutter? | show 🗑
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| show | "P" present, round and upright
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| show | rhythms that initiated in the area of the AV junction
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| Who has a shorter QT segment- men or women? | show 🗑
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| What does a long QT segment increase a patient's risk for? | show 🗑
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| In which direction do you read strips? | show 🗑
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| How are heart rhythms classified? | show 🗑
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| show | right atrium
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| The AV node is located in the___________? | show 🗑
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| show | 60-100
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| The intrinsic firing rate of the AV junction is__________ bpm | show 🗑
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| show | evaluate electrical activity in the heart
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| show | SA node, Internodal pathways, AV node, bundle of His, Bundle branches, Purkinje fibers
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| The intrinsic firing rate of the Purkinje network is________ bpm | show 🗑
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| The SA node recieves its blood supply mainly from the : | show 🗑
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| abnormal heart rhythms are: | show 🗑
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| show | interval
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| show | positively, negatively
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| show | P wave, atrial contraction
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| The pacemaker of the heart | show 🗑
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| The ECG waveform includes a_________, _____________, and___________. | show 🗑
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| atrial contraction is reflected by the______________, normally the 1st wave on an ECG | show 🗑
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| What indicates that SA node is healthy and the atria are contracting (depolarizing) normally? | show 🗑
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| The time it takes for the electrical activity to move through the AV node, the bundle of His, and the left and right bundle branches is reflected in the________________ | show 🗑
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| show | 0.06-0.10
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| There is normally____QRS interval for each P wave | show 🗑
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| show | block or delay
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| show | ventricular relaxation (repolarization)
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| show | asystole
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| The chief chemical transmitter for the sympathetic nervous system is | show 🗑
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| show | right atrium
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| show | 0.8
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| show | capillaries
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| show | Bicuspid
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| show | Tricuspid
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| Starling's law of the heart is also referred to as: | show 🗑
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| Starling's law of the heart is : | show 🗑
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| show | 70
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| The _________ nervous system is responsible for preparation of the body for physical activity (fight or flight) | show 🗑
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| What regulates the calmer (rest and digest) functions of our existence? | show 🗑
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| The____________receives blood from the right atrium and pumps it to the pulmonary system | show 🗑
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| show | left ventricle
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| show | stroke volume
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| show | Cardiac output
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| The______________ regulates functions of the body that are involuntary or not under conscious control | show 🗑
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| What bodily functions are regulated by the autonomic nervous system? | show 🗑
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| Cardiac output (CO) is calculated by multiplying_________x__________ | show 🗑
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| show | 5.6
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| Inadequate cardiac output may be indicated by what symptoms? | show 🗑
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| The resistance against which the heart must pump is__________ | show 🗑
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| show | preload
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| show | 4-8 L/min
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| About what percentage of total CO flows passively from the atria to the ventricles? | show 🗑
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| show | Pulmonary Artery
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| How many impulses per minute are normally generated by the SA node? | show 🗑
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| What does the P wave represent? | show 🗑
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| What is the normal duration of the QRS complex? | show 🗑
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| show | ventricular repolarization
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| How long is a normal PR interval? | show 🗑
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| Which part of the ECG varies with heart rate? | show 🗑
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| What does each small box on the vertical axis of ECG paper represent? | show 🗑
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| show | the impulse originates in the AV junction.
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| Signs or symptoms of decreased CO due to SVT include…… | show 🗑
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| show | Adenosine
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| show | calcium channel blocker
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| show | CPR
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| Which intervention is appropriate for VT in a hemodynamically stable patient? | show 🗑
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| show | atropine
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| Which statement is correct about AV dissociation? | show 🗑
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| When caring for a patient with a dysrhythmia, remember to always treat the ______________, not the_______________ | show 🗑
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| When caring for a patient with a dysrhythmia, administer____________ as indicated, ensure patent______________, obtain______________, and notify the patient's healthcare provider. | show 🗑
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| show | electrical
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| Electrical impulses are generated by the exchange of which ions? | show 🗑
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| show | mechanical event
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| show | resting
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| The horizontal axis on ECG represents___________, and one small box equals___________, and a large one (representing 5 small boxes) equals________________ | show 🗑
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| The vertical axis on an ECG measures amplitude or ______________. Each small box represents __________, each large box represents______________ | show 🗑
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| show | HR between 60-100 bpm with regular atrial and ventricular rhythms and P waves that are uniform, round and upright
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| The absence of P waves means ____________ has been lost | show 🗑
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| SVT: | show 🗑
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| show | adenosine
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| show | by rapid IV push due to its short half-life
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| A fast, ugly, irregular rhythm is most likely to be_____________________ | show 🗑
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| show | isn't always fast, just irregular with no identifiable P waves and a generally normal QRS complex
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| One concern with AF | show 🗑
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| Rapid AF is often treated with_____________ to control the ventricular rate. | show 🗑
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| show | calcium channel blocker, hypotension - Monitor the patients BP closely!
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| Ventricular Tachycardia (VT) occurs when the____________ take over as the hearts pacemaker | show 🗑
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| show | coronary artery disease
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| Causes of sinus bradycardia include: | show 🗑
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| For symptomatic bradycardia, the drug of choice is______________________ | show 🗑
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