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28 Cards in this Set
- Front
- Back
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In normal sinus rhythm, how long is the PR interval?
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0.12-0.20 second (3-5 small boxes)
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In normal sinus rhythm, how long is the QRS complex?
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<0.10 second (<2.5 small boxes)
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What are the intrinsic rates for the pacemakers of the heart?
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SA node: 60-100
Atrial foci: 60-80 AV junction foci: 40-60 Ventricular foci 20-40 Lower = slower |
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What does a small box stand for?
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0.04 sec
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What is the difference b/w Mobitz I and Mobitz II?
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Mobitz I is irregular and Mobitz II is regular, but they both have a P wave with no QRS complex
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How do you know it's a junctional rhythm?
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It has a DIP on the ECG.
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What does Torsades de pointe indicate?
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Low magnesium
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How do you remember ECG placement?
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White on right, smoke over fire
(white over green on right, black over red on left) |
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What should the mean arterial pressure be, and why is it important?
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>70, looks at the perfusion of the vital organs
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How many boxes should a normal ECG be?
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QRS should be 1-3 small boxes wide.
PR should be 3-5 small boxes wide. QT should be 10 small boxes |
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What should the digoxin level be at?
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<2
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What do you do for paroxysmal supraventricular tachycardia?
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Adenosine or have pt bear down or cardioversion
Have defibrillator, emergency drugs, and pacemaker READY |
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Tx of chronic a fib
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amiodarone
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Main rx cause of a flutter
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quinidine
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Where is the P wave in junctional rhythm?
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Inverted or AFTER the QRS
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What do you do for junctional rhythm?
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NO CARDIOVERSION
Hold the digoxin!! Give atropine if it's due to dig toxicity |
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What is the antidote to atropine and what side effects do you watch for?
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Physostigmine is the antidote
Watch for urinary retention and drowsiness. Flushing may occur 15-20 min after administration, but it's NORMAL. |
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What does second degree AV block type I look like?
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IRREGULAR
Long PR interval and a dropped QRS complex |
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What does second degree AV block type II look like?
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Regular P wave with a dropped QRS complex
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Tx for PVC's
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Beta blockers
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What is the difference b/w a junctional dysrhythmia and a ventricular dysrhythmia?
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Junctional is regular rhythm
Ventricular is irregular rhythm |
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What are the 5 H's of pulseless electrical activity?
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Hypothermia
Hypoxia Hypoglycemia Hypo/Hyperkalemia H+ ions (acidotic) |
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What are the 5 T's of pulseless electrical activity?
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Toxins
Temponade Tension pneumothorax Thrombosis Trauma |
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What drug do you hold if iodine is to be used?
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Metformin (Glucophage) b/c of the risk of lactic acidosis
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What position do you put a person in that has had balloon angioplasty, cardiac cath, or a stent?
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Keep limb straight and monitor CWMS in extremity used for 6-8 hours
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How much drainage would you expect with a chest tube?
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No more than 150ml/hr. Report if greater than this.
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How many joules do you defibrillate at?
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200-360 joules
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Central venous pressure should be
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3-8mm Hg. Indicates fluid balance.
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