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30 Cards in this Set
- Front
- Back
Sx of LQTS?
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palpitations, syncope, seizures, sudden cardiac death
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Are QT intervals longer or shorter with bradycardia?
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Longer
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What are EAD's triggered by?
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Bradycardia
hypokalemia hypomagnesium medications |
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Normal Qtc?
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>0.44 in men
>0.45/0.46 in women >0.5 is long by all sources |
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What classes of drugs can prolong QT?
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Class Ia anti-arrythmics
nonsedating antihistamines (pulled from market) macrolide antibiotics psychotropic meds gastric motility agents |
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Gene defet in Brugada?
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SCN5A
-sodium channel |
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EKG changes with Brugada?
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V1-3 prominent ST elevation
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What should one do with a pt that has PQTS but needs a drug that potentially prolongs QT?
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Make sure they need that drug
admit and monitor if QT is >500ms or increases by 60ms--worry |
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Tx for TdP?
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Pulsless--non-synchronized electrical defib
Consious--IV Mg sulfate first line or isoproteronol if no PQTS |
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What is dose for isoproterenol in TdP tx?
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2 mcg/min
peds-0.05-0.1 mcg/kg/min |
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Does of Mg sulfate for TdP tx?
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2 g IV bolus of 50% or 3-25 mg/min infusion
Peds-25-50 mg/kg bolus |
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Tx for inadequate profusion with bradycardia?
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atropine (not to Mobitz 2 or higher or transplanted heart)
DA/Epi or transcutaneous pacing |
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Dose of atropine for tx of brady?
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0.5 mg IV inital dose
repeat every 3-5 minutes, up to 3 mg (0.04 mg/kg) |
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Dose of DA for tx of brady?
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2-10 mcg/kg/min
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Dose of Epi of tx brady?
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2-10 mcg/min
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Tx for BB OD?
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IV fluids and atropine
If needed: add glucagon |
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Tx for CBC OD?
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IV bolus isotonic crystaloid
IV ca salts IV glucagon |
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Tx for digoxin toxcitity?
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ABC and o2/cardiac monitoring
IV acess/EKG finger stick glucose atropine (0.5 mg or peds 0.02 mg/kg) IV bolus (20mL/kg) |
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Dx if pt has wide QRS tachy?
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supraventricular or venticular in origin
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Orthodromic AVRT?
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narrow QRS, conduction pathway is through normal AV node system
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Antidromic AVRT?
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Wide QRS
conduction travels on accessory pathway |
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Sx of AVNRT?
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palpitations
dizziness dyspnea chest pain fatigue syncope |
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What are the CI for carotid sinus massage?
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carotid bruit
TIA/stroke MI last 6 months hx serious arrythmias -can do valsalva in place of CSM |
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What is pt survival if they get good quick CPR, defibrilation and ACLS?
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up from 0-2% to 30%
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What should you assume in a pt with a wide complex tachy that you can not deffinitivly dx from EKG?
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V Tac
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Dose of lidocaine?
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1-1.5 mg/kg for 1st dose
then 0.5-0.75 mg/kg -max dose 3 mg/kg |
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Dose amiodarone?
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300 mg IV/IO
then 150 mg IV/IO if needed max 2.2g in 24 hours peds- 5 mg/kg max 15 mg/kg |
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Dose Epi for tachyarrythmias?
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1 mg IV/IO every 3-5 minutes
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Dose adenosine for tachyarrythmias?
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6 mg IV then 12 mg if needed
peds: <50kg- 0.1mg/kg or 0.2mg/kg up to 6 mg |
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Shoudl atropine be used with WCT?
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NO
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