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30 Cards in this Set

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