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51 Cards in this Set
- Front
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epinephrine
iv/io dosage when used for cardiac arrest |
1 mg (10 ml of 1:10,000 soln) q 3-5 mins during resusc
each dose is followed by 20 mL flush, then raise arm 10-20 seconds after dose |
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vasopressin
iv dosage when used for cardiac arrest |
40 U, can replace first or second dose of epi
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amiodarone
iv/io dosage when used in vf/vt/cardiac arrest unresponsive to cpr |
300 mg iv/io once, then one 150 mg iv push in 3-5 mins
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lidocaine
iv/io dosage when used in vf/vt/cardiac arrest unresponsive to cpr |
1-1.5 mg/kg (1st dose), then .5-.75 mg/kg at 5-10 min intervals
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indication for mgso4
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cardiac arreest only if torsades de pointes or suspected hypomagnesemia is present
digitalis toxicity |
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mgso4
iv/io dosage in cardiac arrest |
1-2 g diluted in 10 mL of D5W, given over 5-20 mins
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when should an anti-arrhythmic be used during acls
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when vf/pulseless vt persists after 2-3 shocks, separated by cycles of cpr and administration of vasopressor, use anti-arrhythmic
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anti-arrhythmics used in persistent vt/vf
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amiodarone
lidocaine mgso4 |
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indications for atropine
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first drug given for sx sinus brady
av block or ventricular asystole (bt not mobitz ii) second drug (p epi/vasopressin) for asystole or bradycardic pea organophosphate poisoning |
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atropine
iv/io dose when given for asystole or pea |
1 mg, then repeat q 3-5 mins for max of 3 doses
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mnemonic for causes of PEA
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Hs (6) and Ts (5)
hypovolemia hypoxia h+ excess (acidosis) hyper/hypokalemi a hypoglycemia hypothermia toxins tamponade tension ptx thrombosis (coronary or pulm) trauma |
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ekg findings of hyperkalemia
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tall, peaked t waves
wide qrs sine-wave pea |
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ekg findings of hypokalemia
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flattened t waves
prominent u waves wide qrs qt prolongation wide complex tachy |
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tx of hyperkalemia
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sodium bicarb
glucose + insulin CaCl3 kayexelate/sorbitol dialysis albuterol (possibly) |
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tx of hypokalemia
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K infusion
add Mg if cardiac arrest |
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ekg findings of hypothermia
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j or osborne waves
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in general how long can you give a pt o2 during acs
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6 hrs
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what dosage of asa should be given in a pt with acs
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160 or 325mg
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dosing of nitroglycerin tabs
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up to 3 tablets sublingual, q 3-5 mins
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contraindications for nitro
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bp <90/30
bradycardia (<50 bpm) tachycardia recent pde-5 inhibitor use (viagra) --> refractory hypotension inferior mi or rv infarction (venodilation will --> decreased rv pressure, and these pts esp need increased rv filling pressures to maintain co and bp) |
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what is the time frame of reperfrusion in a pt with a stemi
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fibrinolytics within 30 mins of arrival
or pci within 90 mins of arrival |
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what meds are generally given if cardiac ischemia is suspected
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MOAN
morphine (if pain not relieved by nitro) o2 asa nitro |
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morphine
iv dosage in stemi |
2-4 mg
additional doses of 2-8 mg at 5-15 min intervals |
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major contraindications to asa
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true asa allergy
active or recent gi bleed |
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indication for administration of fibrinolytics
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>1 mm ST elevation in 2 contiguous ekg leads
can be given if sx occurred within 12 hrs of admin |
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which is superior: fibrinolytics or pci
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pci if done at a skilled pci facility
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most commonly used fibrinolytics
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tpa
reteplase tenecteplase |
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what is the sequence of treating poor perfusion 2ndary to bradycardia
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prepare for transcutaneous pacing
give atropine while awaiting pacer if atropine is not effective, give epi or da until pacer arrives |
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epi
dose for bradycardia |
2-10 mcg/min
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dopamine
dose for bradycardia |
2-10 mg/kg/min
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indications for starting transcutaneous pacing
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bradycardia pts with sx who are unstable, esp if with type 2 2nd degree heart block or 3rd deg AV block
start immediately if no response to atropine, atropine will likely not work, or if pt is severely sx |
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what to do if transcutaneous pacing is ineffective
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start transvenous pacing
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contraindications for tcp
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severe hypothermia
not rec for asystole |
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recommended uses for tcp
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sx bradyarrhythmias
brady w escape rhythms standby pacing |
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rhythms for unstable tachy
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afib
a-flutter svt monomorphic and polymorphic vt wide-complex tachy of uncertain type |
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pathophysiology of unstable tachy
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heart is beating so fast that co is reduced --> pulm edema, coronary ischemia, and reduced blood flow to vital organs
heart is beating ineffectively so taht coordination between atrium and ventricles or b/l ventricles is ineffective |
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tx of unstable tachy
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immediate cardioversion
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sx and si of unstable tachy
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altered ms, cp, sob, presyncope/syncope
hypotension shock rate usually >150 |
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if a pt has unstable tachy with ekg showing monomorphic vt, how to manage pt
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synchronized cardioversion, initial shock of 100J
if no response, then increase dose in stepwise fashion |
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if a pt has unstable tachy with ekg showing polymorphic vt, tx?
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high energy unsynchronized shocks (defib doses)
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synchronized vs unsynchronized shock
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unsync: shock is delivered as soon as shock button is pushed, and can fall anywhere during cardiac cycle. must use HIGHER energy thank synch shock
sync: uses a sensor to deliver the shock so that it fires at peak of qrs complex; avoids shocking during t waves (that --> vf); lower energy required |
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when is sync shock used
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sx stable pt w tachy
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when is unsync shock used
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pulseless tachy
pre cardiac arrest (severe shock or polymorphic vt) when you are unsure which to use |
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rhythms for stable tachy
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sinus tachy
a-fib a-flutter av block vt |
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if pt has stable tachy with narrow qrs and reg rhythm, next step?
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vagal maneuvers
give adenosine, if no conversion give again at increased dose x2 |
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dose for adenosine for cardioversion
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rapid iv push of 6 mg initially, then 12 mg through rapid iv push
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if pt has stable tachy with narrow qrs and irreg rhythm next step?
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control rate (likely afib or aflutter), use diltiazem or BB
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if pt has wide qrs and regular rhythm, next step?
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if vt or uncertain rhythm, amiodarone
synchronized cardioversion if svt with aberrancy, give adenosine |
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dose of amiodarone when given fro vtach
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150 mg iv over 10 mins, repeat as needed uuntil 2.2g/24 reached
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if pt has pre-excited a-fib, next step
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AVOID AV blocking agents
give anti-arrhythmic, suhc as amiodarone 150 mg |
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how does adenosine work
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increases avv block and terminates 90% of all re-entrant rhythms
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