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89 Cards in this Set
- Front
- Back
if you have LV dysfunction what should you be on
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ACE inhibitor or ARB
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what increases renin release?(4)
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reduced arterial pressure
decreased sodium delivery to the cortex increased sodium at the distal tubule stimulation of sypathetic |
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what does renin do in RAAS?
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cleaves angiotensinogen and releases angiotensin I
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what does ACE do in RAAS
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converts angiotensin I to andgiotensin II
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what goes angiotensin II do
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vasoconstricts and causes sodium retention by releasing aldosterone
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ACE inhibitors do what?
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cause vasodilation and induce natriuresis which reduces preload
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captopril, enalapril, fosinopril, lisinopril, quinapril, benazepril, moexipril, perindopril, ramipril, trandolapril
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ACE inihibtors
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losartan, valsartan, irbesartan, candesartan, telmisartan, eprosartan, olmesartan
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ARBS!
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used for CHF, reducing risk of recurrent post MI, hypertension
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ACE inhibitors or ARBS
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diabetic patients should be on
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enalapril
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adverse effects include blood dyscrasias, aplastic anemia, drug cough, andioedema, hypotension and hyperkalemia
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ACE inhibitors
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dizziness and hyperkalemia
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advsere effects of ARB
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if your pt gets angioedema switch to
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ARB
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angioedema is cause by
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increased bradykinins because ACE is blocked
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aliskiren
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renin inhibtor
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cadiac glycosides are used in pts with
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arrythmias and CHF
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digoxin and digitoxin, digitalis
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cadiac glycosides
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how do cardiac glycosides work
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cardiac glycosides inhibit Na/K-ATPase= increased Na which reduces the normal exchange of intracellular Ca for extracellular Na= greater release of Ca= positive ionitropic effect
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cardiac glycosides do what to heart
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increase stroke volume and enhance cardiac output, end-diastolic volume decrease and improves circulation
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what do cardiac glycosides do to vagal tone
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increase vagal activity
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dosing of digoxin is
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individualized
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for acute digoxin toxicity what do you give
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digoxin immune FAB- digibind
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inamirnone lactate and milrinone
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PDE 3 inhibitors in caridiac and increase cAMP= more Ca for better contractions
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inamirnone lactate and milrinone
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PDE 3 inhibitors in caridiac and increase cAMP= more Ca for better contractions
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if you dont respond to digitalis what do you give?
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inamrinone lactate or milrinone
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dobutamine can be used for
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short term therapy of seevr chronic cardiac failure and support after MI or surgery
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nesiritide- MOA
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increases cGMP and produces vasodilation, inccreases stroke volume
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nitroprusside, nitroglycerin
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vasodilators
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for severe, decompensated CHF use
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vasodilators
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isosorbide, hydralazine, prazosin, carevdilol
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long term therapy vasodilators
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class I drugs MOA
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block Na channels and reduce phase 0 depolarization
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class 1A do what to heart
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prolong refractory period and slow conduction
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class 1B do what to heart
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shorten duration of refratory period
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class 1 C does what to heart
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slows conduction
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quinidine, procainamide, disoyramide
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class IA- suppresses ventricular arrythmias
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lidocaine, mexiletine
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class 1B- suppresses ventrciular arrythmias
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flecanide
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class 1C- treat severe ventricular arrythmias
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propanolol, atenolol nadolol
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class II- suppress some ventricular arrythmias and inhibit AV node
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amiodarone
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class III- suppresses ventricular arrythmias
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verapamil
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class IV- treats reenterant supraventrciular tachycardia, suppress AV node conduction
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adenosin
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class V- treat paroxysmal atrial tachycardia
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atropine used for
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increase heart rate in bradycardia and heart blocks
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digoxin uses
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inhibit AV node and treat A fib
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class IA- quinidine uses
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supraventricular and ventricular arrythmias, used to maintain sinus rhythm after conversion of A fib or A flutter
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causes cinchonism- ringing of ears and dizzines
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quinindine- class 1A
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procainamide-class IA
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safer, fewer effects then quinidine-causes lupus like syndrome!!
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lidocaine-
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class IB- ventricular arrythmiasa second choice,
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mexiletene
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class 1B- used for long term ventricular arrythmias
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flecanide and encainide
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class 1C-ventricular tachyarrythmia and for paroxysmal A fib/ a flutter.
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propafenone
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1C- supraventricular arrythmias and life threatening ventrciular arrythmias
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class II
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B Blockers, inhibit phase IV, prolong AV conduction, treat A fib, A flutter
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amiodarone
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class III- like thyroxine, increases refractoriness and depresses sinus node, for atrial/ ventricular arrythmias
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pulmonary fibrosis, gray man syndrome, photosensitivity, corneal microdeposits, thyroid disorders
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adverse effects of amiodorone
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ibutilide
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class III- conversion of A fib/ A flutter, blocks inward Na channels
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sotalol
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class III- works as B blocker too, atrial or life threatening ventricular arrythmias
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dofetilide-
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class III- conversion in A fib or A flutter- inhibits K channels
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bretylium
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class III- inhibits catecholamines for severes refractory ventricular tachyarrythmias and ventrciular fibrillation
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L type-Ca channel blockers
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class IV- for supraventricular tachycadia and A flutter and A fib, negative iotropic effect - dont use in WPW
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adenosine
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class V- increases K and decreases Ca for paroxysmal superventricular tachycardia and WPW
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atropine
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blocks Ach and elevates HR at SA and AVfor bradyarrythmias
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classic angina
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due to diminished coronary flow when oxygen demand increases ( exercise)
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vasospastic- prinzmentals angina
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coronary vasospasm that decreases O2 supply and occurs at rest
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nitrates/nitrites MOA
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activates guynylate cyclase and increase cGMP to relax contractions and dilate all vessels
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nitroglycerin used for with angina
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unstable and prinzmetals
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angina drugs-
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nitrates/nitrites, B blockers, ca channel blockerss, dipyridamole
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nifedipine effects on heart
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less than verapamil and diltiazem
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dipyridamole used for?
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angia pectoris because its PGI2
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give K sparing diuretics with what heart medication?
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cardiac glycosides- to prevent potassium depletion
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reduced peripheral vascular resistance, decreases sympathetics, decreases renin release..which drug
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propanolol and beta blockers
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what happens if you abruptly stop B blockers when taking it for angina
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worsens angina and increases risk of MI
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prazosin, terazosin, doxazosin
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a blockers
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phentolamine and phenoxybenzamine
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block alpha 1 and alpha 2 receptors fror phenochromocytoma in hypertension
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labetolol
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blocks alpha and Beta
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labetolol use
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for hypertensive emergencies and hypertension of pheochromocytoma
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nifedipine, nicardipine, nisoldipine, isradipine, amlodipine, felodipine
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dihydropyridines -ca channel blockers- which dont effect heart and could cause reflex tachy. when combine with B blockers lower blood pressure even more then separately
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methyldopa
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blocks alpha 1 and alpha 2 and decreases peripheral resistance
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clonidine
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alpha 2 agonist whch reduces peripheral resistance
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guanabenz acetate
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activates alpha 2 and decreases sympathetics- lower BP
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reserpine
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elimiinates NE = lower BP; contraindicated in those with depression
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hydralazine, minoxidil, sodium nirtoprusside, diazoxide
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vasodilators
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hydralazine and minoxidil work on what vessels
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artery
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nitroprusside works on what vessels
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arteries more than veins
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ambrisentan and bosentan MOA
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ambrisentan works as a selective endothelin A receptor antagonist for pulmonary hypertension
bosentan antagonizes endothelin A and B receptors to reduce pulmonary hypertension |
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sildenafil, tadalafil, vardenafil
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vasodilators to treat erectile dysfnction by inhibiting PDE 5
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statins inhibit
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HMG co A reductase
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myositis, rhabdmyolysis, hepatotoxicity and elevations in aminotransferases
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statin adverse effects
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nicotinic acid lowers
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cholesterol and triglycerides. reduces VLSL, IDL and LDL, HDL increases
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fenofibrate, gemfibrozil
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increases VLDL and chylomicrons, reduced triglycerides
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a flutter, given quinidine and has sporadic arrythmias so what will you add?
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digitalis
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