doc_clotaire
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A 47-year-old homeless, recovering heroin-dependent male, collapses on the sidewalk after receiving 500mg of methadone from a maintenance clinic. The paramedics note tachyarrhythmia and shock.
Which of the following is his most probable cardiac arrhythmia?
A. Sinus bradycardia with sinus arrhythmia
B. Complete heart block with an idioventricular rhythm
C. Atrial fibrillation with a rapid ventricular response
D. Torsades de pointes
E. Paroxysmal supraventricular tachycardia (PSV
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| darkhorse
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DDDDDDDD
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| abarusmle
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Just by process of exclusion, don't know the pathopharmacology:
Q says tachyarrythmia plus shock ...
So,
not A
Not B because in 3rd degree AV block rate is in 30
Not C Afib with rapid VR usually not in shock
Not E PSVT usually not in Shock
So D,
Is it due to long QT interval by methadone?
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| aaroho
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B
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| sherry39
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bbbbbbbbbbb
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| dr.wad
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D
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| simi
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D
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| lampard
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yup D
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| shahnaz.r
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?B [but it's not tachyarrythmia..... ]
NO clue.....
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| DrVirgo
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Methadone can cause QT prolongation, so I guess Torsades...
D.
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| DrVirgo
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Whats the answer doc_clotaire.
I hope this isn't a trick question.
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| sherry39
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plz answer dr.clotaire
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| kaphoury
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i thik it is D methadone may cause QT interval prolongation
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