zianab
Forum Elite
Topics: 17
Posts: 282
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this is an nbme qs I found on this forum can u please answer it and expalin it why u choose the option,I will be grateful
thanks
. A 35-year-old woman is brought to the emergency
department by
her family because of shortness of breath, tightness
in her chest, and
palpitations for 2 hours. Over the past 11 months,
she has had five
similar episodes; during the last episode 3 weeks ago,
she was treated with
an intravenous medication that caused conversion to
sinus rhythm. Her
blood pressure is 95/60 mm Hg, and pulse is 165/min
and regular. The
lungs are clear to auscultation. Which of the
following is the most
likely underlying dysrhythmia?
A) Accelerated idioventricular rhythm
B) Accelerated junctional rhythm
C) Atrial fibrillation
D) Multifocal atrial tachycardia
E) Normal sinus rhythm
F) Paroxysmal supraventricular tachycardia
G) Premature supraventricular beats
H) Premature ventricular beats
I) Sick sinus syndrome
J) Sinus bradycardia
K) Sinus tachycardia
L) Ventricular fibrillation
M) Ventricular tachycardia
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| ssrpk
Forum Fanatic
Topics: 154
Posts: 2,796
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i am confused between junctional tachycardia and paroxysmal SVT!
history suggests two thngs, one these paroxysms are not associated with any AV blocks, so V-tach and idioventricular rythms are out! and last time it was controlled with an IV med, probably adenosine! there are other differentials in which paroxysm will be controlled with adenosine but they won't be too regular!
but i think i will go with paroxysmal SVT!
need more input so will check it out!
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| mazinger
Forum Guru
Topics: 46
Posts: 916
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I agree with you ssprk...
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| zzpearl
Forum Senior
Topics: 51
Posts: 138
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The Patients Pulse is 165/min,within the rage of Paroxysmal supraventricular tachycardia (130-220). WHile in Accelerated junctional rhythm , The junctional rhythm initiates within the AV nodal tissue. Accelerated junctional rhythm is a result of enhanced automaticity of the AVN that supersedes the sinus node rate. During this rhythm, the AVN is firing faster than the sinus node, resulting in a regular narrow complex rhythm. These rhythms may demonstrate retrograde P waves on ECG findings, and the rates can vary from 40-60 beats per minute.
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| sandra
Forum Guru
Topics: 178
Posts: 422
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answer?
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| anastamosis
Forum Senior
Topics: 34
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PSVT
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| arlete
Intern in 2009!!!!!
Topics: 30
Posts: 2,208
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F
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