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Kaplan Qbank USMLE



Author5 Posts
  #1

A 35 YO WOMAN IS BROUGHT TO ED BY HER FAMILY BCAUSE OF SHORTNESS OF BREATH, THIGHTNESS IN HER CHEST, AND PALPITAION FOR 2 HR. OVER THE 11 M SHE HAS HAD FIVE SIMILAR EPISODES. DURING THE ALST EPISODE 3 WKS AGO, SHE WWA<S TREATED WITH AN IV MEDICATION THAT CAUSED CONVERSION TO9 SINUS RYTHM. HER BP=95/60 PULSE=165 AND REGULAR. LUNGS ARE CLEAR TO AUSCULTATION. WHICH IS THE MOST LIKELY UNDERLYING DYSRHYTMIA??

A) ACCELERATED IDIOVENTRICULAR ARRHYTMIA
B)ACCELERATED JUNCTIONAL ARRHYTMIA
C)ATRIAL FIBRILLATION
D)MAT
E)NORMAL SINUS RYTHM
F)PAROXISMAL SUPRAVENTRICULAR TACHY
G)PREMATURE SUPRAVENTRICULAR BEATS
H)PREMATURE VENTRICULAR BEATS
J)SICK SINUS SD
K)SINUS TACHYCARDIA
L)V. FIBRILLATION
M)VENT. TACHYCARDIA

  #2

Is that F?

  #3

THAT WAS MY ANSWER TOO, BUT I AM NOT SURE.
SHE WAS TREATED BEFORE WITH ONLY MEDICATION, SO HAS A LOW POSSIBILITY OF A VENTRICULAR ARRYTHMIA. (V TACH, V FIB, )
IS NOT NORMAL SINUS RYTHM, OR SINUS BRADYCARDIA.
NOT IRREGULAR PULSE (NO MAT OR ATRIAL FIB).
FROM THE REST OF THE OPTION PAROXYSMAL SUPRAVENTRICULAR TACHYCARDIA ( PULSE OF 165 REGULAR) SEEMS TO ME THE CLOSEST
BUT DON'T KNOW THE ANSWER :x :x :!:

  #4

The IV medication was probably Iv adenosine.

  #5

I think SVT. Low BP, fast pulse. Repeated episodes. And yep..adenosine is the drug.

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