10.12.2013 Flashcards

0
Q

Focal atrial tachycardia due to digitalis toxicity usually associated with

A

2:1 AV block

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1
Q

Digitalis toxicity is enhanced by

A

Hypokalemia
Hypomagnesimia
Hypercalcemia

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2
Q

Focal atrial tachycardias that respond to AV node blocking agents

A

FAT due to triggered activity or micro reentry

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3
Q

Diff btw paroxysmal and non paroxysmal junctional tachycardia based on rate

A

Non paroxysmal : 70-130 bpm

Paroxysmal : 110-250

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4
Q

Treatment of digoxin induced tachycardia

A

Phenytoin

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5
Q

Axis and LBBB

A

LBBB with normal axis: good
LBBB with left axis : bad
LBBB with right axis: worst

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