Lau Lectures - EKG Flashcards

1
Q

on the EKG, what makes a PVC a PVC?

A

T & QRS should be pointing in opposite directions from one another.

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2
Q

what can be inferred if AVR appears + on the EKG?

A

that the patient either has dextrocardia or HOCM

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3
Q

per lau, what is the safest and most common location to get an MI?

A

posterior wall

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4
Q

what is the most deadly location (and one of the more rare) locations to get an MI?

A

anterior wall (LAD)

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5
Q

a negative lead II is indicative of what?

A

dextrocardia

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6
Q

reciprocal changes in the inferior wall from the lateral wall indicate the MI location is where?

A

inferior wall

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7
Q

an MI presents with a tall R and ST depression on the ____ wall and as a small R with ST elevation on the ____ wall.

A

posterior; anterior

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8
Q

V1 is positive with both HOCM and dextrocardia, what other leads can you check to get you closer to a diagnosis btw the two?

A

check v6!! if it’s dextrocardia, it would be very very negative.

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9
Q

what drug is known to cause a 2 second asystole?

A

adenosine

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10
Q

what is the best lead for arrhythmias? For detecting ischemia?

A

Lead II and V5 respectively

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11
Q

how do you treat Aflutter?

A

as AFib

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12
Q

what should be done before a pt is placed on anticoag therapy for first time Afib?

A

RECTAL EXAM

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13
Q

per lau is it safe to use heparin on patients who are suffering from hemorrhoids?

A

yes

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14
Q

what is the most common cause of poorly progressing R to R?

A

MI

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15
Q

what is the first drug we give pts who come in with an MI?

A

aspirin to CHEW - no Water to drink !! plus Lau’s OMI - oxygen, monitor, and start IV.

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16
Q

a descriptor for a heart arrhythmia in which abnormal heart beats occur every other concurrent beat.

A

Bigeminy - as such every third would be trigeminy

17
Q

An R and R’ is indicative of what?

A

a BBB - this basically means that one ventricle fired slightly after the other (was late in firing so the R’ reps the delayed fire)