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Ashley's - Paramedicine III > ECG's > Flashcards

ECG's Flashcards

1
Q

Leads

What are the Lateral Leads and what on he heart do they visualize?

A

Lead 1
Lead aVL
V5
V6
All viewing the circumflex artery

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2
Q

Leads

What are the Anterior Leads and what part of the heart do they view?

A

V3 + V4
Both viewing the right coronary artery

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3
Q

Leads

What are the Septal Leads and what part of the heart are they viewing?

A

V1 + V2
Both viewing the left anterior descending artery

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4
Q

Leads

What are the Inferior Leads and what part of the heart do they view?

A

Lead II
Lead III
Lead AVF
All viewing the right coronary artery

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5
Q

Leads

What is lead aVR?

A

lead aVR is the augmented unipolar right arm lead and may be considered as looking into the cavity of the heart from the right shoulder.
It follows that all normally upright deflections on the ECG will, under normal circumstances, be negative in this lead

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6
Q

What are the CAUSES of ST-elevation?

What are the causes of hypercalcemia?

A
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7
Q

ECG’s

What are you wary of when converting Afib?

A

Throwing a clot - the same bloos keeps circulating in the same area

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8
Q

ECG’s

What does a flipped P-wave in V2 mean?

What should you always do before palcing the wires?

A

Check the placement of the wires

Label the wires/check the labels are correct

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9
Q

ECG’s

Teach me about Axis Deviation

A
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10
Q

ECG’s

What are the medications that affect the CARDIAC action potential?

A
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11
Q

ECG’s

How many squares should be on the left hand side of the 12-lead?

For calibration

A

2 squares

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12
Q

ECG’s

What is a normal axis?

A

When leads 1 and 2 are up

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13
Q

ECG’s

What does depression mean?

What should you do if V2 and V3 have depression?

A

Potential reciprocal changes
Ischemia

Set up a 15-lead to check for elevation on the other side

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14
Q

ECG’s

What are the causes of Right Axis Deviation?

What should you do?

A

Mechanical shifts from inspiration, emphysema

RVH

RBBB

Left posterior hemiblock

WPW syndrome (wolf-parkinson white)

Pulmonary embolism

Arrnythmias

Check wire placemnt
Ventricular Rhythms eg. VT, AIVR, Ventricular ectopy
Hyperkaliemia
Severe Right Ventricular Hypertrophy

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15
Q

ECG’s

What rythym is it if there are upsidedown or NO p-waves

A

A junctional rythym

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16
Q

ECG’s

What are the causes of Left Axis Deviation?

A

Normal Variation

Mechanical shidts from expiration, acities, abnormal tumors, high diaphragm from preg, obesity

Left anterior hemiblock

LBBB

WPW syndrome

Hyperkalemia

17
Q

ECG’s

Why are bundle branch blocks important?

A

If you have a known LBBB it’s a STMEI-mimic meaning it meets the STEMI-bypass protocol.

18
Q

ECG’s

What width does the QRS have to be greater than in order to check for BUNDLE BRANCH BLOCKS?

A

0.10 or 3 lil squares

19
Q

ECG’s

What is an LBBB in terms of leads?

what’s positive and negative?

A

Left hand v6
Right hand V1
(right up, left down = RBBB

20
Q

Show me LBBB vs RBBB on the ECG

A
21
Q

What rhythms would there be no or near to no bloodflow?

A

Asystole

Ventricular Fibrillation

Pulseless Ventricular Tachycardia

Torsade de Points (Polymorphic V-Tach)

PEA

22
Q

Left Ventricular Hypertrophy

How to diagnose LVH on ECG?

What is the pathophysiology?

A
  • S wave depth in V1 + the tallest R wave height in V5-V6 GREATER than 35mm

The left ventricle hypertrophies in response to pressure overload secondary to conditions such as aortic stenosis and hypertension

23
Q

STEMI Mimic - Benign Early Repolarization (BER)

What positve findings support the diagnosis of BER?

What do S and J waves look like?

What are the negative findings (meaing it cannot be BER)?

A

S wave OR J wave in V2 & V3

V2 has neither an S wave or a J wave
V3 has neither an S wave or a J wave

24
Q

J wave

Also called the osborne waves, they are commonly seen in patients that are ?

Show me J points and the osbore wave

A

Hypothermic

25
Q

J - wave

What are the differentials for non-hypothermic osborne waves?

It’s less common in patients that are GREATER than ?

A

Hypercalcaemia

Acute myocardial Iscgaemia

Takotsubo Cardiomyopathy

Left ventricular hypertrophy due to hypertension

Normal varient and early repolarization

Neurological insults - intracranial hypertension, severe head injury, subarachnoid hemorrhage

Sever myocarditis

Brugada Syndrome

Le syndrome D’Haissaguerre

50y/o

Ashley's - Paramedicine III (16 decks)

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