Flashcards in [22] Pediatric ECG Deck (29):

1

## At what age is the LV bigger than the RV?

### 1 month

2

##
Describe: T Wave in Neonates

This is true until?

###
Upright

Inverts after 7 days of age

3

## By what age does the T Wave invert?

### 7 years

4

## QRS Axis in Adults

### 0-90 Degrees

5

## QRS Axis of Neonates

### +60-160 Degrees

6

## QRS Axis by 1 Year of Age

### +10-100 Degrees

7

##
[Heart Rate]

Birth

2 year

4 year

10 years

###
B: 110-150 BPM

2: 85-125 BPM

4: 75-115 BPM

10 Years: Adult Values

8

## In an ECG Lead, where would the tall QRS be in a child?

###
V4R

V1

V2

This is because the right ventricle is bigger in the child

9

## How do you use the Rule of Three Hundred

###
300

150

100

75

60

Depending on the number of boxes between the Rs

10

## Formal Formula for Measurement of Rate in an ECG

### 1500 / # Small Squares Between R-R

11

## Describe: P Wave in Ectopic Rhythm

### Inverted P Wave and I in AVL

12

##
Supraventricular Tachycardia Rate:

Infant

Child

###
> 220 BPM

> 180 BPM

[BAKA LANG, BAKA LANG LUMABAS SA EXAM]

13

## What do you look for first when diagnosing pediatric ECGs?

###
Age

Rate

Rhythm

14

##
[Determination of QRS Axis]

II and III have to be how many degrees from AVF?

### 30 Degrees

15

##
[Determination of QRS Axis]

AVR and AVL have to be how many degrees from 1?

### 30 Degrees

16

## When is the QRS Positive?

### When there is depolarization going towards the lead

17

## When is the QRS Negative?

### When there is depolarization going away from the lead

18

## Perpendicular Leads

###
I AVF

II AVL

III AVR

19

## Determination of Axis

###
Find Equiphasic Lead

Perpendicular Lead

Determine if Perpendicular is + or -

Axis corresponds to that lead

20

##
Right Ventricular Hypertrophy in Pediatric ECG

Describe:

R

S

R/S

Q

T

###
R: Tall R V4R, V1 V2

S: Deep in V5 and V6

R/S: More than 2

R/S: V6 <1

Q: QR in V1 or V3R, V4R

T: Upright T in V1 after 3 days (Should be inverted in patients that are not neonates)

21

##
Left Ventricular Hypertrophy in Pediatric ECG

Describe:

R

S

R/S

Q

T

###
R: Tall R V6 >25mm

S: SV1 >20mm

R/S: V1 < 0.8 under 1 year

Q: Q >= 5 mm in V5 V6

T: T wave inversion in V5 V6

22

## Normal PR Interval

### 0.12-0.20 second

23

##
Prolonged PR Interval would be?

This is described as?

###
>0.20 second

1st degree AV Block

24

##
Formula for QT Interval

What is it called?

###
QTc = QTa / SquareRoot of (RR x 0.04)

Bazett's Formula

25

## Abnormal QT Interval

### >0.44

26

## Non-Pathologic Q Waves in Pedia

###
Less than 2 small squares deep

Less than one small square wide

< 25% of the amplitude of the corresponding R wave

27

## T Wave is Positive or Negative between 1 week and adolescence?

### Negative

28

## What does a U Wave indicate?

### Repolarization of Purkinje Fibers

29