ecgs

Question 1

SVT VS ventricular arrytmias

Answer 1

SVT - narrow comlex ?

ventricular - wide QRS

Question 2

ecg features a fib

Answer 2

irregular r -r
narrow complex-usually
unduluting or evn flat baseline

Question 3

?

Question 4

nomral qrs

Answer 4

less than 0.12

Question 5

a flutter charactristics

Answer 5

generally has regular R-R intervals (not always)
saw tooth

Question 6

normal pr interval

Answer 6

0.12 - 0.20

Question 7

when someone is intoxicated with something what are we looking at mainly in ecg

Answer 7

qtc interval

Question 8

relationship of qtc with HR

Answer 8

tachy means shortened QTC
brady means leghtned QTC

Question 9

what are we worried about in a long qtc

Answer 9

ventricular arrhythmias, especially Torsade’s de Pointes

Question 10

causes of prolonged Qtc

Answer 10

Hypokalemia
Hypomagnesaemia
Hypocalcemia
Hypothermia
Myocardial ischemia

Question 11

causes of shortene QTc

Answer 11

hypercalcemia
digoxin

Question 12

normal eletcrical axis

Answer 12

-30 + 90

Question 13

where is lead 1 , 2 , and AVF in realtion to cardiac axis

Answer 13

lead 1 - 0 degress
lead 2 - like 45 degrees
lead AVF - straight down at 90 degrees

Question 14

normal axis leads

Answer 14

lead 1 +
lead 2+
lead avf + +

Question 15

left axis

Answer 15

lead 1 = +
lead AVF=negative
lead 2 = you have to check its negative to confirm for some reason

Question 16

causes of right axis deviation

Answer 16

RV hypertrophy

Question 17

what’s the little saying we use for Right axis deviation

Answer 17

right is reaching

Question 18

what’s the little saying for Left axis devaition

Answer 18

left is leaving

Question 19

septal leads

Answer 19

v1 -v2

Question 20

anterior leads

Answer 20

v3 +v4

Question 21

what lead can we use to calibrate the ecg

Answer 21

AVR should always be pointing RIGHT DOWN if not then you need to repeat the ECG

Question 22

normal postion of v1

Answer 22

should be negative but the initial has a tiny peak of postive deflection

Question 23

normal v6

Answer 23

postive

Question 24

hyperkalemia ecg

Answer 24

tall tented t waves
flattend p waves
prolonged PR
broad qrs

Question 25

HYPOKALEMIA

Answer 25

t wave inversion
u waves
st depression

Question 26

in hyperkalemia will you see all fetaures

Answer 26

no depends on severtiy
initially will be the tall tented

Question 27

where do we find U waves

Answer 27

hypokalemia and bradycardia

Question 28

When looking at ischemia which parts do ecg do we focus on

Answer 28

1. J point
   St
   T wave

Question 29

When looking at ischemia which parts do ecg do we focus on

Answer 29

1. J point
   St
   T wave

Question 30

J point

Answer 30

The transition before ventricular depolarisation and ventricular depolarisation

Question 31

When having ischemia to the heart which part will be affect ed first and why

Answer 31

The subendocaridal because coronary a bring blood from outside to the inner most heart, so if there is obstruction the first part to suffer is the endocardium as blood supply is less! Then as it prolongs it gradually spreads to the outside

Question 32

What to look out in a stemi

Answer 32

St elevation
Lbbb
Hyperactive t waves (symmetrical and tall)
Pathological q waves

Question 33

Stages of a trans mural mi

Answer 33

1. Hyperactute t waves
2. St elevation
3. St elevation and t wave inversion
4. Pathological q waves

Question 34

How do you tell the difference between ischemia or infarction

Answer 34

Q waves deep

Question 35

How to tell years after if someone had an mi

Answer 35

Q waves (should be more than 1 small box width or more than 1/3 the R wave

Question 36

What are precocial leads

Answer 36

V1-6

Looking at the heart from front side

Question 37

What are precocial leads

Answer 37

V1-6

Looking at the heart from front side