ECG, CT

Question 1

Give appearance of extradural, subdural, subarachnoid, intracerebral

Answer 1

extradural - concave shape
subdural - crescent shape
subarachnoid - blood in ventricles or inbetween gyri
intracerebral - occurs in brain tissue

Question 2

how long is 1 small box on ecg

Answer 2

200 ms

Question 3

draw positions of where leads look at heart

Answer 3

see book

Question 4

What would cause right and left axis deviation

Answer 4

right - pulmonary embolus (RVH)

left - conduction defect, LVH

Question 5

how does WPW and heart block affect PR interval

Answer 5

WPW shortens

heart block lengthens

Question 6

hyperkalemia on ecg

Answer 6

tall tented T waves, widened QRS, P wave flattens

Question 7

hypokalaemia on ecg

Answer 7

stunted T waves, U wave, ST depression

Question 8

NSTEMI ecg

Answer 8

ST-segment depression, T-wave inversion.

Question 9

STEMI ECG

Answer 9

ST elevation, Q waves, T wave inversion

Question 10

What would u see on ventricular ectopic beats ECG

Answer 10

QRS being wider and taller every other beat or 3rd beat etc.

Question 11

Explain ecg findings on 1st degree, type 1 and 2 2nd, 3rd degree heart block

Answer 11

1st degree - PR longer
Type 1 2nd - PR elongates until QRS dropped
type 2 2nd - PR normal but QRS sometimes dropped
type 3 - P waves and QRS have no relationship.