Flashcards in ECG Deck (70)
PR interval length?
0.12 - 0.2 secs
ST elevation in lead V4 indicates what location of MI?
What should be given in chronic AF?
rate limiting drug and anticoagulation
What are U waves?
deflections following a T wave
Complete heart block shows what changes on an ECG?
absence of AVN conduction, typically bradycardia with uncoupled atrial and ventricular activity
treatment of symptomatic mobitz type I
If bradycardia is symptomatic or less than 40bpm then treat with...
What two rhythms are shockable?
VF and pulseless VT
Causes of Mobitz type II
anterior MI, Surgery, SLE, rheumatic fever, hyperkalaemia
ST elevation in lead III indicates what location of MI?
ST elevation in lead aVL indicates what location of MI?
Pathological Q waves may occur when...
There has been recent infarction
Hyperkalaemia may cause which ECG changes?
absent P waves, tall tented T waves, widened QRS
ST elevation in lead I indicates what artery in the MI?
ECG changes in Mobitz type II heart block?
intermittent non-conducted P waves with no PR prolongation. Usually 2:1 or 3:1
HR is determined in bpm as what with the large squares on the ECG paper?
300/no. of large squares between beats
300/no. of large squares between R-R
What happens in the TP segment?
QT interval length?
0.36 -0.44 secs
What are pathological Q waves?
>0.04s wide and >2mm deep
The WilliaM pattern in V1 and V6 can be seen in which condition?
Right bundle branch block
Normal p wave length
ST elevation in lead V3 indicates what location of MI?
Notched QRS complexes indicate...
Left bundle branch block
ST elevation in lead V1 indicates what location of MI?
Which Lead normally provides the ECG rhythm strip?
What can be seen in First degree heart block?
prolonged PR interval >200ms
What are pathological Q waves a sign of...
Hypokalaemia may cause which ECG changes?
small T waves, prominent U waves
ST elevation in lead V2 indicates what location of MI?