EKG Flashcards
1
Q
What coronary artery is affected in inferior MI?
A
RCA
2
Q
the most common way to calculate axis deviation is?
A
2 lead system
3
Q
Patient 100% AV paced will you see ST changes?
A
No
4
Q
right axis deviation will show what in lead I and lead II?
A
- lead I and + lead II (opposite for left)
5
Q
If you have AV sequential pacemaker it will mimic the normal cycle by ……?
A
atrium contracting firsts
6
Q
If patient having left ventricular hypertrophy what would you see on EKG?
A
- tall narrow QRS complex
- ventricular repolarization changes
- deep S wave in leads V1 and V2
- tall R waves in leads V5 and V6
7
Q
hypokalemia changes on EKG
A
- widening of QT interval (>.45)
- depressed ST segment
- biphasic t wave and predominant u wave
8
Q
hyperkalemia
A
- tall t waves
- prolonged PR>.20, QRS >.12
9
Q
best description of 2nd degree av block
A
atrial rate>than ventricular rate
pr constant
10
Q
pericarditis
A
-ST elevation in almost every lead
11
Q
acute MI
A
- t waves tall
- st segment elevation 1-2 mm. in at least 2 contingent leads
- no q waves (appear 8-12 hours after if artery not open)
- r waves dependent on location and reciprocal changes
12
Q
What leads to look for in inferior MI?
A
II, III, AVF
