Cardiology Flashcards
1
Q
Contraindications to thrombolysis
A
Absolute: Active bleeding Suspected aortic dissection Significant closed head/facial trauma < 3 months Ischaemic stroke < 3 months Known cerebral vascular lesion Known malignant intracranial neoplasm Any prior intracranial haemorrhage
Relative: On anticoagulants Non-compressible vascular puncture Recent major surgery < 3 weeks Traumatic/prolonged CPR > 10 mins Recent internal bleeding < 4 weeks Suspected pericarditis Advanced liver/metastatic disease Chronic poorly controlled HTN Severe uncontrolled HTN > 180 systolic 110 diastolic Ischaemic stroke > 3 months Pregnancy or 1 week postpartum
2
Q
Territories of infarct
A
I and aVL
- high lateral: LCx
II, III, aVF
- inferior: RCA or LCx
3
Q
Causes of ST elevation
A
LVH LBBB Pericarditis Left ventricular aneurysm Early depolarisation Brugada Wellens Osborn J wave Hyperkalaemia Acute cerebral haemorrhage PE Ventricular paced rhythm Post cardioversion
4
Q
LVH criteria
A
Sokolov Lyon criteria:
S wave in V1 and tallest R wave in V5-V6 = 35mm
ST segment depression in left sided leads (LV strain pattern) with TWi
- I, aVL, V5, V6
5
Q
Killip classification
A
No signs of congestion
S3 and basal rales on auscultation
Acute pulmonary oedema
Cardiogenic shock
6
Q
Drugs causing QT prolongation
A
Antipsychotics: Droperidol Haloperidol Chlorpromazine Olanzapine Amisulpride
1a antiarrhythmics:
Quinidine
Procainamide
1c antiarrhythmics:
Flecainide
Type III antiarrhyhmics:
Sotalol
Amiodarone
TCAs
Antidepressants
Antihistamines:
Loratadine
Diphenhydramine
Other: Chloroquine Hydroxychloroquine Quinine Macrolides
7
Q
Causes of t wave inversion
A
Persistent juvenile t waves PE Bundle branch block LVH MI Raised ICP HCOM
