T1W2

Question 1

Causes of troponin elevation

Answer 1

PROMPTS
Pericarditis
Renal failure
O - heart failure
MI, myocarditis
PE
Tachyarrhythmias
Sepsis

Question 2

what does the LAD supply

Answer 2

anterior, lateral, apical walls of LV

Question 3

what does RCA supply?

Answer 3

RA, RV + inferoposterior aspects of LV

Question 4

what does LCX supply?

Answer 4

lateral, posterior and inferior segments of LV

Question 5

what does PDA supply?

Answer 5

inferior interventricular septum

Question 6

what artery supplies the SA node?

Answer 6

RCA - 60% of people

LCX - 40 % of people

Question 7

what artery supplies the AV node?

Answer 7

RCA - 90%

LCX - 10%

Question 8

pathological Q waves if…

Answer 8

> 1mm wide
2mm deep
25% depth of QRS
seen in V1-V3 (RSR pattern is normal, no Q waves)

Question 9

universal definition of MI

Answer 9

a single cardiac biomarker >99th pecentile upper reference limit
AND at least 1 or more of:
- clinical sx of ischemia
- ECG shows new ST egment - T wave changes or LBBB
- angiography shows intracoronary thrombus
- imaging (echo, MRI,) evidence of new loss of viable myocardium or new regional wall motion abnormality

Question 10

management of ACS

Answer 10

DRSABCD, defib on hand, quick hx and OE

MONA LISA
Morphine or other analgesia
O2 high flow 15L/min nonrebreather mask (not essential)
Nitrates (GTN)
Aspirin
Leads - 12 lead ECG
IV access
Streptokinase (or other lysis)
Anti platelets

Question 11

risk factors for atypical chest pain presentation

Answer 11

prior heart failure
prior stroke
T2DM
female
age

Question 12

Australian absolute CVD risk calculator criteria and scoring

Answer 12

criteria - age, gender, DM status, smoking, total cholesterol and HDL, ECG LVH, SBP
high risk >15%
intermediate risk 10-15%
low risk <10%