CARDIOLOGY Flashcards
Modifiable Risk Factors of Ischemic Heart Disease
Dyslipidemia Smoking (2x the risk) HTN Obesity DM
Uncontrollable Risk Factors of Ischemic Heart Disease
Age (W>65, M>55)
Males greater risk than females
Family History
MI Clinical Features
Chest pain (retrosternal, may radiate to arm, neck or jaw, crushing, constricting) Prolonged (>20 mins to hours) N/V Weakness, Dizziness, Palpitations Cold Sweat, impending doom
MI Physical Exam
No real findings typically
May have elevated BP, JVD, presence of S4, displaced PMI
MI Ddx
Pericarditis, PE, aortic dissection, costochondritis, esophageal rupture
MI Diagnostic Factors
Labs: leukocytosis
Echo: wall motion abnormalities
Cardiac Markers: CK
appears 3-6 hrs, lasts 2-4 days, peaks at 24 hrs
Cardiac Markers: Troponin
appears 2-4 hrs, lasts 5-12 days, peaks at 10-24 hrs
Cardiac Markers: Myoglobin
appears 1-2 hrs, lasts
MI EKG Findings
ST elevation (transmural) and Q waves, ST depression (subendocardial)
Inferior Wall
II, III, aVF - RCA
Lateral Wall
I, aVL, V5, V6- Circumflex
Anterior Wall
V2-V4, I, aVL-LCA
Posterior Wall
V1, V2 (ST dep) - RCA, Circumflex
MI Treatment
MONA-Hep-B Morphine Oxygen Nitrates Aspirin Heparin Beta-Blockers
MI Treatment: Antiplatelet Tx
Aspirin, Clopidogrel, thienopyridine, abciximab (glycoprotein inhibitors)
MI Treatment: ACEi
Cardioprotective, start in all patients with AMI, continue if LVH, or HF develops
MI Treatment: Heparin (indications)
Antithrombin Tx: inactivates thrombin and factor X
Indications: those not receiving thrombolytics, those with ST depression, those getting TPA