Investigationan And Management Of Patiens With Acute Coronary Syndrome Flashcards
What is an acute coronary syndrome?
When a coronary artery thickens and the atherosclerotic plaque ruptures releasing thrombogenic material leading to thrombus formation
If a patient does not have ST-segment elevation how can you tell they have had a myocardial infarction?
Retro sternal chest pain radiating the jaw and/or shoulder
Elevated troponin
Pathological Q waves
Intracoronary thrombus on angioplasty
What is a Type 1 Myocardial Infarction?
Atherosclerotic plaque ruptures which leads to an intraluminal thrombus forming leading to myocardial necrosis
What is a Type 2 Myocardial Infarction?
When an MI occurs as a result of something other than a coronary plaques instability
Due to supply and demand mismatch
If Jugular Vein Pressure is increased what may this indicate?
Right heart failure
What are the 3 main coronary arteries?
Right coronary artery
Left coronary artery:
2 branches
-Left Anterior Descending
-Circumflex
What does the right coronary artery supply?
Supplies SAN and AVN
RA + RV
If the right coronary artery gets occluded what happens to the the heart rate?
Reduces due to the right coronary artery supplying the SAN and AVN
If leads II, III and aVF are affected (ST elevation or depression) in an ECG what wall is this looking at of the heart?
What coronary artery is therefore affected?
Inferior wall
Right coronary artery
If leads V1, V2, V3 and V4 are affected (ST elevation or depression) in an ECG what wall is this looking at of the heart?
What coronary artery is therefore affected?
Anteroseptal
Left Anterior Descending artery
If leads I, aVL, V5 and V6 are affected (ST elevation or depression) in an ECG what wall is this looking at of the heart?
What coronary artery is therefore affected?
Lateral wall
Circumflex
What can be viewed in an ECG with a STEMII?
ST elevation
T wave inversion
Pathological Q waves
What isoforms of Troponin are measured and are specific to cardiac myocyte death?
Troponin I
Troponin T
What type of ultrasound is used to view the heart to assess coronary arteries?
Echocardiogram
What drugs are used in the management of a STEMI?
Aspirin (Antiplatelet)
Ticagrelor (Anticoagulant)
Morphine (Analgesic)
Metoclopramide (Antiemetic/anti vomit)