MAIN Flashcards
For the test, brutha!
♥ Flow and Anatomy
Superior/Inferior Vena Cava → R Atrium → Tricuspid Valve → R Ventricle → Pulmonary Valve → Pulmonary Artery → Lungs → Pulmonary Vein → L Atrium → Mitral Valve → L Ventricle → Aortic Valve → Aorta
5 Chest Pain (Coronary Artery Disease) Syndromes
Angina
Extertional Angina
Prinzmetal’s Angina or Variant Angina
Stable Angina
Unstable Angina
Angina 📃
chest pain r/t
myocardial anoxia
Extertional Angina 📃
& indicative of…?
d/t ↑ myocardial O2 demands (4Es: exertion, eating, emotions, exposure [to cold temps]), indicative of atherosclerosis
Prinzmetal’s Angina or Variant Angina 📃
at rest, sleep, or w/o evidence provocation, indicative of coronary vasospasm
Stable Angina 📃
exertional angina but relieved w/ rest
Unstable Angina 📃
within 2 months recent onset that severely limits activity and newly occurs at rest
Risk Factors CAD (7)
Smoking
Diabetes
HTN
↑ Cholesterol
Obesity
Sedentary Lifestyle
↓ Serum Folate
Chest Pain Determinant Algorhythm
Non-Cardiac = Panic, anxiety, drug use, GI
Cardiac= Ischemic [angina] v. Non-Ischemic [pericarditis, tamponade, etc.]
Ischemic = Unstable [partial occulsion V. completely blocked = MI] v. Stable
Acute Coronary Syndrome 📃
↓ blood supply to ♥ d/t CAD
3 Keys to Dx Unstable Angina
S/S
12 Lead EKG
Blood Work (Cardiac Markers)
Fat buildup & Acute Coronary Syndrome Pathophys.
Clinically silent until obstructive r/in exertional angina. When plaque fissues r/in thrombus, MI
5 key S/S: ♥ Attack
Pain: back neck jaw, LUE
Chest discomfort
SOB, dyspnea → weakness
N/V + indigestion
♥ Attack Chemical Marker: (CK) 📃, onset high, WDL for ♀/♂
Type 1, 2, 3 purpose
Creatine Kinase (2-MB specifically), ↑ w/ ♥ muscle damage
↑ 3-6 hrs after MI, peak 12-24hrs, resets in 2-3 days
♂ 60 -170 U/L
♀ 40 - 140 U/L
CK-1 BB is for brain
CK-3 MM is for muscle tissue
♥ Attack Chemical Marker: Troponin 📃, onset high, WDL
cTnT and cTnI regulate ♥ force/speed contraction
leak from ♥ during ischemia
↑ 3-5 hrs after MI
cTn T peaks 4-6hrs, cTn I peaks 14-18hrs,
cTn T reset 21 days, cTn I reset 5-7 days
cTn T WDL < 0.1 mcg/L / cTn I WDL <3.1 mcg/L
MI Immediate 3 Tx (Time is Muscle!)
ASA 325 mg PO qD
P2Y12 (Plavix, Brilinta, Effient)
Hep gtt or Lovenox
Effects of Ischemia, Injury, Infarction on EKG
Ischemia = ST ↓ or inversion
Injury = ST ↑ (w/ 2 cont. leads, > 1mm)
Infarction = ▲ Q waves
ST Elevation in Leads, Artery Determinant
II, III, aVF = R Inferior Coronary Artery
I, aVL, V5 = Lateral Circumflex
(V1, V2, Anterior Septal), V3, V4 = L Anterior Descending
aVR= L main
Memorize the worksheet(?)
3 Long-Term TX for MI
Anti-thrombin/platelet
Nitroglycerin for pain
Reperfusion (for ↑ ST) - Thrombolytics, Percutaneous Coronary Intervention, and/or Coronary Artery Bypass (CABG)
Thrombolytic Contraindications (6)
Active Bleeding
Aortic Dissection
Cerebral Neoplasm
Cerebral Vascular Disease
HX intracranial hemorrhage
Intracranial/spinal sx or trauma w/in 2 months
Pre(7)/Post(7) MI Stent RN Care
Pre: ✔️ BUN, Creatinine, Anticoags, Lytes, Dye Allergy, Hydration, Limb Circulation
Post: ✔️ Groin site bleed, Distal circulation, Dysrhythmias, Coronary Artery Spasm, Ischemia, Stroke, Discharge edu
♥ PCI Complications (4)
Bleeding r/t hematoma
Retroperitoneal bleed
ST ▲ r/t in-stent thrombosis
Pseudoaneursyms
🥬(CABG)📃 and 🎯
Coronary Artery Bypass
Revascularlize ♥ w/ transplanted vessels
🥬 Post-Op RN 👀 (7)
Pain
Infection
Volume Overload
Stroke Dysrhythmias
MI
Impaired gas exchange
Impaired work of breathing