Cardio Diseases Flashcards
clinical presentation of stable angina
onset during activity or stress
located substernal or left chest with radiation to L upper extremity
lasts <3 min -15 min
tightness, squeezing, pressure (not pain)
worsened with activity, stress
releived by rest and nitroglycerin
PE findings of stable angina
HTN or hypotension Apical systolic murmur Levine's sign Hyperlipidemia RF
What diagnostis studies do you order for stable angina?
CBC, thyroid fn, hsCRP, ECG, ETT
How do you diagnose CAD?
Gold standard: cardiac catheterization ETT Echo stress test nuclear stress test coronary CT angiogram
What will ETT show for stable angina?
inversion of T waves and typical or atypical chest pain (low intermediate or high on Duke)
What is accelerating angina?
change in typical symptoms, greater severity and onset with less physical exertion
Clinical presentation of coronary vasospasm
Looks like STEMI
Typical anginal sx
Sx occur AT REST not w/ exercise
Circadian pattern → sx frequently occur in early morning hours
Significant clamping down of vessel and responds readily to nitro
RF of coronary vasospasm
RF: smoking, cocaine use, hyperventilation, provacative agents (histamine, serotonin)
What is a specific clinical finding for Atrial septal defect?
Wide split S2
Where can you hear murmur for atrial septal defect?
Left upper sternal border because volume overload to the pulmonic region
What are the 4 basic mechanisms of heart failure pathophysiology?
- Increased Blood Volume (Excessive Preload)
- Increased Resistance to Blood Flow (Excessive Afterload)
- Decreased contractility 4. Decreased Filling
What occurs with increased afterload?
CHF, HTN, aortic stenosis
What occurs with decreased afterload?
mitral regurgitation, VSD< AV fistula, septic shock
How do you classift heart failure?
I - No sx
II – Sx with ordinary activity
III – Sx with slight activity
IV – Sx at rest
A – Risk factors but normal heart and no sx
B – Asymptomatic structural heart disease
C – Symptomatic structural heart disease
D – Decompensated heart failure
Who is considered stage A heart failure?
AT RISK Hypertension Known atherosclerotic disease Diabetes Metabolic syndrome Cardiotoxin exposure Familial history of cardiomyopathy
Who is considered stage B?
Prior MI Decreased LV EF Diastolic Dysfunction LVH Asymptomatic Valvular Disease
What are symptoms of right sided heart congestion?
GI discomfort, edema
What are symptoms of left sided heart congestion?
orthopnea, immediate dyspnea, fatigue, trouble concentration
What is elevated JVP a sign of?
elevated intravascular volume
How does dehydration present?
skin cool and dry
How does volume overload present?
skin is wet and warm
How does CHF present?
skin is wet and cool, Fatigue Altered Activity Chest congestion Edema SOB
What are precipitants of heart failure?
calcium channel blockers, beta blockers, NSAIDS, infection, anemia, worsening HTN, dietary indiscretion, arrhythmias
What is the mechanism of action of AVNRT?
Reentry
What is the mechanism of shock?
reduced O2 delivery and tissue perfusion, increased O2 consumption or inadequate O2 utilization
What are the signs and symptoms of shock?
↓CO ↓SVR tachycardia Dyspnea Restlessness Diaphoresis Metabolic acidosis Hypotension Ogliuria cool, clammy skin
What is a key feature of distributive shock?
Decrease systemic vascular resistance
What makes you highly suspicious of shock?
hypotension, tachycardia, oliguria, AMS, tachypnea, cool, clammy, cyanotic skin, metabolic acidosis, hyperlactatemia
What is a PE finding that makes you suspicious of shock in younger patients?
tachycardia
What are mechanisms of arrhythmias?
abnormal impulse formation (automaticity or triggered activity) and/or impulse conduction