Dunphy Cardiology Final Exam Questions with Correct Answers

Dunphy Cardiology Final Exam Questions with Correct Answers STROKE can be the presenting manifestation as a result of emboli flowing from clot formation in the dysfunctional atrium into the cerebral vasculature. Pts w/ afib on coumadin must refrain from foods containing high vitamin K due to it being the antagonist for coumadin and watch meds that interact with coumadin effectiveness Risk of bleeding due to anticoagulant therapy A-fib defined - Answer-Irregular, rapid heart rate that may cause symptoms like heart palpitations, fatigue, and shortness of breath. Common after stent or CABG (60-70%). Premature Ventricular Contractions (PVC's) S/S - Answer-often cause no symptoms when symptoms do occur, feel like a flip-flop or skipped-beat sensation in chest Premature Ventricular Contractions (PVC's) Risk Factors - Answer-o Caffeine o Tobacco o Alcohol o Illicit drugs o Exercise-if you have certain type of PVCs o HTN Premature Ventricular Contractions (PVC's) Defined - Answer-An ectopic impulse originating in the ventricle that depolarized ventricles before SA node impulse can come Usually not serious. They do occur in healthy individuals (seen in runners too) However, they may indicate increasing cardiac irritability Premature Ventricular Contractions (PVC's) Associated Conditions - Answer-Fear, anxiety, high emotional states Drugs (caffeine, alcohol, nicotine) Hypoxia Acidosis Cardiac disease Electrolyte imbalances o Hypokalemia and hypomagnesaemia