2. Pericarditis Is an inflammatory disease of the pericardium, directly involving the epicardium. Deposits of inflammatory cells and variable amounts of serous, fibrous, purulent, or hemorrhagic exudates within the pericardial sac.

4. Electrolyte Imbalance Hyperkalemia –Excess of serum potassium above normal levels of 3.5 - 5.0 mEq/L –Kidney failure and certain diuretics Hypokalemia –Deficiency of serum potassium below 3.5 mEq/L –Vomiting, gastric suction, excessive diuretics Hypercalcemia –Excess of serum calcium above normal levels of 2.1-2.6 mEq/L –Adrenal insufficiency, hyperparathyroidism, immobilization, kidney failure, malignancy, Vitamin A & D intoxication Hypocalcemia –Shortage of calcium below 2.1 mEq/L –Chronic steatorrhea, Diuretics, Rickets, Pregnancy Respiratory alkalosis, Hyperventilation

8. Drug Effect All of the following in a therapeutic range produces characteristic changes in the ECG Digitalis –to treat CHF, A-fib, A-flutter, PSVT Procainamide –Antiarrhythmic drug used to treat atrial and ventricular cardiac rhythm disturbances Quinidine –Antiarrhythmic drug used to control atrial fibrillation