34. STAGE DISABILITY CLASS 1 MILD No symptoms Can perform ordinary activities without any limitations CLASS 2 MILD Mild symptoms - occasional swelling Somewhat limited in ability to exercise or do other strenuous activities CLASS 3 MODERATE Noticeable limitations in ability to exercise or participate in mildly strenuous activities Comfortable only at rest CLASS 4 SEVERE Unable to do any physical activity without discomfort Some HF symptoms at rest
Editor's Notes
continuous positive airway pressure, or CPAP.
Quinidine, verapamil, and amiodarone increases plasma levels of digoxin (by displacing tissue binding sites and depressing renal digoxin clearance) so plasma digoxin must be monitored carefully.
Digitalis-induced progressive elevation of the serum potassium concentration also suggests imminent cardiac arrest. If the potassium concentration exceeds 5 mEq/L in the setting of severe digitalis intoxication, therapy with DIGIBIND is indicated.
Milrinone (Primacor) is a phosphodiesterase III inhibitor. Chronotropic, arrhythmogenic, and vasodilative effects are negligible with dobutamine.