1821. The normal serum concentration of lithium should be between 0.6 and 1.2 mEq/L.
1822. Foscarnet may cause severe renal toxicity; monitor CrCL closely.
1823. The dose of beta-blocker in the treatment of heart failure should be closely titrated up to the optimal dose and should not be suddenly stopped, as may that induce acute coronary event.
1824. Left-sided heart failure signs are shortness of breath, rales, orthopnea, fatigue and paroxysmal nocturnal dyspnea.
1825. Furosemide causes venodilation and decreases excess sodium and water, decreasing venous return and decreasing preload and relieving pulmonary congestion.
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