PRECAUTIONS Do not administer unless solution is clear and seal is intact. Discard unused portion. Blood levels of sodium, potassium, calcium, magnesium, phosphorus and chloride should be monitored frequently during TPN (total parenteral nutrition). Significant deviations from normal may justify further supplementation or substitution of individual electrolyte additives (in place of TPN Electrolytes) to tailor the electrolyte supplement to meet individual patient requirements. In patients with renal dysfunction or cardiovascular insufficiency, especially in elderly or postsurgical patients, consider the potential effects of sodium (35 mEq) and potassium (20 mEq) present in TPN Electrolytes. Extraordinary electrolyte losses are not necessarily corrected by TPN Electrolytes. In protracted vomiting or diarrhea or in patients with fistula drainage or nasogastric suction, separate replacement therapy may be necessary, based upon analysis of losses sustained. Caution must be exercised in the administration of parenteral fluids, especially those containing sodium ions, to patients receiving corticosteroids or corticotropin. Solutions containing acetate ions should be used with caution as excess administration may result in metabolic alkalosis. Pregnancy Category C. Animal reproduction studies have not been conducted with TPN Electrolytes. It is also not known whether TPN Electrolytes can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. TPN Electrolytes should be given to a pregnant woman only if clearly needed. GERIATRIC USE An evaluation of current literature revealed no clinical experience identifying differences in response between elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. Sodium ions and phosphorus are known to be substantially secreted by the kidney, and the risk of toxic reactions may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function.