A nurse is administering medications to a client. Which of the following medications should the nurse plan to administer by a parenteral route?

A. Fondaparinux: Fondaparinux is an anticoagulant administered subcutaneously, making it a parenteral medication. It is used to prevent or treat deep vein thrombosis and pulmonary embolism, especially post-surgery, and must be given by injection for proper absorption. B. Simvastatin: Simvastatin is an oral medication used to lower cholesterol levels. It is taken by mouth once daily, usually in the evening, and is not formulated for parenteral administration. C. Hydrochlorothiazide: Hydrochlorothiazide is a thiazide diuretic that is typically administered orally in tablet form. While IV formulations may exist, the standard and most common route is oral. D. Captopril: Captopril is an ACE inhibitor used to treat hypertension and heart failure. It is commonly administered orally and requires frequent dosing due to its short half-life. Parenteral forms are not standard for routine use.