A nurse is preparing to administer lansoprazole 30 mg PO daily to a client. The amount available is lansoprazole 10 mg per tablet. How many tablets should the nurse administer per dose?

(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Choice A reason: Aspirating for a blood return before depressing the plunger is not recommended when administering enoxaparin. Enoxaparin is given subcutaneously, and aspiration is not necessary for subcutaneous injections. Aspiration can cause tissue damage and increase the risk of bleeding.

Choice B reason: Inserting the needle at a 45-degree angle is appropriate for subcutaneous injections if the patient has limited subcutaneous tissue. However, for enoxaparin, the preferred angle is 90 degrees to ensure the medication is delivered into the subcutaneous tissue.

Choice C reason: Not expelling the air bubble in the prefilled syringe is correct. The air bubble in the prefilled syringe of enoxaparin is designed to ensure the entire dose is administered and to prevent leakage of the medication. Expelling the air bubble can result in an incomplete dose.

Choice D reason: Administering the medication 2.54 cm (1 inch) from the umbilicus is correct for subcutaneous injections in the abdomen. However, this statement alone does not address the specific consideration of the air bubble in the prefilled syringe, which is crucial for enoxaparin administration.

Choice A reason: Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor used to treat high blood pressure and heart failure. ACE inhibitors can cause orthostatic hypotension, especially in older adults, due to their vasodilatory effects, which can lead to a sudden drop in blood pressure upon standing.

Choice B reason: Clopidogrel is an antiplatelet medication used to prevent blood clots in patients with cardiovascular diseases. It does not typically cause orthostatic hypotension. Its primary side effects are related to bleeding and bruising, rather than blood pressure changes.

Choice C reason: Atorvastatin is a statin used to lower cholesterol levels and reduce the risk of cardiovascular disease. Statins do not generally cause orthostatic hypotension. Their side effects are more commonly related to muscle pain and liver enzyme abnormalities.

Choice D reason: Furosemide is a loop diuretic used to treat edema and hypertension. Diuretics can cause orthostatic hypotension by reducing blood volume and altering electrolyte balance, leading to a decrease in blood pressure upon standing.

Choice E reason: Doxazosin is an alpha-blocker used to treat high blood pressure and benign prostatic hyperplasia. Alpha-blockers are well-known for causing orthostatic hypotension due to their mechanism of action, which involves relaxing blood vessels and reducing blood pressure.