A nurse is reviewing the medication record of a client who has hypertension. Which of the following medications should the nurse administer to lower the client's blood pressure?

A. Levothyroxine. Levothyroxine is used to treat hypothyroidism and does not have a significant interaction with furosemide. However, both medications require careful monitoring, as hypothyroidism can affect fluid balance, but they are not contraindicated together.

B. Cetirizine. Cetirizine is an antihistamine used to treat allergies and does not interfere with furosemide’s effects. While some antihistamines can cause mild fluid retention, this does not significantly impact furosemide therapy, making them safe to use together.

C. Lithium carbonate. Furosemide is a loop diuretic that increases sodium excretion. Since lithium is excreted through the kidneys in a sodium-dependent manner, a loss of sodium due to diuretic use can lead to reduced lithium excretion and toxic accumulation. Clients taking lithium should avoid diuretics unless absolutely necessary, and their lithium levels must be carefully monitored if diuretics are required.

D. Albuterol. Albuterol is a bronchodilator used for conditions like asthma and COPD. While both furosemide and albuterol can cause hypokalemia, this does not make them absolutely contraindicated. Instead, potassium levels should be regularly monitored, and supplementation may be needed if hypokalemia develops.

A. Bleeding. Cefotetan, a second-generation cephalosporin, can interfere with vitamin K metabolism, leading to a decreased ability to form blood clots. When combined with NSAIDs, which have an antiplatelet effect, the risk of bleeding increases. Clients taking both medications should be monitored for bruising, prolonged bleeding, or signs of gastrointestinal hemorrhage such as black, tarry stools.

B. Dysrhythmias. Cefotetan and NSAIDs do not have significant cardiac effects that would lead to dysrhythmias. Some antibiotics, such as macrolides and fluoroquinolones, can cause QT prolongation, but cefotetan does not affect cardiac conduction.

C. Dizziness. While NSAIDs can sometimes cause dizziness as a side effect, this is not a significant interaction between cefotetan and NSAIDs. Cefotetan does not commonly cause dizziness unless associated with an allergic reaction or severe hypotension due to an adverse effect.

D. Jaundice. Cefotetan is metabolized by the liver, but it is not highly hepatotoxic and does not commonly cause jaundice. NSAIDs, when used long-term or in high doses, may contribute to liver dysfunction, but this is not a primary concern in the interaction between these two medications.