Correct Answer: B

Rationale: The correct answer is B. The practical nurse should instruct the client that their sexual partner(s) should also be treated when dealing with vaginal trichomoniasis. This is crucial to prevent reinfection as sexual intercourse is the route of spread for this infection.

Correct Answer: C

Rationale: The correct insulin type for the nurse to mix into the intravenous fluids is regular insulin. In the scenario of diabetic ketoacidosis (DKA), rapid reduction of blood glucose levels is crucial. Regular insulin has a fast onset of action, making it suitable for intravenous administration to address the high blood sugar levels seen in DKA. Isophane, Glargine, and Detemir are not appropriate choices for intravenous administration in this emergency situation as they are intermediate-acting or long-acting insulins.

Correct Answer: A

Rationale: The correct answer is A: Hypotension. Diltiazem is a calcium channel blocker that can cause hypotension by relaxing blood vessels and reducing blood pressure. Monitoring blood pressure is essential to detect and manage this potential side effect.

Correct Answer: B

Rationale: Tremors are a common symptom of theophylline toxicity. Other symptoms that may indicate theophylline toxicity include nausea, vomiting, and seizures. It is important for the nurse to monitor the client closely for these signs of toxicity and report them promptly to the healthcare provider to prevent further complications.

Correct Answer: A

Rationale: Amlodipine is a calcium channel blocker commonly associated with causing peripheral edema as an adverse effect. The nurse should monitor the client for signs of swelling, particularly in the lower extremities, as it may indicate a need for dosage adjustment or further evaluation.