A client is scheduled for a spiral computed topography (CT) scan with contrast to evaluate for pulmonary embolism. Which information in the client’s history requires follow-up by the nurse?
CT scan that was performed 6 months earlier.
Takes metformin hydrochloride for type 2 diabetes.
Metal hip prosthesis was placed two years ago.
Report on client’s sobriety for the last five years.
The Correct Answer is B
Metformin is a medication that can affect kidney function. Since contrast dye used in CT scans is processed through the kidneys, it is important for the nurse to follow up on the client’s use of metformin before the CT scan with contrast. The client may need to temporarily stop taking metformin before and after the procedure to prevent any potential harm to their kidneys.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Before administering the first dose of any antibiotic, it is essential to obtain a culture and sensitivity test to identify the causative organism and determine the most effective antibiotic to use. Administering a broad- spectrum antibiotic before obtaining a culture and sensitivity test may lead to the development of antibiotic-resistant strains of bacteria, making it more difficult to treat the infection in the future.
Options a, c, and d are not as important as obtaining a culture and sensitivity test. Monitoring for signs of sodium and fluid retention, irrigation and topical antibiotic application to the wound area, and completing blood count and serum electrolytes are important, but obtaining a culture and sensitivity test is the priority.

Correct Answer is A
Explanation
Lithium carbonate is a mood stabilizer commonly used to treat bipolar disorder. However, it has a narrow therapeutic index and requires careful monitoring of serum levels to avoid toxicity. One of the major concerns with lithium therapy is the potential for drug interactions and toxicity. NSAIDs such as ibuprofen and naproxen can increase lithium levels by reducing its excretion and can lead to lithium toxicity. Therefore, it is essential to instruct the client to eliminate the use of NSAIDs while taking lithium.
Option b) Avoid consuming all foods that contain iodine is incorrect because iodine is not contraindicated with lithium. However, excessive iodine intake can interfere with thyroid function, which can exacerbate mood instability.
Option c) Notify healthcare provider prior to dental procedures is not specific to lithium therapy and is a general precaution that patients with bipolar disorder should follow before any medical or dental procedures.
Option d) Monitor blood glucose levels daily is also not directly related to lithium therapy. While lithium can cause diabetes insipidus, which can lead to excessive thirst and urination, it does not typically affect blood glucose levels.
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