A client with type II diabetes is scheduled to have a computed tomography (CT) scan with IV contrast of the brain to rule out a brain tumor. What health teaching would the nurse include?
Your provider will obtain a signed consent from you prior to the completion of the CT scan.

You’ll need to let your doctor know if you have seafood allergies.

Do not take your scheduled dose of Metformin 500 mg PO.

The procedure will be done at the bedside.

Take your Metformin as usual before the test.

Answer and Explanation

The Correct Answer is B

Title: Choice A Reason:

Patients with seafood allergies may have a higher risk of allergic reactions to iodinated contrast media used in CT scans. However, this is not a definitive contraindication. The nurse should inform the patient to notify their healthcare provider about any known allergies, including seafood, as a precautionary measure. This allows the healthcare team to take necessary steps to prevent any adverse reactions, such as premedication with antihistamines or corticosteroids.

Title: Choice B Reason:

Metformin is a common medication used to manage type II diabetes. When a patient is scheduled for a CT scan with IV contrast, it is crucial to withhold Metformin before the procedure. This is because the combination of Metformin and iodinated contrast can increase the risk of contrast-induced nephropathy (CIN) and lactic acidosis, a rare but serious condition. The general recommendation is to stop Metformin at the time of or prior to the procedure and withhold it for 48 hours after the procedure, resuming only after renal function has been re-evaluated and found to be normal.

Title: Choice C Reason:

CT scans, especially those requiring IV contrast, are typically performed in a radiology suite equipped with the necessary technology and medical personnel. Performing such a procedure at the bedside is uncommon and not standard practice due to the need for specialized equipment and immediate access to emergency care in case of adverse reactions. Therefore, this statement is incorrect.

Title: Choice D Reason:

Taking Metformin as usual before the test is not recommended due to the risk of lactic acidosis when combined with iodinated contrast. As previously mentioned, Metformin should be withheld before and after the procedure until renal function is confirmed to be normal. This precaution helps to prevent any potential complications associated with the interaction between Metformin and the contrast agent.

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Correct Answer is B

Explanation

Choice A Reason:

Documenting that the nasogastric tube is in the correct place is not appropriate in this scenario. A gastric pH of 7.35 is too high for stomach contents, which typically have a pH between 1.5 and 3.5. This high pH suggests that the tube may be misplaced, possibly in the respiratory tract or another non-gastric location. Therefore, documenting the tube as correctly placed could lead to serious complications if the tube is indeed misplaced.

Choice B Reason:

Notifying the health care provider is the most appropriate action. A pH of 7.35 is indicative of a potential misplacement of the nasogastric tube. The health care provider needs to be informed immediately to take corrective actions, such as ordering an X-ray to confirm the tube’s placement or re-evaluating the tube’s position. This step is crucial to ensure patient safety and prevent complications such as aspiration pneumonia or other adverse effects.

Choice C Reason:

Checking for placement by auscultating for air injected into the tube is an outdated and unreliable method. This technique can sometimes give false assurance of correct placement, as the sound of air can be heard even if the tube is in the respiratory tract. Current best practices recommend using pH testing and radiographic confirmation for accurate placement verification.

Choice D Reason:

Retesting the pH using another strip might seem like a reasonable step, but it is not the best immediate action. If the initial pH test shows a value of 7.35, it is unlikely that retesting will yield a significantly different result. The priority should be to notify the health care provider to address the potential misplacement promptly.

A. Continue to monitor. B. Administer clonidine. C. Administer atropine. D. Administer digoxin.

Correct Answer is A

Explanation

Choice A Reason:

Continuing to monitor is the most appropriate action in this scenario. The patient has a regular heart rhythm and a heart rate of 60 beats per minute, which is within the normal range for sinus bradycardia. The PR interval is 0.20 seconds, which is at the upper limit of normal. The patient’s vital signs are stable, with a blood pressure of 118/68 mm Hg, a respiratory rate of 16 breaths per minute, and a temperature of 98.8°F (37°C). There are no signs of hemodynamic instability or symptoms that would necessitate immediate intervention. Therefore, ongoing monitoring is sufficient to ensure the patient’s condition remains stable.

Choice B Reason:

Administering clonidine is not appropriate in this situation. Clonidine is an antihypertensive medication that can lower blood pressure and heart rate. Given that the patient’s blood pressure and heart rate are within normal ranges, administering clonidine could potentially cause hypotension and bradycardia, leading to adverse effects. Therefore, clonidine is not indicated for this patient.

Choice C Reason:

Administering atropine is not necessary for this patient. Atropine is used to treat symptomatic bradycardia, where the heart rate is abnormally slow and causing symptoms such as dizziness, hypotension, or syncope. In this case, the patient’s heart rate is 60 beats per minute, which is within the normal range for sinus bradycardia, and there are no symptoms indicating the need for atropine. Therefore, atropine is not required.

Choice D Reason:

Administering digoxin is also not appropriate. Digoxin is a cardiac glycoside used to treat heart failure and certain types of arrhythmias, such as atrial fibrillation. It can slow the heart rate and increase the force of cardiac contractions. In this scenario, the patient does not have any indications for digoxin therapy, such as heart failure or atrial fibrillation, and their heart rate is already within the normal range. Therefore, digoxin is not indicated.

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A client with type II diabetes is scheduled to have a computed tomography (CT) scan with IV contrast of the brain to rule out a brain tumor. What health teaching would the nurse include?Your provider will obtain a signed consent from you prior to the completion of the CT scan.

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is assessing for correct placement of a nasogastric tube. The nurse aspirates the stomach contents, checks the gastric pH, and notes a pH of 7.35. Based on this information, which action should the nurse take at this time?

Correct Answer is B

Explanation

Correct Answer is A

Explanation

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A client with type II diabetes is scheduled to have a computed tomography (CT) scan with IV contrast of the brain to rule out a brain tumor. What health teaching would the nurse include?
Your provider will obtain a signed consent from you prior to the completion of the CT scan.