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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A reason: Pink frothy sputum is a classic sign of pulmonary edema, which can occur as a result of oxygen toxicity. When the alveoli in the lungs fill with fluid, it can lead to this type of sputum. This is a critical indicator that the client is experiencing severe respiratory distress and requires immediate medical attention.
Choice B reason: Substernal discomfort or chest pain is another symptom of oxygen toxicity. This discomfort arises due to the irritation and inflammation of the lung tissues caused by high levels of oxygen. It is essential to monitor and address this symptom promptly to prevent further complications.
Choice C reason: Nail clubbing is typically associated with chronic hypoxia and long-term lung diseases, but it is not an acute indicator of oxygen toxicity. Therefore, it is not relevant in this context.
Choice D reason: Restlessness is a common early sign of hypoxia and can also indicate oxygen toxicity. When the brain does not receive adequate oxygen, it can lead to symptoms such as restlessness, confusion, and agitation. This symptom should be taken seriously and addressed immediately.
Choice E reason: Cyanosis at the nail beds indicates a lack of oxygen in the blood, but it is not specific to oxygen toxicity. It can occur in various conditions where there is inadequate oxygenation, such as chronic obstructive pulmonary disease (COPD) or heart failure.
Correct Answer is ["B","C","E"]
Explanation
Choice A: Lean on your back with your knees bent.
Reason: This instruction is incorrect. Pursed lip breathing is typically performed in a seated position with the neck and shoulders relaxed. Lying on your back with knees bent is not a recommended position for this breathing technique.
Choice B: Use your abdominal muscles to squeeze air out of your lungs.
Reason: This instruction is correct. Using the abdominal muscles helps to expel air more effectively from the lungs, which is a key component of pursed lip breathing. This technique helps to improve ventilation and reduce the work of breathing.
Choice C: Breathe out slowly without puffing your cheeks.
Reason: This instruction is correct. Breathing out slowly through pursed lips without puffing the cheeks helps to keep the airways open longer, allowing more air to be expelled from the lungs. This technique is particularly beneficial for individuals with chronic obstructive pulmonary disease (COPD) or other respiratory conditions.
Choice D: Focus on inhaling and holding your breath as long as you can.
Reason: This instruction is incorrect. The focus of pursed lip breathing is on controlled exhalation rather than holding the breath. Inhaling should be done slowly through the nose, and exhaling should be prolonged through pursed lips.
Choice E: Exhale at least twice the amount of time it took to breathe in.
Reason: This instruction is correct. The exhalation phase should be longer than the inhalation phase, typically taking at least twice as long. This helps to improve the efficiency of breathing and reduce shortness of breath.
Choice F: Open your mouth and breathe deeply.
Reason: This instruction is incorrect. Pursed lip breathing involves breathing in through the nose and exhaling through pursed lips. Opening the mouth and breathing deeply is not part of this technique.
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