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 C

Explanation

Choice A Reason: Increased Serum Albumin

Increased serum albumin is not a direct indicator of the therapeutic effect of lactulose in patients with chronic hepatitis. Albumin is a protein made by the liver, and its levels can be affected by liver function. However, lactulose primarily works by reducing ammonia levels in the blood, not by increasing albumin levels. Normal serum albumin levels range from 3.5 to 5.5 grams per deciliter (g/dL). While improved liver function might eventually lead to increased albumin levels, this is not the primary therapeutic effect of lactulose.

Choice B Reason: Decreased Serum Bilirubin

Decreased serum bilirubin is also not a direct indicator of lactulose’s therapeutic effect. Bilirubin is a byproduct of the normal breakdown of red blood cells and is processed by the liver. Elevated bilirubin levels can indicate liver dysfunction, but lactulose’s main role is to reduce ammonia levels, not bilirubin. Normal serum bilirubin levels are typically between 0.1 to 1.2 milligrams per deciliter (mg/dL). While improved liver function might reduce bilirubin levels, this is not the primary goal of lactulose therapy.

Choice C Reason: Decreased Serum Ammonia

Decreased serum ammonia is the correct indicator of the therapeutic effect of lactulose in patients with chronic hepatitis. Lactulose is used to treat hepatic encephalopathy, a condition caused by high levels of ammonia in the blood due to liver dysfunction. Lactulose works by converting ammonia into ammonium, which is then excreted from the body. Normal serum ammonia levels are less than 50 micromoles per liter (µmol/L) in adults56. A decrease in serum ammonia levels indicates that lactulose is effectively reducing the toxic levels of ammonia in the blood, thereby achieving its desired therapeutic effect.

Choice D Reason: Decreased Serum Alanine Aminotransferase (ALT)

Decreased serum alanine aminotransferase (ALT) is not a direct indicator of lactulose’s therapeutic effect. ALT is an enzyme found in the liver that helps convert proteins into energy for liver cells. Elevated ALT levels can indicate liver damage. Normal ALT levels range from 7 to 56 units per liter (U/L). While improved liver function might reduce ALT levels, lactulose’s primary role is to reduce ammonia levels, not directly affect ALT.

A. Ammonia B. Muscle rigidity C. Seizures D. Drooling at times E. Mask-like facial expression F. Shuffled gait

Correct Answer is A

Explanation

Choice A: Ammonia

Lactulose is administered to patients with hepatic encephalopathy to reduce the levels of ammonia in the blood. Hepatic encephalopathy occurs due to the liver’s inability to detoxify ammonia, a byproduct of protein metabolism. Lactulose works by converting ammonia into ammonium, which is then excreted in the stool. This helps to lower blood ammonia levels and alleviate the symptoms of hepatic encephalopathy.

Choice B: Dysarthria

Dysarthria, or difficulty in articulating words, is a common symptom of Parkinson’s disease. It results from the muscle rigidity and bradykinesia (slowness of movement) that affect the muscles involved in speech. Patients with Parkinson’s often have a soft, monotone voice and may struggle with the clarity of their speech.

Choice C: Muscle Rigidity

Muscle rigidity is one of the hallmark symptoms of Parkinson’s disease. It refers to the stiffness and inflexibility of the muscles, which can affect any part of the body. This rigidity can lead to discomfort and pain, and it contributes to the characteristic stooped posture and shuffling gait seen in Parkinson’s patients.

Choice D: Seizures

Seizures are not typically associated with Parkinson’s disease. While Parkinson’s affects the central nervous system, it primarily impacts motor function rather than causing seizure activity. Therefore, this is not a common finding in Parkinson’s patients.

Choice E: Drooling at Times

Drooling, or sialorrhea, is a common symptom in Parkinson’s disease. It occurs due to the decreased ability to swallow saliva, which can result from muscle rigidity and bradykinesia affecting the muscles involved in swallowing. This can be particularly bothersome for patients and may require management strategies.

Choice F: Mask-like Facial Expression

A mask-like facial expression, also known as hypomimia, is a common feature of Parkinson’s disease. It results from the rigidity and bradykinesia affecting the facial muscles, leading to reduced facial expressions and a fixed, staring appearance.

Choice G: Shuffled Gait

A shuffled gait is a characteristic feature of Parkinson’s disease. Patients often take small, shuffling steps and may have difficulty initiating movement. This gait pattern is due to the combination of muscle rigidity, bradykinesia, and postural instability.

Choice H: Stooped Posture

Stooped posture is another common symptom of Parkinson’s disease. It results from the muscle rigidity and postural instability that affect the patient’s ability to maintain an upright position. This can lead to a forward-leaning posture and balance issues.

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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 caring for a client diagnosed with chronic hepatitis who is receiving the medication lactulose. Which of these laboratory results would indicate the medication is achieving the desired therapeutic effect?

Correct Answer is C

Explanation

The nurse is taking care of a client diagnosed with advanced liver disease with hepatic encephalopathy. Lactulose (Cephulac) is administered to the patient to reduce which of the following?

Correct Answer is A

Explanation

A client is on a ventilator. Alarms are sounding, indicating an increase in peak airway pressure. The nurse assesses first for what?

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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.