Another tentative diagnosis made for the client is Wernicke's Encephalopathy. If the client has this, the nurse anticipates that the first physician's order will include:

1. A

   Ordering an MRI

2. B

   Administering a steroid medication, such as Decadron

3. C

   Giving Thiamine 100 mg IM STAT

4. D

   Ordering an EEG

Appeared in: AIIMS Delhi NO - 2018

Explanation

• Wernicke's Encephalopathy (WE) is a medical emergency caused by a severe deficiency of thiamine (vitamin B1).
• The immediate priority is to replace thiamine to prevent irreversible brain damage, such as Korsakoff's psychosis, or death.
• Parenteral (IM or IV) administration is necessary for rapid correction because gastrointestinal absorption is often impaired in at-risk populations (e.g., chronic alcoholism).
• The classic triad of symptoms for WE is confusion, ataxia (unsteady gait), and ophthalmoplegia (abnormal eye movements).

Why Other Options Were Wrong

• Option A: An MRI is a diagnostic tool, not a therapeutic intervention. While it can help confirm the diagnosis by showing changes in the mammillary bodies and thalamus, treatment should never be delayed to wait for imaging results.
• Option B: Steroids like Decadron (dexamethasone) have no role in treating the underlying thiamine deficiency of Wernicke's Encephalopathy. This would be an incorrect and ineffective treatment.
• Option D: An EEG is not a primary diagnostic tool for Wernicke's Encephalopathy. It may show non-specific findings like generalized slowing but does not confirm the diagnosis and would delay life-saving treatment.

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Priority intervention for Wernicke's Encephalopathy to guide bedside assessment, documentation, and the next nursing action.
• A nurse's prompt recognition of the signs of WE (confusion, ataxia, eye movement issues), especially in at-risk patients, is critical for patient survival and preventing long-term disability.
• The most critical nursing safety intervention is to administer thiamine BEFORE or concurrently with any glucose-containing IV fluids. Giving glucose first can precipitate or worsen the encephalopathy.
• What if the patient was ordered a D5W (5% Dextrose in Water) IV infusion first? The nurse must question this order and advocate for thiamine administration first. Administering glucose alone would consume the body's last thiamine reserves for its metabolism, rapidly accelerating the neurological damage.

How to Approach the Question

• Identify the keywords in the stem: "Wernicke's Encephalopathy" and "first physician's order".
• The term "first" indicates this is a priority-setting question. You must determine the most immediate, life-saving action.
• Recall the pathophysiology of Wernicke's Encephalopathy: it is an acute neurological condition caused by severe thiamine (Vitamin B1) deficiency.
• Logically conclude that the first and most important action is to correct the underlying deficiency.
• Evaluate the options: Giving thiamine directly treats the cause. MRI and EEG are diagnostic tests that would delay treatment. Steroids are irrelevant to the pathophysiology.
• Select the option that provides immediate treatment for the underlying cause.

Concept Tested & Keywords

• Concept Tested: Priority intervention for Wernicke's Encephalopathy
• Stem keywords: Wernicke's Encephalopathy, tentative diagnosis, first physician's order
• Lead-in keywords: first

Question ID

QDU58AP0ms593jlj5T5M-V

Copy ID

Reference Book

E6 Medicine Harrison 22e Part 2 p. 253-255