Mr. Farley is a 57 year old male with a history of alcohol abuse who is brought to the Emergency Department (ED) by some work friends with altered mental status (AMS) and a reported seizure. He has significant ascites and jaundice to his sclera and nail beds.
Critical Thinking Check
Bloom's Taxonomy: Analysis
What diagnostic testing would you anticipate to determine the cause of Mr. Farley’s altered mental status (AMS)?
VIEW ANSWER
CT scan or MRI of the brain to rule out stroke or head bleed
Ammonia levels
Thiamine levels
Critical Thinking Check
Bloom's Taxonomy: Analysis
What do you believe might be going on physiologically?
VIEW ANSWER
Mr. Farley is experiencing encephalopathy, likely hepatic in origin considering his history of alcohol abuse and the signs of liver failure (ascites, jaundice). This means his ammonia levels have gotten high enough to cause cerebral edema.
Alcoholics are also at risk for Wernicke’s encephalopathy, which is caused by a thiamine deficiency that causes damage to the midbrain.
Critical Thinking Check
Bloom's Taxonomy: Application
What nursing assessments should be performed at this time?
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Full neuro exam – pupils, LOC, GCS, strength
Full set of Vital Signs
OLDCARTS assessment of current symptoms – may have to ask his work friends
Mr. Farley is admitted to the Medical Stepdown Unit. He is confused, oriented to person only, and agitated. He keeps trying to climb out of bed and is yelling profanities at the nurses. His ammonia level results are 93 mcg/dL. He has also begun to show a fine tremor in his hands and arms. The provider is concerned he may be at risk for alcohol withdrawal in addition to experiencing hepatic encephalopathy.
Critical Thinking Check
Bloom's Taxonomy: Application
What safety precautions should you initiate for Mr. Farley?
VIEW ANSWER
Mr. Farley should be placed in seizure precautions at this time.
He is at risk for seizures both because of the hepatic encephalopathy, but also because of possible alcohol withdrawal.
His friends also reported a possible seizure, which increases the risk of another.
He may also need to be placed in restraints to prevent injury to himself or staff.
Critical Thinking Check
Bloom's Taxonomy: Analysis
What medication orders would you anticipate from the provider?
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He will need Lactulose to decrease his ammonia levels
He may need Ativan for seizures or for alcohol withdrawal
He may need Thiamine if there is a thiamine deficiency as well
Mr. Farley is placed in bilateral soft wrist restraints for his safety. The provider orders 1 mg Ativan IV push PRN q5min for seizures, plus 2 mg Ativan IV push PRN q2h for signs of alcohol withdrawal. The provider also orders Lactulose 20 mg PO q6h, and Thiamine IV 100 mg BID. Mr. Farley’s level of consciousness continues to diminish and you determine through a bedside swallow study that he is unable to swallow safely at this time.
Critical Thinking Check
Bloom's Taxonomy: Application
What nursing action could you take to ensure that Mr. Farley receives his Lactulose?
VIEW ANSWER
**NOTE of CAUTION** – The enema dose is 200 mg / 300 mL due to altered absorption within the gut ((compared to the PO route 20 mg / 30 mL))
Request an order from the provider to place a nasogastric tube (NG Tube) OR Request an order from the provider to change the medication to the enema route
Critical Thinking Check
Bloom's Taxonomy: Application
What nursing considerations exist once a patient begins receiving Lactulose q6h?
VIEW ANSWER
This patient will begin having frequent, watery stools. Provide a potty plan and ensure call lights are answered. Use barrier wipes or barrier cream to protect the patient’s perineum from breakdown due to the excess moisture.
The nurse inserts a nasogastric tube (NG Tube) for administration of Lactulose 20 mg PO q6h. After 48 hours, Mr. Farley’s ammonia level has decreased to 46 mcg/dL. He is now alert and oriented x 3, calm, and cooperative and unrestrained. He states that he can’t remember what happened or why he’s here. The last thing he remembers is going out for a steak dinner after work to celebrate a big sale and having “a few drinks”. The provider agrees that it is safe for Mr. Farley to be discharged home.
Critical Thinking Check
Bloom's Taxonomy: Application
What discharge teaching do you anticipate for Mr. Farley?
VIEW ANSWER
Mr. Farley should be taught to avoid high protein meals due to the high levels of ammonia produced in digestion of proteins
Mr. Farley should also be taught about the dangers of alcohol abuse when liver insufficiency is present – he may need a social support referral for this
Mr. Farley should be taught s/s of hepatic encephalopathy to report to his provider and/or when to call 911