A client with end-stage cirrhosis and hepatic encephalopathy becomes increasingly confused and drowsy.
Which intervention should the nurse implement to reduce ammonia levels?
Administer loop diuretics.
Administer lactulose as prescribed.
Restrict fluid intake.
Increase the client's intake of protein.
The Correct Answer is B
Managing hepatic encephalopathy requires understanding the biochemical role of ammonia in brain toxicity. Knowledge of the enterohepatic circulation and the pharmacological action of osmotic laxatives is necessary to facilitate the excretion of nitrogenous wastes and improve neurological status.
Choice A rationale
Loop diuretics are used to treat ascites or edema but do not directly lower serum ammonia. Excessive diuresis can actually trigger hepatic encephalopathy by causing dehydration and electrolyte imbalances, such as hypokalemia, which increases renal ammonia production and toxicity.
Choice B rationale
Lactulose is a disaccharide that acidifies the colon, converting ammonia into non-absorbable ammonium ions. This osmotic effect also promotes bowel movements, facilitating the rapid excretion of these toxins from the gut, thereby reducing blood ammonia levels and confusion.
Choice C rationale
Restricting fluids does not lower ammonia and can worsen hepatic encephalopathy by causing dehydration and constipation. Adequate hydration and bowel motility are necessary to ensure that nitrogenous wastes are flushed from the gastrointestinal tract effectively to prevent systemic accumulation.
Choice D rationale
Protein breakdown in the gut by bacteria produces ammonia. Increasing protein intake in a client with end stage cirrhosis would likely worsen encephalopathy by providing more nitrogenous substrate for ammonia synthesis, further elevating toxic levels in the blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","E","F"]
Explanation
The scenario requires applying principles of wound management, pain control, and infection prevention for thermal burns. Knowledge of tissue integrity, pharmacological intervention, and sterile surgical asepsis is necessary to prevent complications like syndactyly, infection, and severe pain during treatment.
Choice A rationale
Placing gauze between digits prevents skin surfaces from touching during healing. This essential intervention stops webbing or contractures, known as syndactyly, by maintaining anatomical separation of the fingers while absorbing exudate from the injured thermal burn sites.
Choice B rationale
Topical lotions containing vitamin E are inappropriate for acute thermal burns. Lotions can trap heat or introduce contaminants into open wounds. Specialized antimicrobial agents are required instead of over the counter moisturizers to ensure proper healing and safety.
Choice C rationale
Silver sulfadiazine is a broad spectrum topical antimicrobial used to prevent and treat wound sepsis in second and third degree burns. It effectively penetrates the eschar to reduce bacterial colonization, which is critical for successful skin regeneration.
Choice D rationale
Intact blisters serve as a natural sterile barrier against environment pathogens. Piercing or debriding small blisters increases the risk of infection and tissue trauma. Blisters should remain intact unless they interfere with joint movement or are significantly large.
Choice E rationale
Burn care and debridement are excruciatingly painful procedures. Administering systemic analgesics like morphine sulfate prior to care ensures the client reaches a therapeutic peak, which facilitates cooperation, reduces physiological stress, and manages severe pain during dressing changes.
Choice F rationale
Thermal burns destroy the primary skin barrier, leaving the client highly susceptible to healthcare associated infections. Strict sterile technique during wound care and dressing changes is mandatory to prevent sepsis and promote uncomplicated healing of the damaged tissues.
Correct Answer is D
Explanation
End of life communication requires applying principles of therapeutic honesty and empathy. Knowledge of palliative care communication involves providing clear, realistic information about the prognosis while offering emotional support and ensuring the family understands the focus on comfort and dignity.
Choice A rationale
Offering false hope through vague mentions of medical advances is non-therapeutic. It prevents the family from beginning the grieving process and making necessary end of life decisions. Honesty is essential for maintaining trust between the nurse and the family.
Choice B rationale
This response is dismissive and minimizes the partner's distress. While well intentioned, it provides unsolicited advice rather than addressing the actual question about prognosis. It fails to acknowledge the clinical reality of terminal brain cancer and impending loss.
Choice C rationale
Using platitudes or religious generalizations is insensitive and non-therapeutic. It shuts down further communication and may offend the partner. The nurse should avoid imposing philosophical beliefs and instead focus on the patient's actual clinical status and comfort.
Choice D rationale
This response is honest, direct, and compassionate. It acknowledges the terminal nature of the illness while redirecting the focus to the goals of care, which are comfort and symptom management. It supports the family through realistic expectations.
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