A high blood level of which substance causes hepatic coma?
Bilirubin
Calcium
Ammonia
Sodium
The Correct Answer is C
Choice A reason: While elevated bilirubin levels can indicate liver dysfunction and lead to jaundice, they are not the primary cause of hepatic coma. Bilirubin is a byproduct of red blood cell breakdown and its accumulation can cause yellowing of the skin and eyes.
Choice B reason: Calcium levels, whether high or low, can affect neuromuscular function and cardiac health, but they are not directly associated with causing hepatic coma. Hypercalcemia or hypocalcemia can present with various symptoms, but not typically with hepatic coma.
Choice C reason: Elevated ammonia levels are directly associated with hepatic coma. In patients with severe liver dysfunction, the liver cannot efficiently convert ammonia (a byproduct of protein metabolism) into urea for excretion. The accumulation of ammonia in the blood can cross the blood-brain barrier and lead to encephalopathy, resulting in confusion, altered mental status, and potentially hepatic coma.
Choice D reason: Sodium levels can affect neurological function, particularly with conditions like hypernatremia or hyponatremia. However, these imbalances are not the primary cause of hepatic coma. The direct link to hepatic coma is through elevated ammonia levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Administering antiemetics before chemotherapy is an effective intervention to help manage Sarah's nausea. Antiemetics can prevent or reduce the severity of nausea and vomiting associated with chemotherapy, making it easier for patients to tolerate treatment and maintain their nutritional status.
Choice B reason: Encouraging carbonated beverages is not a recommended intervention for managing nausea. Carbonated beverages can sometimes worsen nausea due to their acidity and carbonation.
Choice C reason: Recommending three large meals and two small snacks daily is not the best approach for managing nausea. Smaller, more frequent meals are generally more effective in preventing nausea and ensuring adequate calorie intake. Large meals can be overwhelming and may exacerbate nausea.
Correct Answer is B
Explanation
Choice A reason: Asking the patient about loose stools is important as it can help identify possible causes of fluid and electrolyte imbalances. However, this question alone would not be the immediate or primary action to take in response to generalized weakness.
Choice B reason: Suggesting that the healthcare provider order a basic metabolic panel is the most appropriate action. Potassium-wasting diuretics can lead to hypokalemia, which can cause symptoms like generalized weakness. A basic metabolic panel will provide information on the patient's electrolyte levels, including potassium, and help determine if the weakness is due to an electrolyte imbalance. This allows for appropriate intervention to correct the imbalance and prevent further complications.
Choice C reason: Assessing for facial muscle spasms is relevant because hypokalemia can cause muscle cramps and spasms. However, it does not address the root cause of the weakness and does not lead to immediate intervention.
Choice D reason: Calling for a rapid response team is generally reserved for situations where the patient is experiencing acute, life-threatening symptoms requiring immediate intervention. Generalized weakness in the context of a patient on a potassium-wasting diuretic does not usually necessitate such an urgent response unless it progresses to more severe symptoms.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.