Which patient problem is a significant risk factor for the development of delirium in the intensive care unit (ICU)?
Type 2 diabetes mellitus
Alcohol abuse
Anxiety
Impaired communication
The Correct Answer is B
Choice A reason: Type 2 diabetes mellitus, while a serious chronic condition, does not directly predispose patients to delirium. Diabetes primarily impacts the body's ability to regulate blood glucose levels, leading to complications such as cardiovascular disease, neuropathy, and nephropathy. However, it is not directly linked to the acute cognitive disturbances seen in delirium unless it leads to severe metabolic derangements, which is less common.
Choice B reason: Alcohol abuse is a significant risk factor for the development of delirium, especially in ICU patients. Chronic alcohol use can lead to a condition known as delirium tremens (DTs) during withdrawal, characterized by severe agitation, confusion, hallucinations, and autonomic hyperactivity. Patients with a history of alcohol abuse may have altered brain chemistry and neurotransmitter imbalances that predispose them to delirium when stressed by illness or surgery. Moreover, alcohol abuse can lead to liver dysfunction, nutritional deficiencies (particularly thiamine), and other systemic issues that further exacerbate the risk.
Choice C reason: Anxiety can exacerbate stress and discomfort in a patient but is not a primary causative factor for delirium. Anxiety may contribute to an increased sense of fear or confusion, especially in an ICU setting. However, it does not cause the profound disruption in cognitive function, attention, and awareness that characterizes delirium.
Choice D reason: Impaired communication might be a consequence or symptom seen in patients with delirium, but it is not a root cause. Patients with pre-existing communication difficulties might struggle more to express symptoms or needs, which could complicate care, but it does not inherently lead to the onset of delirium. Effective communication strategies and aids can help manage these challenges but do not address the underlying neurological changes seen in delirium.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Administering antibiotics is essential for treating cellulitis to eliminate the infection. However, it is not the immediate priority over maintaining oxygenation, especially in a patient with sickle cell disease.
Choice B reason: Starting IV fluids is crucial for preventing dehydration and helping to reduce the sickling of red blood cells. Nevertheless, while important, it is not the most urgent action compared to maintaining adequate oxygen levels.
Choice C reason: Assessing pain every 4 hours is necessary for managing the patient's comfort and monitoring the progression of the disease. Although pain management is a significant aspect of care, it is not the top priority in this scenario.
Choice D reason: Maintaining oxygenation is the highest priority for a patient with sickle cell disease. These patients are at increased risk for hypoxia, which can exacerbate the sickling of red blood cells, leading to severe complications such as acute chest syndrome or stroke. Ensuring adequate oxygenation helps to prevent these complications and stabilizes the patient's condition.
Correct Answer is B
Explanation
Choice A reason: Urine output of 30 mL/hr is concerning as it is on the lower end of normal and can indicate dehydration or impaired renal function. However, in this context, it is less immediately alarming compared to severely low blood pressure.
Choice B reason: Blood pressure of 90/40 is critically low and indicates hypotension, which can be a sign of severe dehydration or shock, especially in a patient with ongoing nausea and vomiting. This requires immediate attention and intervention to stabilize the patient and prevent further complications.
Choice C reason: An infiltrated IV site is a problem that needs to be addressed to ensure proper administration of fluids and medications. However, it is not as immediately life-threatening as hypotension.
Choice D reason: Oral fluid intake of 100 mL for 8 hours is inadequate, suggesting that the patient may be dehydrated. While concerning, it is not as acutely critical as low blood pressure, which directly affects perfusion and organ function.
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