A nurse is caring for a client in the intensive care unit. Which of the following laboratory values could contribute to an episode of delirium?
White blood cell level of 5,900 mm3
Potassium level of 4.1 mEq/L
Hemoglobin level of 14.2 g/dL
Blood glucose level of 254 mg/dL
The Correct Answer is D
A. White blood cell level of 5,900 mm3: While abnormal white blood cell levels can indicate infection or inflammation, they are not typically associated with directly contributing to an episode of delirium. However, underlying conditions that cause abnormal white blood cell levels, such as infection or inflammation, may contribute to delirium.
B. Potassium level of 4.1 mEq/L: Potassium imbalances can lead to various neurological symptoms, including weakness, paralysis, and cardiac arrhythmias. However, a potassium level of 4.1 mEq/L is within the normal range and is unlikely to directly contribute to an episode of delirium.
C. Hemoglobin level of 14.2 g/dL: Hemoglobin levels reflect the oxygen-carrying capacity of the blood and are not directly associated with delirium. While severe anemia or hypoxia can cause neurological symptoms, a hemoglobin level of 14.2 g/dL is within the normal range and is unlikely to directly contribute to delirium.
D. Blood glucose level of 254 mg/dL: Elevated blood glucose levels, as indicated by a blood glucose level of 254 mg/dL, can contribute to an episode of delirium. Hyperglycemia can lead to alterations in cerebral metabolism, neuronal dysfunction, and impaired cognitive function, predisposing individuals to delirium. Additionally, hyperglycemia can exacerbate preexisting neurological conditions and increase the risk of developing delirium in critically ill patients. Therefore, monitoring and managing blood glucose levels are essential in preventing and managing delirium in hospitalized patients.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. People who abstain from alcohol: Abstaining from alcohol does not necessarily increase the risk of sustaining a traumatic brain injury (TBI). In fact, excessive alcohol consumption can increase the risk of falls and accidents leading to TBIs, but abstaining from alcohol itself is not a risk factor for TBI.
B. People who live in rural areas: Living in rural areas may be associated with certain risk factors for TBIs, such as increased rates of motor vehicle accidents due to factors like higher speed limits and longer distances traveled. However, it is not a direct cause of TBIs.
C. People who play contact sports: Engaging in contact sports, such as football, soccer, or rugby, poses a higher risk of sustaining a traumatic brain injury due to the potential for collisions, falls, and impacts during gameplay.
D. People who are in their 30's: While traumatic brain injuries can occur at any age, individuals who are involved in activities with a higher risk of head injuries, such as contact sports or high-risk occupations, may be more prone to TBIs regardless of their age. Age alone is not a significant risk factor for TBIs.
Correct Answer is D
Explanation
A. "I stopped taking aspirin last week.": Stopping aspirin medication prior to surgery is often advised to reduce the risk of bleeding during and after the procedure. The nurse may confirm the timing of discontinuation with the client and verify if any other anticoagulant medications are being taken.
B. "I did not put my contact lenses in this morning.": Removing contact lenses before surgery is a routine precaution to prevent potential corneal abrasions or complications during the procedure. This statement indicates the client is following preoperative instructions.
C. "I took my blood pressure meds with a sip of water.": Taking blood pressure medications with a small amount of water is generally acceptable before surgery. However, the nurse may verify the specific medications the client is taking and their dosing schedule to ensure compliance.
D. "I had a cough and runny nose a couple days ago.": This statement requires further investigation as respiratory symptoms, such as cough and runny nose, may indicate an underlying respiratory infection. Infections can increase the risk of complications during surgery, such as anesthesia-related respiratory issues or postoperative infections. The nurse should assess the severity and duration of the symptoms, inquire about any fever or recent exposure to illnesses, and consider notifying the surgical team for further evaluation and decision-making regarding the client's surgical readiness.
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