When explaining normal intracranial pressure (ICP) balance to the patient's family, which three components would the nurse include?
Glucose level, BP, and brain tissue
BP, brain tissue, and cerebrospinal fluid
BP, brain tissue, body mass index
BP, brain tissue, and ventricles of the brain
The Correct Answer is B
A. Glucose level, BP, and brain tissue: Glucose level is not a key component of ICP balance.
B. BP, brain tissue, and cerebrospinal fluid: These are the primary components that contribute to ICP balance. Changes in any of these can affect pressure inside the skull.
C. BP, brain tissue, body mass index: BMI is not directly related to ICP balance.
D. BP, brain tissue, and ventricles of the brain: The ventricles are involved in cerebrospinal fluid production but are not one of the primary components of ICP balance as a whole.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Nicardipine is a calcium channel blocker used for blood pressure management, not for decreasing ICP.
B. Dopamine is used for shock or hypotension but does not address ICP.
C. Mannitol is an osmotic diuretic used to decrease ICP by drawing fluid out of the brain and reducing swelling.
D. Phenytoin is an anticonvulsant used to prevent seizures, but it does not directly affect ICP.
Correct Answer is []
Explanation
Increased Intracranial Pressure (ICP)
Based on the patient’s clinical presentation, which includes a fall, slurred speech, weak cough reflex, restlessness, and a slight headache, the patient is at risk for increased intracranial pressure (ICP). The history of falling from a ladder could suggest a possible head injury, and the changes in speech and restlessness could be early signs of increasing ICP. The presence of a laceration on the left temple may also indicate a traumatic brain injury, which is a key risk factor for increased ICP.
Actions to Take:
- Apply oxygen via cannula at 2 L/min
Oxygen is critical for brain tissue oxygenation, especially in patients with possible head injuries and ICP. The patient's oxygen saturation is 90% on room air, which is slightly low and requires supplementation to maintain adequate oxygen levels and reduce the risk of hypoxia, which can exacerbate increased ICP.
- Elevate the head of the bed to 45 degrees
Elevating the head of the bed to 30-45 degrees can help improve venous drainage from the brain, thus reducing the risk of increased ICP. Positioning the patient in this way also helps reduce pressure on the brain and enhances cerebral perfusion.
Parameters to Monitor:
- Level of consciousness (LOC)
Changes in the patient's level of consciousness are a key indicator of worsening ICP. The nurse should assess the patient’s alertness, orientation, and any deterioration in cognitive function or responsiveness. The patient's current orientation level is X2, meaning they are only oriented to person and place, which may signal a developing problem.
- Vital signs
Monitoring vital signs, especially blood pressure, heart rate, and respiratory rate, is crucial in assessing the patient's neurological status. Changes in blood pressure (especially widening pulse pressure) or abnormal respiratory patterns can be early indicators of increased ICP. In particular, the patient's blood pressure (152/59) suggests a possible increased risk of ICP, with the systolic value elevated but the diastolic pressure relatively low. This could be a compensatory response to ICP or another issue.
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