A 45-year-old male patient present to the emergency department with a severe head injury following a car accident. His Glasgow Coma Scale (GCS) score is 8, and he shows signs of increased intracranial pressure (ICP). Which of the following interventions should be prioritized to manage his ICP?
Administering mannitol intravenously
Encouraging the patient to hyperventilate
Administering a high-dose corticosteroid
Performing a lumbar puncture immediately
The Correct Answer is A
A. Administering mannitol intravenously: Mannitol is an osmotic diuretic that helps reduce ICP by drawing fluid out of brain tissue and decreasing cerebral edema, making it a priority intervention.
B. Encouraging the patient to hyperventilate: Controlled hyperventilation may reduce ICP temporarily by lowering CO₂ levels and causing cerebral vasoconstriction. However, it should only be done cautiously under close monitoring, and other ICP management techniques like mannitol administration take priority.
C. Administering a high-dose corticosteroid: Corticosteroids are generally ineffective for reducing ICP in traumatic brain injury and are typically not recommended in this scenario.
D. Performing a lumbar puncture immediately: Lumbar puncture is contraindicated in cases of increased ICP because it may lead to brain herniation due to the sudden release of pressure.
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Correct Answer is D
Explanation
A. Pain in the neck when the patient flexes their head towards the chest. This describes nuchal rigidity, not Kernig sign.
B. Involuntary flexion of the hips and knees when the neck is flexed. This describes Brudzinski sign, not Kernig sign.
C. Photophobia and headache triggered by bright light. These are symptoms of meningitis, but they are not specific to Kernig sign.
D. Pain and resistance when attempting to extend the patient's leg from a flexed position. A positive Kernig sign is when there is pain and resistance to leg extension from a flexed hip and knee position, indicating meningeal irritation.
Correct Answer is C
Explanation
A. "I should monitor my temperature regularly and report any fevers to my healthcare provider." This statement shows correct understanding. Fever may indicate worsening infection or complications, so it’s important to monitor and report any fevers.
B. "I need to inform my healthcare provider about any new symptoms, such as shortness of breath or chest pain." This statement shows understanding. New symptoms, especially respiratory or cardiac, could signify complications, and should be reported.
C. "I can stop taking my antibiotics once I feel better." This indicates a need for further teaching. Completing the full course of antibiotics is crucial to ensure the infection is completely eradicated, even if symptoms improve.
D. "I will need to take antibiotics before dental procedures." Patients with infective endocarditis often require prophylactic antibiotics before dental procedures to prevent bacterial entry into the bloodstream.