Tbi meningitis

Increased Intracranial Pressure (ICP) Management

  • Overview of ICP Management

    • Use mannitol to displace fluid and decrease ICP.

    • Evacuate any intracranial bleeds in surgical settings.

Types of Herniations

  • Cingulate Herniation (Type 1)

    • Displacement of brain tissue towards the cingulate gyrus.

  • Central Herniation (Type 2)

    • Brain tissue herniates downward through the foramen magnum.

  • Uncal Herniation (Type 3)

    • Brain tissue is pushed on one side through the foramen magnum.

  • Cerebellar Tonsillar Herniation (Type 4)

    • Brainstem herniates down through the foramen magnum.

  • Upward Herniation (Type 5)

    • Cerebellum herniates upward.

  • Transcalvarial Herniation (Type 6)

    • Brain tissue exits through a defect in the skull.

Signs of Herniation

  • Cushing's Triad

    • Increased systolic blood pressure.

    • Irregular respirations (cheyne-stokes).

    • Bradycardia.

  • Pupillary Changes

    • Indicates pressure changes leading to possible herniation.

Traumatic Brain Injury (TBI) Management

  • Basic Principles

    • ABCs (Airway, Breathing, Circulation) and C-spine precautions.

    • Regular monitoring: vital signs, Glasgow Coma Scale (GCS), and neurological assessment.

  • Positioning

    • Head of bed elevated at least 30 degrees to prevent secondary injury.

  • Prevention of Secondary Injury

    • Prevent hypoxia and infection.

    • ICP monitoring in non-surgical management.

  • Medications and Support

    • Administer appropriate medications for symptoms management.

    • Provide support and education to patient’s family.

Organ Donation Process

  • Criteria for Organ Donation

    • Report patients with GCS less than 8 with neurological injury to organ donation services.

  • Role of the Procurement Team

    • Takes over care of the patient to maintain homeostasis until organ procurement.

  • Donation After Cardiac Death

    • Important for cases where the patient does not satisfy brain death criteria but can still be donors.

  • Family Involvement

    • Families create memory cards before organ donation takes place, fostering a sensitive context for the procedure.

Nursing Responsibilities in Organ Donation

  • Communication

    • Provide information on organ donation processes to families.

  • Support to Families

    • Emotional support during end-of-life decisions.

Lab Values Importance

  • Serum Osmolality

    • Normal range: 285-295 mOsm/kg.

    • High osmolality indicates dehydration; low osmolality suggests fluid overload.

  • Sodium Levels

    • Essential to maintain normal serum sodium; low levels can increase ICP.

  • Antidiuretic Hormone (ADH) Disorders

    • SIADH: Low urine output, hyponatremia, low plasma osmolality.

    • Diabetes Insipidus (DI): High urine output, hypernatremia, high plasma osmolality.

Brain Death Determination

  • Criteria

    • Must undergo specific tests to confirm brain death including corneal reflex, cold caloric testing, and doll's eyes response.

  • Diagnostic Procedures

    • VQ scans to assess brain perfusion.

Meningitis Overview

  • Anatomy

    • Meninges: dura mater, arachnoid mater, pia mater.

  • Symptoms of Meningitis

    • Fever, severe headache, neck stiffness, photophobia, altered mental status.

  • Bacterial Meningitis

    • Medical emergency with high mortality without treatment.

    • Requires aggressive treatment and monitoring.

  • Viral Meningitis

    • Usually self-limiting; supportive care provided until bacterial meningitis is ruled out.

Nursing Care for Meningitis Patients

  • Nursing Management

    • Administer antibiotics for bacterial meningitis.

    • Conduct neuro assessments and manage pain.

    • Provide low stimulation environment due to photophobia.