Emergencies: Altered Level of Consciousness — Emergency Medicine
Emergency Room · Clinical Specialties
How it begins
Un análisis exhaustivo y riguroso de los mecanismos fisiopatológicos, semiología, aproximación diagnóstica multimodal y estrategias de intervención crítica para el paciente con afectación aguda del nivel de alerta en el departamento de urgencias.
What it covers
- Alteration of the Level of Consciousness
- Anatomy and Physiology of Consciousness
- · The Ascending Reticular Activating System (SARA)
- · Neurotransmission Systems Alert Regulators
- · The Cerebral Cortex and Functional Connectivity Networks
- Definitions and Semiological Classification
- · Qualitative States of Consciousness
- · Clinical Syndromes of Dissociation of Consciousness
- Epidemiology and Initial Approach in Emergencies
- · Global Etiological Distribution
- Pathophysiology of Diffuse Brain Dysfunction and ICH
- · The Monro-Kellie Doctrine
- · Autoregulation and Cerebral Perfusion Pressure (CPP)
- · Types of Cerebral Edema
- Structural Commas vs. Metabolic
- · Mechanisms of Brain Herniation
- · Diffuse Axonal Damage (DAD)
- · Pathophysiology of Metabolic and Toxic Coma
- Ion Channels and Neurotransmission in Coma
- · The Excitotoxic Glutamate Cascade
- · GABAergic hyperstimulation and Neurosteroids
- · The Mitochondrial Energy Failure Hypothesis
- Clinical Evaluation and Severity Scales
- · The Glasgow Coma Scale (GCS) and its Evolution
- · The FOUR Scale (Full Outline of UnResponsiveness)
- · Respiratory Patterns and Their Injury Location Value
- Neurological Examination of Coma in the Emergency Room
- · 1. Detailed Pupillary Examination
- · 2. Exploration of Brain Stem Reflexes
- · 3. Pathological Motor Responses (Postures)
- Etiological Diagnosis and Approach Algorithm
- · Universal Mnemonics: AEIOU-TIPS
- Complementary Tests and Neuroimaging
- · 1. Simple Cranial Computed Tomography (CT)
- · 2. Lumbar Puncture (LP) in Emergencies
- · 3. Electroencephalography (EEG) in Emergencies
- Initial and Life Support (ABCDE) in the Comatose Patient
- · The Golden Rule: Protect the Airway (GCS ≤ 8)
- · Control of Physiological Constants (Avoid Secondary Damage)
- Surgical and Structural Management of Intracranial Hypertension
- · Urgent Medical Strategies for ICP Reduction
- · Indications for Emergency Neurosurgical Intervention
- Directed Treatment of Metabolic and Toxic Causes
- · 1. Severe Hepatic Encephalopathy (Grade III - IV)
- · 2. Uremic Encephalopathy and Cardiorenal Syndrome
- · 3. Diabetic Ketoacidosis (DKA) and Hyperosmolar State (HHS)
- · 4. Specific Antidotes in Acute Poisoning
- Brain Death and Coma Prognosis
- · Definition and Absolute Prerequisites
- · The Clinical Exploration of Brain Death
- · Instrumental Confirmation Methods
The complete study guide is in the app
This page summarizes the outline. The full interactive study guide —with high-yield diagrams, clinical tables, and board review cases— can be read inside Epistemis, completely offline and ad-free.
- Subject
- Emergency Room
- Category
- Clinical Specialties
- Type
- Study Guide
- Sections
- 51
- Reviewed
- 2026-08-02