Asphyxia

Flashcards covering the definition, causes, mechanisms, symptoms, and key concepts related to asphyxia.

Asphyxia

A condition of severely deficient supply of oxygen to the body, resulting from inability to breathe normally.

Mechanical obstruction

Physical blockages to the air passage that inhibit breathing, such as foreign bodies or external pressure.

Suffocation

Exclusion of air from the lungs through means other than neck compression, often in airtight environments.

Smothering

Mechanical obstruction of the airway caused by external objects, such as a plastic bag or hand.

Choking

Obstruction of the larynx by food, vomit, or other foreign bodies.

Chest Compression

Limitation of lung expansion due to external pressure on the torso.

Strangulation

Mechanically applying pressure to the neck, leading to asphyxia and potential death.

Petechiae

Red spots on the skin or eyes, often indicating trauma or underlying injury.

Drowning

A form of death occurring when the body is submerged in water, preventing air from entering the lungs.

Pulmonary embolism

Blockage of a pulmonary artery that can lead to asphyxia.

Tetanus

A bacterial infection that can interfere with normal breathing, potentially causing asphyxia.

Hyperventilation

Increased rate of breathing that may occur in response to asphyxia.

Ingestion of poisons

Consumption of toxic substances that can interfere with oxygen utilization at the cellular level.

Signs of strangulation

Symptoms such as petechiae, bruising, difficulty breathing, or changes in voice due to neck compression.

Four Phases of Asphyxia

1. Decreased oxygen in the environment. 2. Reduced transfer from air to blood. 3. Reduced transport from lungs to tissues. 4. Reduced transfer across cell membranes.