This document discusses the destruction of skin and blood vessels that can occur from caustic ingestion or inhalation injury. It notes that this can cause injury to the epidermis, dermis, subcutaneous fat and muscles. This results in third degree burns, loss of sensation and pain, infection, inflammation, edema, and pressure on small blood vessels obstructing blood flow and causing ischemia. Ultimately, this leads to issues like respiratory distress, acidosis, and even death if not properly treated.

1. Destruction of Skin and Blood Vessels
CAUSTIC INGESTION INHALATION
(UNKNOWN AGENT) INJURY Injury to Epidermis, Dermis, Hyperkalemia VF
Subcutaneous Fat and Muscles
Capillary Fluid shifting Hyponatremia
Acid Ingestion -Singed Hair Permeability from IVSC to ISC
-Sooty Sputum THIRD DEGREE BURN Open Skin
Massive Stress
Alkali Ingestion Response
WBC, Neutrophil
Mucosal Irritation / Fluid Loss Hypovolemia
DHN
Coagulative Liquefactive Inflammation Loss of Sensation Infection Infammation
Necrosis Necrosis / No pain Symphatetic System
Edema Release of Deactivated HR
Chemical RR
Thrombosed Mediators Temp
pressure on small Cathecolamines
Blood Vessel BP
blood vessels
Burned Laryngeal
Oropharengeal Edema / - Peripheral Cardiac Output
Obstruction on
Mucosa Laryngospasm Resistance
blood flow
- Vasoconstriction
-Tachycardia Tissue Perfusion
Ischemia
-Pain Upper
-Dysphagia Airway Contracture and Scar Eschar Formation Anaerobic Metabolism
-Hoarseness Obstruction Formation
Circumferential Full
Thickness Chest Burns
Respiratory Distress Excursion
-Stridor tidal Volume Bronchoconstriction Acidosis (R/M)
-DOB
- Tachypnea
CYANOSIS