Table of Contents
- 1 What causes penetrating wounds in the secondary blast phase?
- 2 What is primary blast injury?
- 3 What damage is most common when a person falls on outstretched arms?
- 4 What organ is most susceptible to pressure changes during an explosion?
- 5 Which fracture is common when a person tries to break their fall with outstretched arms?
- 6 What is the most lethal of all nerve agents?
- 7 How is shrapnel treated after a bomb blast?
- 8 What are the primary and secondary blast injuries?
What causes penetrating wounds in the secondary blast phase?
Secondary blast injuries are caused by debris that is displaced by the blast wind of the explosion. The secondary blast injuries are caused by debris that penetrates or interacts with the body surface.
What is the difference between a primary blast secondary blast and tertiary blast?
Primary blast—unique to high-order explosives; results from the impact of the over-pressurization wave with body surfaces. Secondary blast—results from flying debris and bomb fragments. Tertiary blast—results from individuals being thrown by the blast wind.
What is primary blast injury?
Primary blast injury is organ and tissue damage caused solely by the blast wave associated with high-order explosives.
Which condition may present several hours after the blast?
“Blast lung” is characterized by the clinical triad of apnea, bradycardia, and hypotension. It is usually present at the time of initial presentation, but may be delayed many hours after the explosion.
What damage is most common when a person falls on outstretched arms?
Distal radial fractures, including Colles’ and Smith fractures, are common FOOSH injuries. They affect your wrist where it meets your arm’s radius. The radius is the larger of the two bones in your forearm. Often this type of fracture will cause swelling, bone displacement, bruising, and extreme pain along your radius.
What is a quinary blast injury?
Quinary blast injuries refer to the clinical consequences of post-detonation environmental contaminants, including chemical (e.g., sarin), biological (e.g., anthrax), and radiological (e.g., dirty bombs) substances.
What organ is most susceptible to pressure changes during an explosion?
Hollow organs such as the middle ear, lung, and GI tract are most susceptible to pressure changes.
How long does a foosh injury take to heal?
How long does it take to recover from a FOOSH injury? If your injury is mild, you may be back to normal within a couple of weeks. If you’ve experienced a more severe injury that requires a cast or surgery, you will likely need physical therapy. Complete recovery may take up to 2 months.
Which fracture is common when a person tries to break their fall with outstretched arms?
Distal Radius Fracture (Colles Fracture) When someone falls on their outstretched hand, they sometimes get a “broken wrist.” The bone that is usually broken is called the radius.
When a bomb explodes what happens?
A nuclear blast occurs when a nuclear bomb explodes. It causes destruction over a wide area within seconds to minutes. The blast creates a large fireball and a mushroom cloud of dust and particles.
What is the most lethal of all nerve agents?
VX is the most potent of all nerve agents. Compared with the nerve agent sarin (also known as GB), VX is considered to be much more toxic by entry through the skin and somewhat more toxic by inhalation. It is possible that any visible VX liquid contact on the skin, unless washed off immediately, would be lethal.
What kind of injuries are caused by shrapnel?
Musculoskeletal injuries are the most common modern warfare wounds, accounting for 60% to 70% of all wounds. 1,2 Most penetrating injuries are inflicted by shrapnel, not bullets. The high speed of chemical decomposition of the explosive into gas (detonation) generates primary blast waves, which cause primary insult to gas-containing organs.
How is shrapnel treated after a bomb blast?
In the acute phase, the victim is treated according to Advanced Trauma Life Support (ATLS) guidelines. 4 Depending on the amount of energy of the blast, anatomic site, and related injuries, specific wound care and thorough débridement is performed with or without shrapnel removal.
How are blast injuries caused in an explosion?
Blast injuries are caused by explosions which release blast waves, blast winds, ground shock, and heat. Other mechanisms of injury are generated from blasts, including penetrating injuries from shrapnel, radiation, and biological exposure.
What are the primary and secondary blast injuries?
Primary blast injuries are caused by barotrauma from the initial increased pressure of the explosive detonation and the rarefaction of the atmosphere immediately afterward. Secondary blast injuries are caused by debris carried by the blast wind and most often result in penetrating trauma from small shrapnel.