What are the different levels of injury associated with a blast explosion injury?
The four basic mechanisms of blast injury are termed as primary, secondary, tertiary, and quaternary (Table 1).
How do shock waves injury the body?
Air-filled organs, including lungs, the GI tract and middle ear, are especially affected. The blast wave energy moves through the torso to the brain. This can potentially cause damage to tiny cerebral blood vessels, stretching and damaging neural cells in the brain.
What is a blast injury?
A blast injury. is a complex type of physical trauma resulting from direct or indirect exposure to an explosion. Blast injuries range from internal organ injuries, including lung and traumatic brain injury (TBI), to extremity injuries, burns, hearing, and vision injuries.
What are the three characteristics of all explosions?
What are three characteristics of all explosions? The three characteristics are a large release of energy, production of quickly expanding gas molecules, and a rapid reaction rate.
What organ is most susceptible to pressure changes during an explosion?
Solid organs such as the middle ear, lungs, and gastrointestinal tract are the most susceptible to pressure changes.
What is forensic explosive analysis?
Forensic analysis of explosives includes analysis of post-explosion residues, and detection and identification of traces of explosives on suspects’ hands, on clothing and on other related items. Preliminary field tests may be used for screening the debris on the explosion site.
What is a secondary explosive?
Secondary explosive devices are bombs placed at the scene of an ongoing emergency response that are intended to cause casualties among responders.
What are the three types of explosives?
explosive, any substance or device that can be made to produce a volume of rapidly expanding gas in an extremely brief period. There are three fundamental types: mechanical, nuclear, and chemical. A mechanical explosive is one that depends on a physical reaction, such as overloading a container with compressed air.
Why do you keep your mouth open during an explosion?
Explosions create waves of increased pressure, followed by negative pressure, which can be extremely damaging to ears and internal organs. Keeping ones mouth open is said to equalize pressure, therefore reducing internal damage.
How does it feel to be blown up?
They feel a jolting sensation that is not like anything they’ve ever experienced before in their lives. It can be much more severe than that and produce unconsciousness and damage to the body. Some of that is related to other aspects of the explosion obviously.
What is venous stasis retinopathy (hypotensive retinopathy)?
Venous stasis retinopathy or hypotensive retinopathy is the first sign of chronic ocular ischemia. It resembles diabetic retinopathy or central retinal vein occlusion and is characterized by a unilateral appearance, dilation, and tortuosity of the retinal veins, and blot hemorrhages, mostly in the midperiphery of the retina.
What is hypotensive retinopathy in ocular ischemia?
7.11), or hypotensive retinopathy, is the first sign of chronic ocular ischemia. It resembles diabetic retinopathy or central retinal vein occlusion and is characterized by a unilateral appearance, dilation and tortuosity of the retinal veins, and blot hemorrhages, mostly in the midperiphery of the retina.
What is the medgen UID for venous stasis retinopathy?
Venous stasis retinopathy MedGen UID: 687798 •Concept ID: C1261279 Disease or Syndrome Synonyms: Slow flow retinopathy; Stasis retinopathy; Venostasis retinopathy; VSR – Venous stasis retinopathy SNOMED CT:
What are the causes of venous stasis?
There are many factors that contribute to the development of venous stasis, including: 1 Repeatedly standing or sitting for extended periods of time 2 Long flights on an airplane 3 Long car rides 4 Blood clots 5 Varicose veins