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PHTLS CH 5 Random Exam Questions and Answers 2024/2025( A+ GRADED 100% VERIFIED).
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PHTLS CH 5 Random Exam Questions and Answers 2024/2025( A+ GRADED 100% VERIFIED).
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PHTLS ch 5 RandomSuccessful management of trauma patients depends on the identification of injures or potential
injuries and the use of good
assessment skills - ANS
is the branch of mechanics that deals with the
motion of objects without reference to the forces that cause
the motion. - ANS Kinematics
address the interaction of the human body with the components of a crash. - ANS . Mechanical
principles address
the laws of physics that govern energy exchange and the general
effects of the energy exchange. - ANS general principles
A traumatic event is divided into three phases: pre-event, event,
and postevent. Simply stated, the pre-event phase is the preven
tion phase. The event phase is that portion of the traumatic event
that involves the exchange of energy or the kinematics (mechan
ics of energy). Lastly, the postevent is the patient care phase. - ANS
energy is transformed into injury when it
is it absorbed ? - ANS into the body
three impacts occur in most vehicular crashes:
1. The impact of the ______?
2. The impact of the occupants into the vehicle
3. The impact of the_______ inside the occupants - ANS 1. two objects
3. vital organs inside the occupants
in a fall, only the ____
and ____ impacts are involved. - ANS 2nd &3rd
To understand the effects of the forces that produce bodily injury, the prehospital care provider
first needs to understand two components - ANS 1.exchange of energy 2.human anatomy
The initial steps in obtaining a _____ include evaluating the events that occurred at the time of
the crash - ANS history
, a body at rest will
remain at rest, and a body in motion will remain in motion unless acted on by an outside force -
ANS Newton's first law
energy can neither be created nor destroyed, but can be changed in form. The motion of the
vehicle is a form of energy - ANS Newton's second law of motion,
is perhaps the most well
known of Newton's three laws. It states that for every action or force there is an equal and
opposite reaction - ANS Newton's third law of motion
is a function of an object's mass and velocity - ANS Kinetic energy
Kinetic energy = One-half the mass times the velocity ______? - ANS squared
This transfer of energy produces the amount
of damage (injury) that occurs to the patient. The number of
tissue particles affected is determined by ? - ANS (1) the density (particles per volume) of the
tissue and
(2) the size of the contact
area of the impact.
the body has three different types of tissue densities
1.air density
2.water density 3
3.solid density - ANS .
the tissue particles
of the human body are knocked out of their normal position, creating a hole or cavity. Thus, this
process is called - ANS cavitation.
Two types of cavities are
=is caused by the stretching of the tissues that occurs at the time of impact.
= is left after the temporary cavity collapses and is the visible part of the tissue destruction is left
after the temporary cavity collapses and is the visible part of the tissue destruction - ANS A
temporary cavity
Apermanent cavity
is produced by the direct impact of the object on the tissue - ANS crush cavity
The on-scene observations of the probable circumstances that led to a crash resulting in blunt
trauma provide clues as to the severity of the injuries and the potential
organs involved. The factors to assess are (1) ____ of the impact, (2) ______ damage to the
vehicle (type and
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