TNCC Study Guide 2024 updated with questions and correct solutions

TNCC Study Guide 2024 updated Kinematics - The study of energy transfer as it applies to identifying actual or potential injuries. Biomechanics - The general study of forces and their effects. Mechanism of injury - How external energy forces in the environment are transferred to the body. Newton's First Law of Motion - A body at rest will remain at rest, and a body in motion will stay in motion unless acted upon by an outside force. Newton's Second Law of Motion - Force=Mass X Acceleration Newton's Third Law of Motion - For every action, there is an equal and opposite reaction. Law of Conservation of Energy - Energy can neither be created nor destroyed, but it can change form. Give examples of the previous four in a trauma scenario. - What are the five forms in which energy can exist? - Mechanical Thermal Chemical Electrical Radiant External Forces of Trauma - Deceleration Acceleration Compression Internal Forces of Trauma - Compression Tension Shear How do internal forces protect the body from trauma? - It resists the applied external force. Tissues and organs change their dimensions to accommodate the external force. What are the four main types of traumatic energy? Example? - Blunt Penetrating Thermal Blast Deceleration ? - Sudden stop of body's motion. Acceleration? - Sudden and rapid onset of motion. What environmental and pathophysiological factors are considered when the mechanism of injury is a fall? - The point of impact on the patient's body. The type of surface that is hit and the extent that surface can absorb the energy. The tissue's ability to resist If a person is pushed or accidentally knocked down. What are the three impacts in a MVC? - First (Vehicle hits object) Second (Occupant collides with interior) Third (Internal structures collides with body cavity) Five mechanisms of injury in blunt trauma? - Primary (blast injuries) Secondary (Fragment injuries) Tertiary (Blunt object injuries) Quaternary (Thermal injuries) Quinary (Chemical injuries)