TNCC EXAM 2025 QUESTIONS AND
ANSWERS
What are the greatest risks for transport? - ANS Loss of airway patency, displaced
obstructive tubes lines or catheters, dislodge splinting devices, need to replace or reinforce
dressings, deterioration in patient status change in vital signs or level of consciousness, injury to
the patient and/or team members
According to newtons law which of these two force is greater: size or force? - ANS Neither.
For each force there is an equal and opposite reaction.
What is the relationship between mass and velocity to kinetic energy? - ANS Kinetic energy is
equal to 1/2 the mass multiplied the square of its velocity therefore when mass is doubled so is
the net energy, however, when velocity is doubled energy is quadrupled.
What is tension? - ANS stretching force by pulling at opposite ends
What is compression? - ANS Crushing by squeezing together
What is bending? - ANS Loading about an axis. Bending causes compression on the side the
person is bending toward intention to the opposite side
What is shearing? - ANS Damage by tearing or bending by exerting faucet different parts in
opposite directions at the same time.
What is torsion? - ANS Torsion forces twist ends in opposite directions.
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, What is combined loading? - ANS Any combination of tension compression torsion bending
and/or shear.
What are the four types of trauma related injuries? - ANS Blunt, penetrating, thermal, or
blast.
What are contributing factors to injuries related to blunt traumas? - ANS The point of impact
on the patient's body, the type of surface that is hit, the tissues ability to resist (bone versus
soft tissue, air-filled versus solid organs), and the trajectory of force.
What are the seven patterns of pathway injuries related to motor vehicle accidents? -
ANS Up and over, down and under, lateral, rotational, rear, roll over, and ejection.
Differentiate between the three impacts of motor vehicle impact sequence. - ANS The first
impact occurs when the vehicle collided with another object. The second impact occurs after
the initial impact when the occupant continues to move in the original direction of travel until
they collide with the interior of the vehicle or meet resistance. The third impact occurs when
internal structures collide within the body cavity.
What are the three factors that contribute to the damage caused by penetrating trauma's? -
ANS The point of impact, the velocity and speed of impact, and the proximity to the object.
What causes the primary effects of blast traumas? - ANS The direct blast effects. Types of
injuries include last long, tympanic membrane rupture and middle ear damage, abdominal
hemorrhage and perforation, global rupture, mild Trumatic brain injury.
What causes the secondary effects of blast traumas? - ANS Projectiles propelled by the
explosion. Injuries include penetrating or blunt injuries or I penetration.
What causes the tertiary effects of blast traumas? - ANS Results from individuals being
thrown by the blast wind. Injuries include hole or partial body translocation from being thrown
against a hard service: blunt or penetrating trauma's, fractures, traumatic amputations.
2|P a g e C o p y r i g h t © 2 0 2 5 T H E B R I G H T A L L R I G H T S R E S E R V E D
ANSWERS
What are the greatest risks for transport? - ANS Loss of airway patency, displaced
obstructive tubes lines or catheters, dislodge splinting devices, need to replace or reinforce
dressings, deterioration in patient status change in vital signs or level of consciousness, injury to
the patient and/or team members
According to newtons law which of these two force is greater: size or force? - ANS Neither.
For each force there is an equal and opposite reaction.
What is the relationship between mass and velocity to kinetic energy? - ANS Kinetic energy is
equal to 1/2 the mass multiplied the square of its velocity therefore when mass is doubled so is
the net energy, however, when velocity is doubled energy is quadrupled.
What is tension? - ANS stretching force by pulling at opposite ends
What is compression? - ANS Crushing by squeezing together
What is bending? - ANS Loading about an axis. Bending causes compression on the side the
person is bending toward intention to the opposite side
What is shearing? - ANS Damage by tearing or bending by exerting faucet different parts in
opposite directions at the same time.
What is torsion? - ANS Torsion forces twist ends in opposite directions.
1|P a g e C o p y r i g h t © 2 0 2 5 T H E B R I G H T A L L R I G H T S R E S E R V E D
, What is combined loading? - ANS Any combination of tension compression torsion bending
and/or shear.
What are the four types of trauma related injuries? - ANS Blunt, penetrating, thermal, or
blast.
What are contributing factors to injuries related to blunt traumas? - ANS The point of impact
on the patient's body, the type of surface that is hit, the tissues ability to resist (bone versus
soft tissue, air-filled versus solid organs), and the trajectory of force.
What are the seven patterns of pathway injuries related to motor vehicle accidents? -
ANS Up and over, down and under, lateral, rotational, rear, roll over, and ejection.
Differentiate between the three impacts of motor vehicle impact sequence. - ANS The first
impact occurs when the vehicle collided with another object. The second impact occurs after
the initial impact when the occupant continues to move in the original direction of travel until
they collide with the interior of the vehicle or meet resistance. The third impact occurs when
internal structures collide within the body cavity.
What are the three factors that contribute to the damage caused by penetrating trauma's? -
ANS The point of impact, the velocity and speed of impact, and the proximity to the object.
What causes the primary effects of blast traumas? - ANS The direct blast effects. Types of
injuries include last long, tympanic membrane rupture and middle ear damage, abdominal
hemorrhage and perforation, global rupture, mild Trumatic brain injury.
What causes the secondary effects of blast traumas? - ANS Projectiles propelled by the
explosion. Injuries include penetrating or blunt injuries or I penetration.
What causes the tertiary effects of blast traumas? - ANS Results from individuals being
thrown by the blast wind. Injuries include hole or partial body translocation from being thrown
against a hard service: blunt or penetrating trauma's, fractures, traumatic amputations.
2|P a g e C o p y r i g h t © 2 0 2 5 T H E B R I G H T A L L R I G H T S R E S E R V E D
