TNCC ENA 9th Edition Pre Test
TNCC ENA 9TH EDITION PRE TEST NEWEST 2025/2026
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |BRAND NEW VERSION!!
Which of following accurately describes ventilation principles associated with use
of bag-mask device for an adult?
A. Compress the bag-mask device at a rate of one breath every 6 seconds
B. Delivers 100% oxygen
C. Squeeze the bag-mask device completely for each breath
D. Maintain the oxygen saturation levels between 92% and 94% - Correct Answer-
A. Compress the bag-mask device at a rate of one breath every 6 seconds
Rationale: If breathing is ineffective for an adult, assist ventilations by compressing
the bag-mask device at a rate of one breath every 6 seconds.
While performing an assessment on a 13-month-old involved in a motor vehicle
collision, the nurse identifies which of the following findings from the patient as a
sign of possible altered mental status?
A. Sunken fontanel
B. Crying, but consolable
C. Spontaneous movement of arms and legs
D. Cooperation with the assessment - Correct Answer-D. Cooperation with the
assessment
1|Page
, TNCC ENA 9th Edition Pre Test
Rationale: An alert older infant or toddler will recognize their caregiver, be
cautious of strangers, and may not respond to commands or cooperate, which are
normal.
What is the best measure of the adequacy of the cellular perfusion and can help
to predict the outcome of resuscitation?
A. End-tidal carbon dioxide
B. Hematocrit
C. Base deficit
D. Oxygen saturation - Correct Answer-C. Base deficit
Rationale: Base deficit serves as an endpoint measurement of the adequacy of
cellular perfusion and, when used in conjunction with serum lactate, helps predict
the success of the resuscitation.
Following a bomb explosion, fragmentation injuries from the bomb or objects in
the environment are examples of which phase of injury?
A. Primary
B. Secondary
C. Tertiary
D. Quaternary - Correct Answer-B. Secondary
2|Page
, TNCC ENA 9th Edition Pre Test
Rationale: The secondary phase of a blast results from flying debris, projectiles,
and bomb fragments causing lacerations or penetrating injuries.
An adult patient with a knife injury to the neck has an intact airway and is
hemodynamically stable. They complain of difficulty swallowing and speaking. In
the primary survey, further assessment is indicated next for which of the following
conditions?
A. Damage to the cervical spine
B. An expanding pneumothorax
C. Laceration of the carotid artery
D. Injury of the thyroid gland - Correct Answer-A. Damage to the cervical spine
Rationale: Penetrating neck trauma may include concurrent injuries to the cervical
spine and cord, airway, or vascular neck structures. With an intact airway and
hemodynamic stability, the other common concurrent injury is to the cervical
spine.
What is the best position for maintaining an open airway in the obese patient?
A. Prone
B. Supine
C. Reverse Trendelenburg
D. Right lateral recumbent - Correct Answer-C. Reverse Trendelenburg
3|Page
TNCC ENA 9TH EDITION PRE TEST NEWEST 2025/2026
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |BRAND NEW VERSION!!
Which of following accurately describes ventilation principles associated with use
of bag-mask device for an adult?
A. Compress the bag-mask device at a rate of one breath every 6 seconds
B. Delivers 100% oxygen
C. Squeeze the bag-mask device completely for each breath
D. Maintain the oxygen saturation levels between 92% and 94% - Correct Answer-
A. Compress the bag-mask device at a rate of one breath every 6 seconds
Rationale: If breathing is ineffective for an adult, assist ventilations by compressing
the bag-mask device at a rate of one breath every 6 seconds.
While performing an assessment on a 13-month-old involved in a motor vehicle
collision, the nurse identifies which of the following findings from the patient as a
sign of possible altered mental status?
A. Sunken fontanel
B. Crying, but consolable
C. Spontaneous movement of arms and legs
D. Cooperation with the assessment - Correct Answer-D. Cooperation with the
assessment
1|Page
, TNCC ENA 9th Edition Pre Test
Rationale: An alert older infant or toddler will recognize their caregiver, be
cautious of strangers, and may not respond to commands or cooperate, which are
normal.
What is the best measure of the adequacy of the cellular perfusion and can help
to predict the outcome of resuscitation?
A. End-tidal carbon dioxide
B. Hematocrit
C. Base deficit
D. Oxygen saturation - Correct Answer-C. Base deficit
Rationale: Base deficit serves as an endpoint measurement of the adequacy of
cellular perfusion and, when used in conjunction with serum lactate, helps predict
the success of the resuscitation.
Following a bomb explosion, fragmentation injuries from the bomb or objects in
the environment are examples of which phase of injury?
A. Primary
B. Secondary
C. Tertiary
D. Quaternary - Correct Answer-B. Secondary
2|Page
, TNCC ENA 9th Edition Pre Test
Rationale: The secondary phase of a blast results from flying debris, projectiles,
and bomb fragments causing lacerations or penetrating injuries.
An adult patient with a knife injury to the neck has an intact airway and is
hemodynamically stable. They complain of difficulty swallowing and speaking. In
the primary survey, further assessment is indicated next for which of the following
conditions?
A. Damage to the cervical spine
B. An expanding pneumothorax
C. Laceration of the carotid artery
D. Injury of the thyroid gland - Correct Answer-A. Damage to the cervical spine
Rationale: Penetrating neck trauma may include concurrent injuries to the cervical
spine and cord, airway, or vascular neck structures. With an intact airway and
hemodynamic stability, the other common concurrent injury is to the cervical
spine.
What is the best position for maintaining an open airway in the obese patient?
A. Prone
B. Supine
C. Reverse Trendelenburg
D. Right lateral recumbent - Correct Answer-C. Reverse Trendelenburg
3|Page
