150 TCRN Test Exam Test A+ Questions
and Answers Verified Solutions Latest
Update 2026/2027
Answer:
48-72 hours post injury
■ At what pressure should you intervene at with ICP?
Answer:
if sustained > 20 mmHG
■ CPP =?
Answer:
CPP = MAP - ICP
Keep > 60 mmHg in TBI, no hypotension
■ When should you avoid succinylcholine?
Answer:
With crush injuries, burns, or history of malignant hyperthermia.
Crush injuries and burns place them at risk for hyperkalemia.
■ Cushing's Triad
Answer:
A later sign of increased ICP
Widened pulse pressure (increasing SBP), bradycardia, decreased respirations.
■ Epidural Hematoma
Answer:
Middle meningeal artery tear from TEMPORAL bone injury. Rapid onset, lucid period followed by
unresponsiveness
■ Uncal herniation
,Answer:
Ipsilateral dilated pupil, contralateral hemiparesis
■ Subdural hematoma
Answer:
Tear of venous bridging veins
Slower decomposition of mental status change
■ shaken impact syndrome
Answer:
triad of SDH, retinal hemorrhage, and posterior rib fractures
■ Concussions
Answer:
use PECARN criteria
No caffeine, ASA, NSAIDs, narcotics, or excessive stimulation of the brain
■ Diffuse Axonal Injury (DAI)
Answer:
Widespread disruption of axons due to acceleration or deceleration injury.
Dx with MRI
S/S: hyperthermia, HTN, profuse sweating, deep coma, posturing
Tx: Manage increased ICP, watch for DI and increased UOP
■ What should you monitor with mannitol?
Answer:
K, Na, and serum osmolality
■ What should you do for the pt with increased ICP?
Answer:
Dark room, no rigid collars, HOB @ 30-45 degrees, head in neutral alignment, treat anxiety and
pain, decrease stimuli
■ Do acids or bases have worse ocular injuries?
, Answer:
Alkaline (bases) burn worse than acids. Irrigate with warm NS or LR until pH is 7.0-7.4
■ Sign of ruptured globe
Answer:
tear drop shaped pupil
■ Hyphema
Answer:
blood in the anterior chamber of the eye
reddish hue to vision, do not allow to bend over
■ What type of injury causes malocclusion and lower lip/jaw paresthesia?
Answer:
Mandibular fracture
Risk of airway occlusion from loss of tongue control
■ Lefort maxillary fractures
Answer:
Prioritize maintenance of airway, keep in high fowlers
■ Lefort I
Answer:
free floating maxilla, lip laceration
■ Lefort II
Answer:
Pyramidal shaped, nasal fracture
■ Lefort III
Answer:
and Answers Verified Solutions Latest
Update 2026/2027
Answer:
48-72 hours post injury
■ At what pressure should you intervene at with ICP?
Answer:
if sustained > 20 mmHG
■ CPP =?
Answer:
CPP = MAP - ICP
Keep > 60 mmHg in TBI, no hypotension
■ When should you avoid succinylcholine?
Answer:
With crush injuries, burns, or history of malignant hyperthermia.
Crush injuries and burns place them at risk for hyperkalemia.
■ Cushing's Triad
Answer:
A later sign of increased ICP
Widened pulse pressure (increasing SBP), bradycardia, decreased respirations.
■ Epidural Hematoma
Answer:
Middle meningeal artery tear from TEMPORAL bone injury. Rapid onset, lucid period followed by
unresponsiveness
■ Uncal herniation
,Answer:
Ipsilateral dilated pupil, contralateral hemiparesis
■ Subdural hematoma
Answer:
Tear of venous bridging veins
Slower decomposition of mental status change
■ shaken impact syndrome
Answer:
triad of SDH, retinal hemorrhage, and posterior rib fractures
■ Concussions
Answer:
use PECARN criteria
No caffeine, ASA, NSAIDs, narcotics, or excessive stimulation of the brain
■ Diffuse Axonal Injury (DAI)
Answer:
Widespread disruption of axons due to acceleration or deceleration injury.
Dx with MRI
S/S: hyperthermia, HTN, profuse sweating, deep coma, posturing
Tx: Manage increased ICP, watch for DI and increased UOP
■ What should you monitor with mannitol?
Answer:
K, Na, and serum osmolality
■ What should you do for the pt with increased ICP?
Answer:
Dark room, no rigid collars, HOB @ 30-45 degrees, head in neutral alignment, treat anxiety and
pain, decrease stimuli
■ Do acids or bases have worse ocular injuries?
, Answer:
Alkaline (bases) burn worse than acids. Irrigate with warm NS or LR until pH is 7.0-7.4
■ Sign of ruptured globe
Answer:
tear drop shaped pupil
■ Hyphema
Answer:
blood in the anterior chamber of the eye
reddish hue to vision, do not allow to bend over
■ What type of injury causes malocclusion and lower lip/jaw paresthesia?
Answer:
Mandibular fracture
Risk of airway occlusion from loss of tongue control
■ Lefort maxillary fractures
Answer:
Prioritize maintenance of airway, keep in high fowlers
■ Lefort I
Answer:
free floating maxilla, lip laceration
■ Lefort II
Answer:
Pyramidal shaped, nasal fracture
■ Lefort III
Answer:
