Trauma Flashcards

(56 cards)

1
Q

How should airway be assessed in the primary survey?

A

Airway

Check for airway compromise
􀂃 Ask pt. a question
􀂃 Stridor
􀂃 Orofacial injury or burns
􀂃 Visualise airway and use suction if necessary

Manoeuvres to open airway
􀂃 Jaw thrust

Adjuncts if compromise / potential compromised
􀂃 NPA: gag reflex present
􀂃 OPA: no gag reflex (stop tongue swallowing)

Emergency Airways
􀂃 Needle cricothyroidotomy or surgical cric

Definitive Airways (no risk of aspiration)
􀂃 Endotracheal tube
􀂃 Tracheostomy
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2
Q

How should C-spine be managed in primary survey?

A

􀁸 Maintain in-line cervical support to keep neck stable

􀁸 Place pt. in hard-collar and sandbags c¯ tape

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3
Q

How should breathing be assessed in primary survey?

A
􀁸 SpO2
􀁸 Inspection of chest
􀁸 Position of trachea
􀁸 RR and chest expansion
􀁸 Breath sounds, vocal resonance
􀁸 Percussion
􀁸 ABG
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4
Q

What are the signs of tension pneumothorax?

A
􀂃 Respiratory distress
􀂃 􀄹JVP and 􀄻BP
􀂃 Tracheal deviation + displaced apex
􀂃 􀄻 air entry and 􀄻 VR
􀂃 Hyperresonant percussion
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5
Q

How is tension pneumothorax managed?

A

immediate decompression
􀂃 Insert large-bore venflon into 2nd ICS, midclavicular
line.
􀂃 Insert ICD later

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6
Q

How are open sucking chest wounds managed?

A

Convert to closed wounds by covering with damp

occlusive dressing stuck down on 3 sides.

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7
Q

What should be done under circulation in primary survey?

A

􀁸 Two-large bore cannulae (14/16G) in each ACF

􀁸 FBC, U+E, x-match (6U), clotting, VBG

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8
Q

How is circulation assessed in the primary survey?

A

􀁸 Inspection: pale, sweaty, active bleeding
􀁸 Vascular status: BP, HR, JVP, heart sounds, cardiac
mon
􀁸 End-organ: consciousness, UO

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9
Q

how is disability assessed in the primary survey?

A

􀁸 Assess consciousness using AVPU or GCS

􀁸 Pupil responses

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10
Q

How is exposure assessed in the primary survey?

A

􀁸 Completely undress pt.

􀁸 Perform log-role and PR
Feel for high riding prostate (urethral rupture)
Look for bleeding

􀁸 Prevent hypothermia

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11
Q

What should be covered under the history of the secondary survey?

A

AMPLE

􀁸 Allergies
􀁸 Medication
􀁸 PMH
􀁸 Last ate / drunk
􀁸 Events
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12
Q

What investigations should form part of the secondary survey?

A

􀁸 Trauma series
C-spine: lat + peg
CXR
Pelvis

􀁸 FAST scan (Focussed Assessment c¯ Sonography in
Trauma)

􀁸 CT: when pt. is stable.

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13
Q

How should c-spine radiographs be assessed?

A

Views
􀂃 Lateral
􀂃 AP
􀂃 Open-mouth Peg view

Adequacy
􀂃 Must see C7-T1 junction
􀂃 May need swimmer’s view c¯ abducted arm

Alignment: 4 lines
􀂃 Ant. vertebral bodies
􀂃 Ant. vertebral canal
􀂃 Post. vertebral canal
􀂃 Tips of spinous processes

Bones: shapes of bodies, laminae, processes

Cartilage: IV discs should be equal height

Soft tissue
􀂃 Width of soft tissue shadow anterior to upper
vertebrae should be 50% of vertebral width.

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14
Q

What is the indication for clinical clearance of the c-spine?

A
Indication: NEXUS Criteria
􀂃 Fully alert and orientated
􀂃 No head injury
􀂃 No drugs or alcohol
􀂃 No neck pain
􀂃 No abnormal neurology
􀂃 No distracting injury
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15
Q

How is the c-spine clinically cleared?

A

􀂃 Examine for bruising or deformity
􀂃 Palpate for deformity and tenderness
􀂃 Ensure pain-free active movement

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16
Q

What is the indication for radiological clearance of the c-spine?

A

􀂃 Pt. doesn’t meet criteria for clinical clearance

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17
Q

What are the modalities for radiological clearance of the c-spine?

A

􀂃 Radiograph initially
- Clear if normal radiograph and clinical exam
􀂃 CT C-spine if abnormal radiograph or clinical exam

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18
Q

What is neurogenic shock?

A

Disruption of sympathetic nervous system

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19
Q

What are the causes of neurogenic shock?

A

􀁸 Spinal anaesthesia
􀁸 Hypoglycaemia
􀁸 Cord injury above T5
􀁸 Closed head injuries

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20
Q

How does neurogenic shock present?

A

􀁸 Hypotension
􀁸 Bradycardia
􀁸 Warm extremities

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21
Q

How is neurogenic shock managed?

A

􀁸 Vasopressors: vasopressin and norad

􀁸 Atropine: reverse the bradycardia

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22
Q

What is spinal shock?

A

􀁸 Acute spinal cord transection
􀁸 Loss of all voluntary and reflex activity below the level
of injury

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23
Q

How does spinal shock present?

A

􀁸 Hypotonic paralysis
􀁸 Areflexia
􀁸 Loss of sensation
􀁸 Bladder retention

24
Q

What are the differentials in life-threatening chest injuries?

A
ATOMIC
􀁸 Airway obstruction
􀁸 Tension Pneumothorax
􀁸 Open pneumothorax (sucking)
􀁸 Massive haemothorax
􀁸 Intercostal disruption and pulmonary contusion
􀁸 Cardiac Tamponade
25
What is a massive haemothorax and what usually causes it?
􀁸 Accumulation of >1.5L of blood in chest cavity | 􀁸 Usually caused by disruption of hilar vessels
26
How does massive haemothorax present?
``` 􀁸 Signs of chest wall trauma 􀁸 􀄻BP 􀁸 􀄻 expansion 􀁸 􀄻 breath sounds and 􀄻VR 􀁸 Stony dull percussion ```
27
How is massive haemothorax managed?
􀁸 X-match 6u 􀁸 Large-bore chest drain c¯ hep saline for autotransfusion 􀁸 Thoracotomy if >1.5L or >200ml/h
28
How does flail chest present?
􀁸 Ant. or lat. # of >=2 adjacent ribs in >=2 places 􀁸 Flail segment moves paradoxically c¯ respiration 􀁸 decreased Oxygenation Underlying pulmonary contusion decreased Ventilation of affected segment
29
What investigations should be carried out in flail chest?
􀁸 CXR / CT chest: pulmonary contusion (white) | 􀁸 Serial ABGs: decreased PaO2:FiO2 ratio
30
how is flail chest managed?
􀁸 O2 􀁸 Good analgesia: PCA, epidural 􀁸 Persistent respiratory failure: PPV
31
What is cardiac tamponade and what usually causes it?
􀁸 Disruption of myocardium or great vessels leading to blood in the pericardium leading to decreased filling and contraction leading to shock 􀁸 Usually results from penetrating trauma
32
how does cardiac tamponade present?
􀁸 Beck’s Triad increased JVP / distended neck veins decreased BP Muffled heart sounds 􀁸 Pulsus paradoxus: SBP fall of >10mmHg on inspiration 􀁸 Kussmaul’s sign: increased JVP on inspiration 􀁸 Intensely restless pt.
33
how is cardiac tamponade investigated?
􀁸 US: FAST or transthoracic echo 􀁸 CXR: enlarged pericardium 􀁸 increased CVP >12mmHg 􀁸 ECG: low voltage QRS ± electrical alternans
34
how is cardiac tamponade managed?
􀁸 Pericardiocentesis: spinal needle in R subxiphoid space aiming at 45 degrees towards the R tip of left scapula 􀁸 Thoracotomy may be needed
35
Which ribs are usually # and which suggest high energy trauma?
􀁸 Usually 5th-9th ribs | 􀁸 # of upper 4 ribs = high energy trauma
36
What are the complications of rib #
􀂃 Pneumothorax | 􀂃 Lacerate thoracic or abdominal viscera
37
how are rib # managed?
good analgesiaa 􀂃 NSAIDs + opioids 􀂃 Intrapleural analgesia 􀂃 Intercostal block
38
How are sternal # usually obtained? What is the risk?
Usually MVA driver vs. steering wheel risk of mediastinal injury
39
How are sternal # managed?
􀂃 Analgesia, admit, observe 􀂃 Cardiac monitor 􀂃 Troponin: rule out myocardial contusion
40
How is pulmonary contusion usually caused?
Usually due to rapid deceleration injury or shock waves
41
how does pulmonary contusion usually present?
dyspnoea, haemoptysis, respiratory failure
42
How is pulmonary contusion investigated?
􀂃 CXR: opacification | 􀂃 Serial ABGs: decreased PaO2:FiO2 ratio
43
How is pulmonary contusion managed?
O2, ventilate if necessary
44
What is the cause of myocardial contusion?
direct blunt trauma over precordium
45
how is myocardial contusion managed?
bed rest, cardiac monitoring, Rx arrhythmias
46
how is myocardial contusion investigated?
􀂃 ECG: abnormal, arrhythmias | 􀂃 increased troponin
47
how is contained aortic disruption caused
Rapid deceleration injury (80% immediately fatal)
48
how does contained aortic disruption present
initially stable but become hypotensive
49
how is contained aortic disruption investigated
􀂃 CXR: wide mediastinum, deviation of NGT | 􀂃 CT
50
how is contained aortic disruption managed?
cardiothoracic consult
51
What should raise suspicion of diaphramatic injury?
Consider in penetrating injuries below 5th rib or high | energy compression.
52
What investigations should be done in diaphramatic injury?
CXR (visceral herniation), CT
53
What should raise suspicion of oesophageal disruption?
􀁸 Usually penetrating trauma | 􀁸 causing mediastinitis
54
What investigations should be done in oesophgeal disruption?
􀂃 CXR: pneumomediastinum, surgical emphysema | 􀂃 CT
55
How does tracheobronchial disruption present?
􀂃 Persistent pneumothorax | 􀂃 Pneumomediastinum
56
How is tracheobronchial disruption managed?
thoracotomy