Applied anatomy of the larynx part 2 Flashcards
Label A-D
A: Brachiocephalic
B: Common carotid
C: Internal carotid
D: External Carotid
Label the vert. layers of A-D
The laryngeal prominence occurs at which vertebral level
C3
C4
C5
C6
C7
The laryngeal prominence occurs at which vertebral level
C3
C4
C5
C6
C7
The carotid bifurication occurs at which vert. level?
C3
C4
C5
C6
The carotid bifurication occurs at which vert. level?
C3
C4 : carotid pulse can be palpated either side of thyroid cartilage
C5
C6
The cricoid cartilage occurs at which vert. level?
C3
C4
C5
C6
The cricoid cartilage occurs at which vert. level?
C3
C4
C5
C6
Why is it important to know level of cricoid cartilage? [1]
Important site for emergency cricothyroidectomy
The thyroid gland occurs at which vert. level?
C3
C4
C5
C6
The thyroid gland occurs at which vert. level?
C3
C4
C5
C6: overlies cricoid cartilage
Thyroid gland overlies which laryngeal cartilage?
Thyroid cartilage
Cricoid cartilage
Epiglottis
Artyenoid cartilages
Thyroid gland overlies which laryngeal cartilage?
Thyroid cartilage
Cricoid cartilage
Epiglottis
Artyenoid cartilages
Who needs a definitive airway?
Unable to maintain own airway by other means
Risk of impending or potential airway compromise
Unable to maintain O2 levels with facemask
Prescence of apnoea
Features of cerebral hypoperfusion – obtundation/combativeness
Suspected head injury (GCS <8) / sustained seizure activity with risk of aspiration (blood/vomit)
Who needs a definitive airway?
Unable to maintain own airway by other means
Risk of impending or potential airway compromise
Unable to maintain O2 levels with facemask
Prescence of apnoea
Features of cerebral hypoperfusion – obtundation/combativeness
Suspected head injury (GCS <8) / sustained seizure activity with risk of aspiration (blood/vomit)
What presentations would a ptx have that need a a definitive airway? [6]
Who needs a definitive airway?
Unable to maintain own airway by other means
Risk of impending or potential airway compromise - most important
Unable to maintain O2 levels with facemask
Prescence of apnoea
Features of cerebral hypoperfusion – obtundation/combativeness
Suspected head injury (GCS <8) / sustained seizure activity with risk of aspiration (blood/vomit)
What are the 3 components to a definitive airway? [3]
1) Tube placed within the trachea with cuff inflated BELOW vocal cords (most important to know)
2) Tube connected to oxygen enriched assisted ventilation
3) Airway secured in place with appropriate stabilizing method
How can burns of neck / face cause closure of airways? [1]
Direct damage to tissues:
- can cause secondary oedema and swelling of soft tissues
- can be dealyed occlusion of the airway
How can trauma to face/neck cause closure of airway?
Direct obstruction
- Laryngotracheal fractures
Secondary obstruction
- Displacement of local structures
- Loose teeth, bone fragments etc.
- Post-traumatic complications:
eg. haematoma/swelling
In which settings would toy conduct a cricothyroidotomy? [2]
INDICATIONS:
Emergency access to airway required
Unable to intubate
Label this
