2017.1 : SAQ 1

Previously examined SAQs are a useful study tool. We’ll work through the February 2017 paper for the next couple of weeks.

Question 1 was quite a visual question asking about the anatomy relevant to LIJ line placement.

BT_GS 1.72   BT_RT 1.20

The vagus nerve is in the carotid sheath   TRUE/FALSE

The glossopharyngeal nerve is in the carotid sheath  TRUE/FALSE

Pneumothorax is more likely with LIJ placement than RIJ  TRUE/FALSE

The carotid pulse is lateral to the LIJ  TRUE/FALSE

The LIJ has a greater calibre than the right  TRUE/FALSE

BT_AM 1.1 Describe the anatomy of the upper airway, larynx and trachea, including its innervation and endoscopic appearance

The turbinates project into the nasal cavity from the nasal septum. TRUE / FALSE

When a curved laryngoscope blade is placed in the vallecula, it elevates the epiglottis by tensing the hyoepiglottic ligament. TRUE / FALSE

In an adult, cricoid pressure blocks the oesophagus by compressing it against the C3 vertebral body. TRUE / FALSE

The sensory innervation of the area just above the vocal cords is from the external branch of the superior laryngeal nerve. TRUE / FALSE

The surface landmark that corresponds with the carina is the manubriosternal joint (angle of Louis). TRUE / FALSE

BT_PM 1.1 Anatomy of sensory pathways

I had a Bier’s block for my recent operation – old fashioned, very effective and not examinable in the primary exam😉. I’ve already asked some statements related to local anaesthetics and nerve conduction, so today some statements related to pain pathways.

BT_PM 1.1 Describe the anatomy of the sensory pathways with particular reference to pain sensation

The spinothalamic tracts are in the dorsal column TRUE/FALSE

Primary afferent neurons synapse in the dorsal root ganglion TRUE/FALSE

C-fibres synapse in the substantia gelatinosa TRUE/FALSE

Pain and temperature fibres decussate at the level of the medulla TRUE/FALSE

C-fibres are unmyelinated TRUE/FALSE

SS_PA 1.1 Paediatric Airway Anatomy

Oops, looks like we haven’t had any anatomy for a while.

SS_PA 1.1 Describe the anatomy of the neonatal airway, how this changes with growth and development and the implications for airway management

TRUE/FALSE Under extension of the neck may cause airway obstruction in the neonate

TRUE/FALSE Over extension of the neck may cause airway obstruction in the neonate

TRUE/FALSE Infants are obligate nasal breathers

TRUE/FALSE Neonates have a large tongue in comparison to the oropharynx

TRUE/FALSE Infants are unable to breathe via the mouth

Airway Anatomy IT_AM 1.1

After I intubated my first patient yesterday, blood started coming up the endotracheal tube. On bronchoscopy there was granulomatous tissue extending down the entire trachea… Which inspired me to post an airway anatomy LO.

IT_AM 1.1 Describe the basic structural anatomy of the upper airway including the larynx

TRUE/FALSE The cricoid is the only complete cartilaginous ring in the tracheobronchial tree

TRUE/FALSE The vocal cord is formed by the superior edge of the cricothyroid membrane

TRUE/FALSE The recurrent laryngeal nerve supplies all the intrinsic muscles of the larynx

TRUE/FALSE The superior laryngeal nerve is purely sensory

TRUE/FALSE The posterior cricoarytenoids are the only muscles that open the glottis

The patient had a grade III larynx on DL. The ENT surgeon suggested the granulation tissue might have been related to the use of a bougie when the patient was intubated a month or so ago. Perhaps the rigid plastic bougies are more traumatic than we realise.