Lines and Tubes Flashcards
Why is it important for radiographers to have a good knowledge of lines and tubes?
For early detection of malpositioned lines.
What is an Endotracheal Tube (ETT) used for?
Airway management
What are the indications for use of an endotracheal tube?
- Inadequate arterial oxygenation, severe airway obstruction, shock and parenchymal diseases that impair gas exchange;
- upper airway obstruction;
- Impending gastric reflux or aspiration
- Provisions for tracheobronchial lavage and tracheal suctioning.
What does Lavage mean?
Lavage: To wash out
What is a tracheostomy?
A hole to make an artificial airway to create the same type of pathway
T/F?
An ETT can be used when patients that have a tracheostomy.
True
What approach is used to insert an ETT?
A translaryngeal approach via the mouth or nose is used.
What is #1 pointing to?
The cuff of an ETT
What are the possible damages of the cuff of an endotracheal tube?
- The cuff’s structure and pressure can damage the tracheal mucosa, (erosin of mucosa) especially during long term care.
- Cuff inflation can damage vocal folds and resulting in inadequate ventilation.
What is another reason that a tracheostomy would be put in other than long term use?
If there is an obstruction above the larynx (i.e. tumours, traumatic injuries)
T/F?
The cuff of an ETT is radiopaque.
False; not ussually visable in a radiograph unless it is over inflated.
With a properly positioned ETT, where will the distal tip lie?
The distal tip will be 5 – 7 cm superior to the tracheal bifurcation (carina) when the neck is in neutral position.
Is this ETT tube in the right place?
Yes
What is the most common malposition of an ETT?
In the right main stem bronchus.
Where should the proximal end of an ETT lie when the carina is not visible?
The tip of the ET tube should not lie higher than the level of medial ends of the clavicles.
Where is the carnia?
Between T5-T7
What is one of the risks assosiated with placing the ETT too high in the trachea?
- Inadvertent extubation
- Esophageal intubation: Air pumped into stomach resulting in regurgitation which then enters airway resulting on aspiration pneumonia.
What are the complications associated with an ETT being too low, or being inserted into the right main stem bronchus?
- Bronchial intubation-Tube too low
- Atelectasis of the left lung
- Overventilation of the right and potential airway obstruction of the left.
What is an atelectasis?
Atelectasis: Not properly inflating the lungs (could be due to pneumothorax too)
Which side shows the alveoli being deflated?
The left side
What can erosion of tracheal mucosa lead to?
Subcutaneous or mediastinal emphysema which is where Air goes outside of trachea into surrounding tissue (in the subcutaneous tissue)
What pathology is shown here?
- Subcutaneous and mediastinal emphysema
- overdistention of the balloon cuff,
- distal extension of the balloon toward the endotracheal tube tip.
What pathology is being shown here? What is the arrow pointing to?
-Subcutaneous/Mediastinal Emphysema
-Outpouching of air
What can too high of positive pressure on mechanical ventialtion lead to?
PTX