Inhalation Sedation Flashcards
What is inhalation sedation?
It is the appropriate use of nitrous oxide and oxygen being delivered to a patient through a nasal hood.
What is another name for inhalation sedation?
Relative analgesia.
What is the aim of providing inhalation sedation to patients?
To use as little nitrous oxide as possible combined with oxygen to sedate a patient.
State the name of the gases used for inhalation
Nitrous oxide and oxygen.
State three advantages of providing inhalation sedation to patients.
There is no gastric absorption or any significant metabolism; therefore there will be no adverse effects on the liver, kidney, brain, cardiovascular or respiratory system. There is minimal impairment of cough and swallowing reflexes so the patient’s airway is not compromised. Patients recover very quickly and there are not any post-sedation restrictions. A minimum of 30% oxygen is provided at all times. The patient will feel it’s effect within 20 seconds and within 3-5 minutes will experience its full effect. It is ideal for long or short procedures, and can be provided for all ages with few contra-indications.
The nitrous oxide sedated whilst providing some analgesic and anterograde amnesia.
Indications for inhalation sedation
Anxious adult or child Needle phobic Gag reflex Medically compromised Unpleasant procedure Mild to moderate anxiety
Contra indications of inhalation sedation
First trimester of pregnancy
Nasal obstruction - atomically / disease
Unstable mental health
cooperative patient
C O P D - used to having lower amounts of oxygen
Neurological disorders
Vitamin B12 deficiency
People who are having chemotherapy with bleomycin
Guedel’s stages of Anaesthesa.
Which stage is inhalation sedation present in?
Inhalation sedation is only present in stage 1 - plane 1 and plane 2
What are the symptoms of nitrous oxide sedation
Light floaty sensation Warmth Heaviness Tingling (pins and needles) or numbness Auditory and visual disturbances Giggling - euphoria Dreamy Spinning Detached / dissociated
Signs of nitrous oxide sedation
Look less tense Reduced frequency of blinking, eyes glazed Slowed responses Patient reports change of mood Lower tone of voice Some flashed skin
Signs of over-sedation
Mouth closes Eyes show fear, disorientation Agitated Nausea Controlled laughter Emotional outburst / crying
It is important that you have verbal contact throughout
What is the time weighted average for nitrous oxide
100 parts per million in 8 hour period in any 24-hours
How much does a full nitrous oxide cylinder weigh
8.8 kgs
How much does an empty nitrous oxide and cylinder weigh?
5.5 kgs
How much does the gas in the night is oxide cylinder weigh
3.4 kgs
