Paedriatric Dentistry Flashcards
What are the indications for Inhalation Sedation in Adults and Children? (6)
Anxiety
Needle phobia
Gagging
Traumatic procedures
Medical conditions aggravated by stress
Unaccompanied adults requiring sedation
What are the contraindications of Inhalation Sedation in Adults and Children? (7)
Common cold
Tonsillar/Adenoidal enlargement
Severe COPD
First trimester of pregnancy
Fear of ‘mask’/ Claustrophobia
Patients with limited ability to understand
Obstruction of the operation field by mask
What are the components of the equipment utilised in Inhalation Sedation? (7)
Gas cylinders
Pressure reducing valves
Flow control meter
Reservoir bag
Gas delivery hoses
Nasal hood
Waste gas scavenging system
What is the purpose of the Flow Control Meter in the equipment used in Inhalation sedation?
Measures flow rates of up to 10 l/min
Blue= nitrous oxide
Clear= oxygen
Accuracy +/- 5%
What is the function of the Reservoir bag component of the Inhalation Sedation equipment?
2-3 litre bag; rubber or silicone
Should move visibly with each breath and must not collapse
Monitors respiration
What is the diameter of the gas delivery hose component of the Inhalation Sedation equipment?
2.5cm
What is the function of each hose of the gas delivery hoses in the Inhalation Sedation equipment?
One hose: delivers fresh gases from the machine
One hose: delivers waste gas to scavenging system
What are examples of Safety features of Inhalation Sedation equipment?
Pin Index System
Diameter Index System
Minimum Oxygen Delivery
Oxygen Fail Safe
Air entrainment valve
Oxygen flush button
Oxygen monitor
Reservoir bag
Colour coding
Scavenging System
Oxygen and Nitrous oxide pressure dials
Pressure reducing valves
One way expiratory valve
Quick fit connection for positive pressure oxygen delivery
What is the function of a Pin Index System in Inhalation Sedation?
Prevents the wrong cylinder being attached to the
What is the function of the Diameter index system in Inhalation Sedation?
Prevents cross connection of piping
What is the minimum oxygen delivery in Inhalation Sedation?
30%
When does the oxygen fail safe kick in in Inhalation Sedation?
When oxygen pressure <40 psi
What are the advantages of Inhalation Sedation? (9)
Rapid onset (2-3mins)
Rapid peak action (3-5mins)
Flexible duration
Rapid recovery
No injection (for sedation not LA)
Few side effects on patient
Drug not metabolised
Some analgesia (better for ischaemic > inflammatory pain)
No amnesia
What are the disadvantages of Inhalation Sedation? (8)
Expensive equipment
Expensive gases
Space occupying equipment
Environmental concerns
Requires ability to breath through nose
Chronic exposure risk (potentially)
Staff addiction
Difficult to accurately determine actual dose
What are the signs of adequate sedation? (10)
Patient relaxed/comfortable
Patient awake
Reduced blink rate
Laryngeal reflexes unaffected
Vital signs unaffected
Gag reflex obtunded/reduced
Mouth open on request
Decreased reaction to painful stimuli
Decrease in spontaneous movement
Verbal contact maintained
What are the symptoms of adequate Inhalation Sedation? (10)
Mental and physical relaxation
Lessened awareness of pain
Paraesthesia: lips, fingers, toes, legs, tongue
Lethargy
Euphoria
Detachment ‘floating feeling’
Warmth
Altered awareness of time
Dreaming
Small controllable ‘fits of giggles’
What are the signs and symptoms of over sedation (Inhalation Sedation)? (9)
Mouth closing
Spontaneous mouth breathing
Nausea/Vomiting
Irrational and sluggish responses
Decreased cooperation
Incoherent speech
Uncontrolled laughter/tears
Patient no longer enjoying effects
Loss of Consciousness
What are the pre-operative instructions prior to Inhalation Sedation? (8)
Have a light meal before appointment
Take routine medications
Child accompanied by competed adult
Adults must be accompanied on their first appointment
Do not drink alcohol on day of appointment
Wear sensible clothing
Arrange care of children during and after appointment
Plan to remain in clinic up to 30 minutes after treatment
Discuss Inhalation Sedation Technique:
Set up
Select nasal hood and connect hoses
Set dial to 100% O2
Set flow to 5-6l per min and position on patient nose
Encourage nasal breathing and verify reservoir bag movements
Reduce O2 by 10%
One min later reduce O2 by 10%
Reduce by 5% per minute until patient ready
What should you do to the O2 concentration when patient is over sedated?
Increase O2 in 5-10% increments
What should you do to the O2 concentration if the patient is under sedated?
Decrease O2 in 5% increments
What should you do to get to the recovery phase of Inhalation Sedation?
Increase O2 to 100%
Administer 100% for 2-3 minutes
Remove hood and turn gas flow off
Return patient up right, praise and reassure
Why do you leave the O2 at 100% for 2-3 minutes in Inhalation Sedation?
To prevent diffusion hypoxia
What is the success rate for Inhalation Sedation and why does it vary?
50-90%
Patient populations, greater success with orthodontic extractions, poorer in patients with pain