Medication considerations and drug interactions in sedation Flashcards
Define conscious sedation
A technique in which the use of a drug or drugs produces a state of depression of the CNS enabling treatment to be carried out
But during which verbal contact is maintained
What should the drugs used to provide conscious sedation carry
A wide margin of safety to render loss of consciousness unlikey
Name the most common drugs used for inhalation sedation
Nitrous oxide and oxygen
Name the most comely used drugs for intravenous sedation
midazolam
What class of drugs does midazolam fall under
Benzodiazepines
What do we want to figure out/ gather by the end of a pre sedation assessment
- Is the pt suitable for sedation
- The degree of the patients anxiety
- Nature of the dental treatment required
- The nature severity and stability of patients medical conditions
What questions do we need to ask during a medical history
- Cardiovascular
- Respiratory
- Neurological
- Endocrine
- Haematological
- Hepatic
- renal
- Medication
- other
What do we want o come to by the end of a medical history
Patients ASA classification
What is the ASA classification split into
6 grades:
I- VI
Define a grade I ASA classification
A normal healthy patients
Define a grade II ASA classification
A patient with mild systemic disease
Define a grade III ASA classification
A patient with severe systemic disease
Define a grade IV ASA classification
A patient with severe systemic disease that is a constant threat to life
Define a grade V ASA classification
A moribund patient who is not expected to survive without the operation
Define a grade VI ASA classification
A declared brain dead patient who’s organs are being removed fro donor purposes
Give an example of a patient that would fall under grade I ASA classification
Non smoker with no or minimal alcohol use
Give examples of a patient that would fall under grade II ASA classification
- Smoker and social alcohol drinker
- Pregnant pt
- obese pt (30
Give examples of a patient that would fall under grade III ASA classification
- Pt with one or more moderate to severe disease
- Poorly controlled diabetic
- Pt with poorly controlled hypotension
- Pt who is morbidly obese (BMI>40)
- Pt with a pacemaker
- PT who has had a myocardial infarction more than 3 months ago
Give examples of a patient that would fall under grade IV ASA classification
- Pt who has had a recent MI in the last 3 months
- Pt suffering from transient ischaemic attack
- Pt who has ongoing cardiac ischemia
Give examples of a patient that would fall under grade V ASA classification
- Trauma pt
- Multiple oral/ system dysfunction
When giving sedation in general practice which ASA grade patients would we treat
ASA I or II
What is coronary artery disease
Plaque build up in an artery
What is angina
Build up of plaque in artery making it harder for blood to get through
What is a heart attack
When plaque cracks and a blood cloth blocks the artery
How do we calculate cardiac output
Heart rate X stroke volume
What is blood pressure
Cardiac output X vascular resistance
State a normal blood pressure reading
Systolic 90-120
and
Diastolic 60-80
State a low blood pressure reading
Systolic <90
or
Diastolic <60
State a pre hypertensive blood pressure reading
Systolic 120-139
or
Diastolic 80-89
State a stage 1 hypertensive blood pressure reading
Systolic 140-159
or
Diastolic 90-99
State a stage 2 hypertensive blood pressure reading
Systolic more than 160
or
Diastolic more than 100
If a patient has a blood pressure of 143 systolic and 88 diastolic what does that suggest
Stage 1 hypertension
If a patient has a blood pressure of 68 systolic and 78 diastolic what does that suggest
Low blood pressure
If a patient has a blood pressure of 90 Systolic and 65 diastolic what does that suggest
Normal
If a patient has a blood pressure of 165 systolic and 102 diastolic what does that suggest
Stage 2 hypertension
If a patient has a blood pressure of 125 systolic and 75 diastolic what does that suggest
Pre hypertension
If a patient has a blood pressure 125 systolic and 95 diastolic what does that suggest
stage 1 hypertension
If a patient has a blood pressure 99 systolic and 55 diastolic what does that suggest
low
If a patient has a blood pressure 110 systolic and 88 diastolic what does that suggest
Pre hypertension
If a patient has a blood pressure of 105 Systolic and 70 diastolic what does that suggest
normal
If a patient has a blood pressure of 170 Systolic and 110 diastolic what does that suggest
stage 2 hypertension