Preparation for anesthesia Flashcards
What does balanced anaesthesia mean?
- Use of multiple drugs
- Use of a single anaesthetic agent for maintanence
- The use of multiple drugs means less of each
What is another name given for a combination of drugs?
Triad
What is the definition of synergy?
Use of multiple drugs to reduce the amount of each drug being given. Ultimately, reducing possible side effects.
What is known as drug induced deep stupor/sedation?
Narcosis
What is known as the diminished or abolished perception of pain?
Analgesia
What is the Triad of anaesthetic?
- Narcosis
- Analgesia
- Muscle relaxation
The deeper the plane of anaesthesia….
The greater the depression of the CNS
How many planes of anasthesia are there?
4
What are the 4 planes of anaesthesia?
- Stage 1: Voluntary excitement or analgesia
- Stage 2: Involuntary excitement
- Stage 3: Surgical anaesthesia
- Stage 4: Overdose
How many subsections of plane 3 anaesthesia are there?
4
What is stage 1 of anaesthesia during plane 3?
- Light
- Pedal reflex
- Yawn
What is stage 2 and 3 of anaesthesia during plane 3?
- Surgical plane
- RR and HR decreases
- No reflexes
What is stage 4 of anaesthesia during plane 3?
- Too deep
- Early anaesthetic overdose
What is shown during Plane 4 of anaesthesia?
- Breathing stops
- Pupils dilated and eyes central
- Heart stops
- No reflexes
If the patient is in plane 4 of anaesthesia. When would you expect death?
3-5 minutes
How old must an owner be to give INFORMED CONSENT?
18+ years
What do you need for preparation for anaesthesia?
- Informed consent
- Clinical history
- Clinical examination to include CNS, Cardiovascular system and Respiratory system
When would we offer pre-op bloods?
- Patients over 7 years
- Patients known to have certain diseases that can effect anaesthetic
If they have a suspected blood clotting disorder what steps would need to be taken?
Blood coagulation profile
What is PTT regarding blood clotting?
Partial Thromboplastin Time is a measure used to determine the blood coagulation time to diagnose bleeding problem
What is APPT regarding blood clotting?
Activated Partial Thromboplastin Time is another test which has a similar function to PTT test. APTT also measures the functions of coagulant factors in the intrinsic pathway and common pathway.
What is the difference between PTT and APPT?
The key difference between APTT and PTT is that an activator is added to APTT test to increase the speed of the clotting time and to obtain results in a narrower reference range while an activator is not added to normal PTT test
