SA Med & Sx Exam 1
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. What would you like to do?
Procedures that use anesthesia
- Diagnostic Imaging
- Wound Care
a loss of sensitivity to pain.
- CNS depression or drowsiness.
- Slightly aware/ unaware of surroundings
- Aroused by noxious stimulation
- Calm, reluctant to move
- Aware of, but unconcerned of surroundings
- Sleeplike state
- Can be aroused with sufficient stimulation
- Sleeplike state induced by narcotics
- Not easily aroused
Small, specific area of the body
Example of local anesthesia
lidocaine used in a laceration repair, or tumor removal
applied to body surfaces or a wound
Example of topical anesthesia
Proparacaine used in a corneal exam
loss of sensation to a limited area of the body
Example of regional anesthesia
Multiple drugs in smaller quantities
List roles of the vet tech as the anesthetist
- Preparation, operation and maintenance of anesthetic equipment
- Administration of anesthetic agents
- Endotracheal intubation
- Patient monitoring
cutting off oxygen supply; suffocation
collapse of a portion or all of one or both lungs
delivers inhalation anesthetic and carrier gas to patient and removes exhaled co2.
Closed only system
pop off valve is kept nearly or completely close. Flow of oxygen is low.
Fresh gas inlet
point where carrier and anesthetic gases enter the breathing circuit
Volume of a normal breath: 10-15mL/Kg
Purpose of ET tube
- Open airway
- Less dead space
- Precise administration of anesthetic agent
- Prevent pulmonary aspiration
- Respiratory emergencies
- Monitors respirations
- B: Pilot Balloon
- D: Connector
- F: Length Scale
- G: ID Scale
What is the ratio of Oxygen: Nitrous Oxide
What are the four components of an anesthetic machine?
- Compressed Gas Supply
- Anesthetic Vaporizer
- Breathing Circuit
- Scavenging System
What minimum level of oxygen content does the anesthetized patient need to sustain cellular metabolism?
Color coding of compressed gas:
- Oxygen: green
- Nitrous oxide: blue
- Medical air: yellow
- Carbon dioxide: gray
What is the function of the tank pressure gauge?
Indicate the pressure of gas remaining in a compressed gas cylinder
- A: Outlet port
- B: Pressure reducing valve
- C: Tank pressure gauge
- D: Line pressure gauge
- E: Tank valve
The pressure reducing valve reduces the pressure in the line to ___ -____psi
What is the function of the flowmeter?
- Indicates gas flow. Expressed in L/min.
- Reduces pressure to 15psi
Non precision vaporizer
- low pressure
- VIC- vaporizer in circuit
- Ex: methoxyflurane
- delivers precise amount of anesthetic
- high vapor pressure
What is the induction and maintenance rate for isoflurane
- 3-5% induction
- 1.5-2.5 maintenance
What is the induction and maintenance rate for sevoflurane
- 4-6% induction
- 2-4.5 maintenance
What is the induction and maintenance rate for desflurane?
- 10-15% induction
- 8-12 maintenance
List the steps of air flow of anesthetic and carrier gases.
- inhalation unidirectional valve
- inhalation tube
- exhalation unidirectional valve
- CO2 absorber canister
- reservoir bag
- pop-off valve
- pressure manometer
The reservoir bag should be ____ full at peak expiration.
What is the rule of thumb for selecting size of the rebreathing bag?
- 3L- 30-40#
- 5L- >80#
To minimize atelectasis, how often should you manually bag?
What does the pressure manometer do?
indicates the pressure of gases within the breathing circuit
- Respiratory Minute Volume
- Tidal volume X Resp. Rate
Non rebreathing systems require ____ rates during all periods.
Which parts of the anesthesia machine require no regular maintenance?
Tank and line pressure gauges, manometer, oxygen flush valve
List the parts of the vaporizer
- Inlet port
- Outlet port
- Safety lock
- Indicator window
- Fill port
Three parts to the Minimum Patient Database
- Patient History
- Physical exam & assessment
- Pre anesthetic diagnostic workup
Five parts of signalment
- Repro status
List parts of the PE/PA
Body weight, BCS, hydration, LOC, pain score, body temp, general condition, exterior surfaces, PLR, cardiovascular exam, MM, respiratory, abdominal.
List parts to the pre-anesthetic diagnostic workup
- Blood chemistry
Class P1 use _________ anesthetic risk
P1 & P2 use _______ anesthetic risk
P3-P5 use ____________ anesthetic risk
P5 use _______ anesthetic risk
What are the complications of not withholding food before surgery?
esophageal reflux, vomiting, regurgitation, pulmonary aspiration, pneumonia
List reasons for placing an IV catheter.
- Fluid administration
- Emergency access
- Administration of vesicants
- Sequential administration of incompatible drugs
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