Preanesthetic Evaluation Flashcards
What is preanesthetic evaluation?
2
- To identify factors that might lead to anesthetic complications
- To select an appropriate anesthetic protocol
What are the 4 components of the preanesthetic evaluation?
4
- Signalment
- Medical history
- Physical Exam
- Laboratory evaluation
What is included in the signalment?
3
- Species
- Age
- Breed
Why is the species an important factor when considering anesthesia protocol?
(3)
- difference in response
- different sizes
- temperament
Why is age an important factor when considering anesthesia protocol?
physiologic differences in pediatric and geriatric patients
Why is breed an important factor when considering anesthesia protocol?
physiological and anatomical differences
What are the breeds that have special drug restrictions and what are they?
(2)
- sight hounds don’t do well with barbiturates
2. boxers can’t have acepromazine
What needs to be included in the animal’s medical history?
2
- information about current or previous medical problems
- preexisting disease
- general signs of illness - changes in behavior
What are the medical problems that need to be considered before anesthesia?
(4)
- seizures or fainting
- exercise intolerance
- weakness
- Unexplained bleeding
What can changes in behavior signify?
3
- CNS disorder
- pain
- systemic illness
What can exercise intolerance indicate?
3
- heart disease
- anemia
- musculoskeletal pain
What can indicate unexplained bleeding problems?
3
- bruising
- blood in feces or urine
- prolonged bleeding after injury
What are the most important body systems to examine during a physical exam?
(5)
- Cardiovascular
- Respiratory
- Visceral
- Musculoskeletal
- Skin
What do you need to record when examining the cardiovascular system?
(3)
- heartbeat (pattern, sound)
- pulse (bpm)
- color of mucous membranes
What do you need to record when examining the respiratory system?
(2)
- breathing pattern
2. lung sounds
How do you examine the visceral system?
Palpate for abnormal intraabdominal organs
What do you need to record when examining the musculoskeletal system?
(2)
- check for injury
2. assess weight
Why would you need to examine the skin?
IV access site adequate or not
What does a laboratory evaluation tell you?
Reveals subclinical abnormalities detected on physical exam are significant
What are the laboratory tests should be done before putting an animal under anesthesia?
(7)
- CBC
- Blood Chemistry
- Blood Coagulation Screens
- Electrocardiogram (ECG)
- Radiography
- Urinalysis
- other tests as needed
What is Physical Status Classification based on?
- the results of the preanesthetic evaluation
- Classification is indicative of patient anesthetic risk
What is the anesthetic risk for animals in the class P1?
minimal anesthetic risk
What is the anesthetic risk for animals in the class P5?
extreme anesthetic risk
What is the anesthetic protocol for animals in the classes P3 and P5?
need special protocols and stabilization
What is the anesthetic protocol for animals in the classes P1 and P2?
uses standard anesthetic protocol
What must an owner do before beginning the anesthetic procedure?
Owner must sign a written estimate and a consent form
Why does an owner need to sign a consent form and what does it consist of?
(5)
- Legally necessary
- Informs of risks
- Owner’s daytime phone number
- Permission to perform CPCR
- Lists extralabel drugs used
