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VETT 134 Anesthesia & Surgical Assisting II
Wk 2
56
Veterinary Medicine
Not Applicable
05/28/2012

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Term
minimum pt database
Definition
a compilation of pertinent info gleaned from the pt hx, PE, and dx tests, which the VIC will use to determine the pt's physical status and anes risk and to select an appropriate anes protocol
Term
minimum pt database consists of
Definition
1. Pt hx including the pt signalment
2. complete PE findings
3. results of a preanes dx workup
Term
what to ask when gathering historical info about signs of an illness
Definition
1. duration
2. the volume or severity
3. the frequency
4. the character or appearance
Term
Sighthounds are sensitive to ?
Definition
Sighthounds such as greyhounds and salukis are sensitive to barbiturates beacuse of their relative lack of body fat and slow metabolism of these agents compared with other breeds. Consequently these drugs must be used cautiously or not at all in these pts.
Term
Boxers and giant breeds are more sensitive to ?
Definition
acepromazine than other breeds, whereas terriers are resistant
Term
What pts respond to anes procedures differently than other animals and have special needs of which the anes mst be aware?
Definition
pts that are very large, very small, or very old (>75% of the normal lifespan
Term
why are neonates and geriatric pts less
able to tolerate some drugs?
Definition
neonates or ped pts are much less capable of metabolizing injectable drugs than are adult animals because the necessary liver metabolic pathways are not fully developed. Geriatric pts may be unable to tolerate normal doses of some drugs because of poor hepatic or renal fxn. The result in either case may be a slow recovery from anes, particularly if doses of inj drugs are not adjusted accordingly
Term
other considerations with young pts?
Definition
more difficult to intubate and catheterize, more subject to dosing errors, more prone to hypothermia and hypoxia, and have a weaker resp dirve.
Term
When obtaining the pre-anesthetic hx, determine...
Definition
the signalment,
current and past illnesses
meds
allergies or drug rxns
status of preventative care
Term
Cats, small dogs and small animal peds are prone to __
Definition
hypoxemia and hypercarbia caused by increased mechanical dead space.
Term
a PE finding of dehydration
Definition
increases risk for anes comp incl hypotension, poor tissue perfusion, and kidney damage
Term
a PE finding of anemia
Definition
dcreases the o2-carrying capacity of the blood nad predisposes the pt to hypoxemia
Term
a PE finding of bruising lesions on the skin or mm, in the absence of trauma,
Definition
often indicate a clotting disorder, which will increase the risk of potenially life-threatening intraoperative and postoperative bleeding
Term
a PE finding of respiratory or cardiovascular dz
Definition
increases the risk of anes comp and death
Term
a PE finding of abnormalities of abdominal organs such as an enlarged liver or abnormally small kidneys
Definition
may be assoc with abnormal organ function and a reduced ability to metabolize or excrete anesthetic agents
Term
When pts are significantly overweight, anesthetics should be dosed __
Definition
according to lean body wt (excluding body fat) instead of total body wt. because body fat increases the total body wt but not the volume or wt of the nervous tissue.
Term
Assessing hydration status
Definition
somewhat subjective as parameters are affected by body fat contenet, age, and other factors. Young and obese appear more hydrated, old and chachetic may appear less. Panting may dry mm, appearing less hydrated.
Term
What is an excellent indicator of hydration?
Definition
careful serial monitoring of body wt - a sudden loss of 1 kg corresponds to 1 L of fluid loss
Term
Lethargic/lethargy
Definition
pts with a mildly decreased LOC that can be aroused with minimal difficulty
Term
obtunded/obtundity
Definition
pts that are more depressed and can not be fully aroused
Term
Stuporous/stupor
Definition
a sleeplike state and can be aroused only with a painful stimulus
Term
Comatose/coma
Definition
cannot be aroused and is unresponsive to all stimuli including pain
Term
Normal vital signs in a nonanesthetized dog
Definition
T 100 - 102.5, HR 60 - 180 (lower for larger, higher for smaller), Heart rhythm NSR or SA, RR 10 - 30
Term
Normal vital signs in a nonanesthetized cat
Definition
T 100 - 102.5, HR 120 - 140, heart rhythm NSR only, RR 150 - 30
Term
Normal vital signs in a nonanesthetized horse
Definition
T 99 - 100.5, HR 30-45, heart rhythm NSR, SA or first or second degree AV block, RR 8-20
Term
Normal vital signs in a nonanesthetized cow
Definition
T 102 - 104, HR 60-90, heart rhythm NSR or SA, RR 80-20
Term
Normal vital signs in a nonanesthetized sheep/goat
Definition
T 102-104. HR 60-90, heart rhythm NSR or SA, RR 16-24
Term
Where are the heart rate and rhythm most easily evaluated?
Definition
auscultation of the heart over the left chest wall at the point of maximal intensity
Term
What if the audible intensity os decreased, as in obese pts?
Definition
sometimes palpation for the apical pulse is helpful to locate the optimal area for placement. When teh apical pulse is not palpable, the anesthetist must carefully search in the region of the left axilla for a spot where the heart is most palpable. systematic, small measured chenges in the position of the stethoscope head until the optimal area is located.
Term
A decreased heart sound intensity in a nonobese pt __
Definition
may indicate pericardial or pleural effusion
Term
normal sinus rhythm
Definition
completely regular rhythm with no irregularities or pauses between beats, although the rate may change in response to excitement level
Term
Sinus arrhythmia
Definition
the heart rate cyclically increases during inspiration and decreases during expiration. may be pronounced in young healthy dogs and may cause the inexperienced to to think there are skipped or premature beats. Abnormal rhythms can be differentiated from SA by observing the resp while listening to the heart
Term
first-degree atrioventricular heart blcok
Definition
caused by a conduction delay through an AV node and is recognized by a prolonged PR interval on an ecg tracing. causes no noticable change in heart sounds and can be detected only by ecg
Term
second degree AV
Definition
caused by a periodic block of electrical conduction through the AV node and recognized by missing QRS complex. on auscultation, periodic pauces representing skipped beats are audible. not normal for more than one beat to be skipped in a row.
Term
noraml crt
Definition
less than 2 seconds
Term
pale mm or prolong CRT indicative of __
Definition
decreased perfusion from shock, vasoconstriction, hypotension, or a variety of other issues. Pale mm can also be assoc with anemia. cyanotic mm indicate reduced o2 sat
Term
Dyspneic pts
Definition
may exhibit mouth breathing, flared nostrils, excessive panting, exaggerated chest or abdo movements on inspiration, wheezing, and reluctance to lie down. in extreme cases a dyspneic animal may exhibit cyanosis
Term
physical status classification
Definition
the most widely accepted is the one adopted by the ASA. rates pt risk from minimal (P1) to extreme (P5) based on pt health. classification of risk is somewhat objective and may change over time
Term
P1
Definition
minimal risk, normal healthy pt, pts undergoing electives (OVH, castration, declaw)
Term
P2
Definition
Low risk, pt w/ mild systemic dz, neonatal, geriatric, or obese pts. mild dehydration, skin tumor removal
Term
P3
Definition
moderate risk, pt w/ severe systemic d, anemia, moderate dehydration, compensated major organ dz
Term
P4
Definition
high risk, pt w/ severe systemic dz that is a constant threat to life, ruptured bladder, internal hemorrhage, pneumothorax, pyometra
Term
P5
Definition
extreme risk, moribund pt that is not expected to survive w/o the operation
Term
What physical exam findings would a patient that is 2% to 3% dehydrated have?
Definition
Not detectable
Term
. What physical exam findings would a patient that is 5% to 6% dehydrated have?
Definition
Mild loss of skin elasticity
Term
What physical exam findings would a patient that is 6% to 8% dehydrated have?
Definition
Definite loss of skin elastiticty, may have dry mucus membranes, may have depressed globes within orbits
Term
What physical exam findings would a patient that is 8% to 10% dehydrated have?
Definition
Persistent skin tent with slow return because of loss of skin elasticity
Term
Know the normal fasting times for dogs/cats
Definition
8-12h (pts under 2 kg shorter), water 2-4 (if at all)
Term
Know the normal fasting times for horses
Definition
food 8-12h, water 0-2h
Term
Know the normal fasting times for cattle
Definition
– food 24-48h, water 8-12
Term
Know the normal fasting times for small ruminants
Definition
food 12 – 18h, water 8-12h
Term
Know the normal fasting times for Neonatal and pediatric (< 8w)
Definition
– food/water 0
Term
which kind of scissors is the most appropriate to cut a small ligament.
Definition
Mayo dissecting scissors is used when cutting lg muscle masses, cartilage, or any other nondelicate tissue
Term
which kind of scissors in most appropriate to cut a surgical sponge to fit a particular wound size
Definition
Operating scissors
Term
Know which part of a ring-handled surgical instrument is most likely to lock the instrument closed during a surgical procedure.
Definition
ratchet
Term
which forceps are the most appropriate to clamp a large mass on the flank of a Thoroughbred horse
Definition
Rochester-Carmalt hemostatic forceps
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