lecture 2 exam 1 Flashcards
Name of an animal post mortum
necropsy
True or false
Concrete • Dirt area in the sun • Use a straw bed? are areas to avoid when doing a necropsy in the field?
false these are preferred areas you want to avoid Areas accessible to animals • Areas which may contain food • High traffic areas • Areas difficult to disinfect
what are the 5 types of disposal and when should you decide how to dispose of a carcass?
Burial • Renderer • Transport to a disposal site • Incineration • Composting
Before the PM
Name the main routes of transmission to the vet during a PM
• Oral • Splash into eye • Aerosolization • Percutaneous (sharps injury)
What BSL guidelines do you use during a normal PM?
BSL 2
B, C, D
Equipment needed for a normal PM
True or false
YOu should inspect premises for toxins, and examine other animals for clinical signs before you start a PM
true
What is the order of events in a PM
External examination •
Open the body cavities •
Collect microbiologic samples •
Remove and dissect organs •
Collect histologic samples
After examing outside of carcass what is the first cut you make?
cut from mandible to pubic symphisis and reflect limbs
True or false
Open the thoracic cavity by reflecting ribs before you open the abdominal cavity
false
open abdomnial cavity first
Why do you collect microbio samples first?
to prevent contamination from bacteria/other body fluids distorting samples
True or false
Microbio samples collected aseptically?
true
What micribio sample do you collect last?
intestines
except if GI is suspected then do it first because GI breaks down the fastes of any other body system due to natural flora of gut
What do you do with organs during a PM?
dissect and remove
cut through lumen to investigate inside of organs where pathology begins (mucosal layer) and loaf the organs
True or false
In GI sampling only look at the tissue to come up with a dx
false
also look at ingesta, foreign material, plants, toxins, feed quality etc
What color top do you use fo storing samples intended for culture?
red top
not purple top because it has EDTA which is bacteriocidal use these for cytology
What samples should be taken for tox studies?
urine (kidney), fat, stomach contents, liver
Where is the best place to sample tissue for pathology findings
at edge of lesion and healthy tissue where teh changes are happening
What is the ratio of sample to formalin
1:10
What is the thickest a sample should be for the best fixing in formalin soln? Why?
1 cm because it can only penetrate 1/2 cm into tissue sample
true or false
Capsulated organs (ex kidney) are fixed properly with or without bisecting the organ
false need to bisect because formalin can’t penetrate capsule
Fixed properly?
hell no
True or false
Complete your necropsy forms while in bed the night after doing the necropsy
no do them before you leave
