Post Mortem Examination
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What is a necropsy?
An examination of an animal after death
What is the purpose of a post mortem examination?
To determine the cause of death or extent of disease
List different reasons for performing a post mortem examination
- Determine cause of death
- Determine extent of disease/confirmation of pre-mortem diagnosis
- Unknown illness
- Unexpected/sudden death
- Herd health issues
- Legal cases
What are the two main approaches to a PM examination?
Left lateral recumbency or dorsal recumbency
List some examples of PM artefacts
- Rigor mortis
- Gravitational hypostasis/hypostatic congestion
- Postmortem blood clots
- Colour changes
- Postmortem imbibition
- Postmortem crepitation
- Sodium phenobarbitol effects
What are the effects of sodium phenobarbitol (euthanasia)?
- Brown, crumbly blood in right atrium
- Firm plaques
- Pulmonary oedema
How thick should tissue samples be for histopathology?
Less than 1cm thick in at least one dimension
What are samples for histopathology submitted in?
Formalin (1:10 ratio) in a wide mouth, leak proof jar
How are samples submitted for bacteriology/virology?
At least 1cm of fresh tissue is submitted on ice
How much tissue should be submitted for toxicology?
How much faeces should be submitted for parasitology?
What would you like to do?
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