Post Mortem Changes and Non-Lesions

Question 1

Name this morphological change

Answer 1

Chicken Fat Clot

Question 2

What are some common post mortem eye changes?

Answer 2

Corneal opacity

“Cold Cataracts”

Question 3

Name this morphological change

Answer 3

Hemoglobin Imbibition

Question 4

_________ occurs after somatic death due to total diffuse hypoxia

Answer 4

Autolysis occurs after somatic death due to total diffuse hypoxia

Question 5

How do you tell if ingesta in the trachea is significant or not?

Answer 5

Inflammatory response would occur if ingesta was there antemortem

Question 7

Autolysis

Answer 7

Self-digestion or degradation of cells and tissues by the hydrolytic enzymes normally in tissues

Question 8

Rigor mortis occurs due to

Answer 8

Rigor mortis occurs due to depletion of ATP and inability of myosin to detach from actin binding site

Question 9

____________ gives color, texture changes, gas production and odors

Answer 9

Putrefaction gives color, texture changes, gas production and odors

Question 10

Post mortem _________ occurs several hours post death in the heart and vessels.

Answer 10

Post mortem blood clotting occurs several hours post death in the heart and vessels.

Question 11

What is this? What is it caused by?

Answer 11

Bloat Line

Ruminal tympany

Question 12

Chicken Fat Clot

Answer 12

Due to separation of RBCs and clotted serum

Question 13

Tissues with greater concentration of ________ will autolyze the quickest.

Answer 13

Tissues with greater concentration of proteolytic enzymes will autolyze the quickest.

____________________

GI tract, Pancreas, Gall Bladder

Question 14

What is the cause? Is it significant to PM exam?

Answer 14

Due to degradation of capillaries in the nose.

Normal PM

Question 15

Rigor Mortis

Answer 15

Contraction of muscles after death

Question 16

Changes associated with bloat

Answer 16

Rectal/vagninal prolapse

Froth in trachea

Ruptured viscera

Question 17

T/F: We typically give MDx’s to non-lesions and PM change.

Answer 17

False

Question 18

______________ can delay or cause failure of blood to clot.

Answer 18

Coagulopathies can delay or cause failure of blood to clot.

Question 19

Bile Imbibition

Answer 19

Bile in the gallbladder starts to penetrate the wall and stain the adjacent tissues - liver, intestines and diaphragm

Question 20

Cause

Answer 20

Accelerated renal autolysis associated with Clostridium perfringens type D septicemia

Question 21

What is the cause? Is it significant to PM exam?

Answer 21

Wet looking, discolored lungs

Caused by - Barbiturate Euthanasia

Normal

Question 22

What is the cause? Is it significant to the PM exam?

Answer 22

Osseous Metaplasia

Caused by - old age

Normal

Question 23

How do you differentiate bloat from ruminal tympany?

Answer 23

Clinical history and bloat line

Question 24

Pseudomelanosis is commonly see in tissues in contact with the

Answer 24

Pseudomelanosis is commonly see in tissues in contact with the gut

_____________________

Kidney, Spleen, Liver, Gut wall itself

Question 25

Hemoglobin Imbibition

Answer 25

Red staining of tissue, especially the intima of heart, arteries and veins

Question 26

Name this morphological change

Answer 26

Livor Mortis (Hypostatic Congestion)

Question 27

(Antemortem Clot/ Postmortem Clot) - Attached to vessel walls, dry and dull, lamellated and friable.

Answer 27

(**Antemortem Clot**/ Postmortem Clot) - Attached to vessel walls, dry and dull, lamellated and friable.

Question 28

Putrefaction

Answer 28

Process by which post mortem bacteria break down tissues

Question 29

Disease

Answer 29

Pulpy Kidney Disease in Sheep

Question 30

Rate of decomposition depends on

Answer 30

Cause of death Environmental and body temperature Microbial flora

Question 31

MDx

Answer 31

Ulcerative Rumenitis

Question 32

Livor Mortis (Hypostatic Congestion)

Answer 32

Gravity pulls blood post death causing a variation in color of tissues (skin, lung, kidneys). \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Some areas the tissues will be more read and in others more pale

Question 33

(Antemortem Clot/ Postmortem Clot) - Unattached, shiny and wet, elastic and creates a perfect cast of vessel lumen.

Answer 33

(Antemortem Clot/ **Postmortem Clot**) - Unattached, shiny and wet, elastic and creates a perfect cast of vessel lumen.

Question 34

Pseudomelanosis is caused by

Answer 34

Decomposition of blood by bacterial action forming hydrogen sulfide with iron

Question 35

Bloat

Answer 35

Results from postmortem bacterial gas formation in the lumen of the GI tract

Question 36

Rigor mortis begins ________ post death and persits for \_\_\_\_\_\_\_\_\_\_.

Answer 36

Rigor mortis begins **1-6 hours** post death and persits for **1-2 days**.

Question 37

Do herbivores or carnivores bloat faster?

Answer 37

Herbivores, due to increased bacteria in the rumen

Question 38

What is the cause? Is it significant to the PM exam?

Answer 38

Giant, Congested Spleen Caused by - Barbiturate Euthanasia Normal

Question 39

Is ingesta in the trachea always considered significant?

Answer 39

No, could be caused by transport.

Question 40

Hemoglobin Immbibition is caused by

Answer 40

Hemoglobin Immbibition is caused by **hemoglobin being released by lysed RBCs penetrating the vessel wall and extending to the adjacent tissues**

Question 41

Name this morphological change

Answer 41

Bile Imbibition

Question 42

What can cause accelerated rigor mortis?

Answer 42

High heat and high activity before death

Question 43

Pseudomelanosis

Answer 43

Greenish-black discoloration of tissues post mortem