Temperature (AHD)

Question 1

Treshold for hypothermia

Answer 1

35 celsius

Question 2

4 ways to loose heat

Answer 2

Conduction
Convection
Radiation
Evaporation

Question 3

Although 35 celsius is the treshold for hypothermia, what is the temperature at which death occurs?

Answer 3

Generally 25 celsius

Question 4

2 particular findings at the death scene for hypothermia

Answer 4

Paradoxical undressing
Hide and die

Question 4

4 mecanisms for death in hypothermia

Answer 4

Enzyme failure
Cardiac arrhythmia
Electrolyte dysregulation
Internal hypoxia (left shift of O2-Hb dissociation curve)

Question 5

What are some of the morphological findings of hypothermia

Answer 5

Depends on the time at which hypothermia develops (more prominent if longer period of time)
- Frost erythema
- Hemorrhagic gastric erosions
- Lipid accumulation in epithelial cells of renal proximal tubules
- Pink/red lividity (due to left shift of the O2 Hb dissociation curve)

Question 6

Where do we find frost erythema?

Answer 6

Knees, elbows, hip joint

Question 7

T or F: Wischenswki spots lesions are hemorrhagic

Answer 7

NO

Necrosis of mucosa + brown deposit of hematoidin

Question 8

Other ddx than hypothermia for Wischnewski lesions

Answer 8

Shock
DKA
AKA

Question 9

Mechanism of death in hyperthermia

Answer 9

Cardiac arrhythmia
Seizure
Hypovolemic shock
Eventual circulatory collapse

Question 10

Risk factors for hyperthermia

Answer 10

Old and young
Predisposing health condition (alcoholism, obesity)
Extreme exertion
Relative humidity
Diuretics

Question 11

Autopsy findings in hyperthemia

Answer 11

Acute tubular necrosis
Adrenal hemorrhage
Hepatocellular necrosis
Dehydration