Autopsy Flashcards
“See for yourself”
Autopsy
A post mortem examination preformed to determine the cause of death.
Autopsy
Gold standard for confirmation of a medical disease.
Autopsy
[4] Types of autopsy (uses)
[FCAV]
Forensic autopsy
Clinical or pathological autopsies
Anatomical or academic autopsies
Virtual or medical imaging autopsies
Seek to find the cause and the manner of death and to identify the decedent.
[autopsy (use)]
Forensic autopsy
Performed to diagnose a particular disease or for research purposes. To clarify and confirm medical diagnosis that is unclear prior to the patients death.
Clinical or Pathological Autopsies
Performed by students. For study purposes only.
Anatomical or Academic Autopsies
Utilizes imaging technologies only, MRI and CT.
[autopsy (uses)]
Virtual or Medical Imaging Autopsies
[3] Types of Autopsies (anatomical parts)
[CPS]
- Complete autopsy
- Partial autopsy
- Selective autopsy
Requires consent.
[autopsy (anatomical)]
Complete autopsy
Part of the anatomy.
[autopsy (anatomical)]
Partial autopsy
Restricted to at least a single organ (Ex. MI
heart.
[autopsy (anatomical)]
Selective autopsy
Complete examination of all organs, including the brain.
[autopsy (anatomical)]
Complete autopsy
In a forensic autopsy, a MEDICAL EXAMINER or CORONER declares the death to be:
[NAHSU]
Natural
Accident
Homicide
Suicide
Unknown
[4] Preliminaries
[WDMM]
- Written consent
- Death certificate
- Medical abstract or Clinical data
- Medico-legal clearance
From the next kin-abide by the extent or restrictions allowed.
[preliminaries]
Written consent
(Old: Blue form | New: Blue border/frame)
[preliminaries]
Death certificate
[2] Who signed the death certificate
[preliminaries]
- Physician
- Pathologist
He will sign when PME has been performed.
[preliminaries]
Pathologist
Suspicious evidence of foul play.
[preliminaries]
Medico-legal appearance
[2] Physical examination
- External
- Internal
Physical outer layer – for injuries / cause of death.
[physical exam]
External
[4] Steps in External in Physical examination
[PSUM]
Photographed
Samples taken
Undressed, examined for wound
Measured, weighed, cleaned
Evidence of disease, trauma, toxic substances, organ failure.
Internal
[5] Steps of an Internal Examination
[ICROB]
- Incisions
- Cuts
- Removal
- Organs weighed, examined
- Brain examination
[2] Types of Incisions
Y and T
Behind each ear, down the neck, meet mid-sternum, continue to the groin.
[incision]
Y
For suspected strangulation – 50% no ext. signs.
[incision]
Y
Show fractured HYOID bone.
[incision]
Y
From each shoulder, meet top of sternum, continue to the groin.
[incision]
T
Better looking finished product.
[incision]
T
Chest cavity cut open w/shears or saw.
[internals steps]
Cuts
[2] methods of removal in incisions.
- Letulle’s “En Masse” method
- Ghon;s “En Bloc” method
[7] Postmortem changes
[ARL, PDPD,]
- Algor mortis
- Rigor mortis
- Livor mortis
- Postmortem clotting of blood
- Discoloration of tissue
- Putrefaction
- Dessication (mummification)
1st demonstrable change after death is cooling of the body.
[postmortem changes]
Algor mortis
Rigidity of the body due to hardening of the skeletal muscles caused by a series of physiochemical events after death.
[postmortem changes]
Rigor mortis
Blood supply gravitates to the skin vessels w/c becomes toneless & dilate after circulation ceases.
[postmortem changes]
Livor mortis
Tardien sports of Livor mortis
Petechiae
[4] Principal techniques of autopsy
- Technique of R. Virchow
- Technique of Rokitansky
- Technique of A. Ghon
- Technique of M. Letulle
Isolated and dissected immediately after removal.
[autopsy technique]
Technique of R. Virchow
Organs are removed ONE BY ONE sequentially.
[autopsy technique]
Technique of R. Virchow
This technique is characterized by IN SITU DISSECTION combined w/ en bloc technique.
[autopsy technique]
Technique of C. Rokitansky
Cavities and organs are thoroughly inspected.
[autopsy technique]
Technique of C. Rokitansky
Organs are dissected while inside the body.
[autopsy technique]
Technique of C. Rokitansky
Thoracic and cervical organs, abdominal organ, and the uro-genital system are removed as organ block.
[autopsy technique]
Technique of A. Ghon
Thoracic, cervical, abdominal and pelvic organs are removed en masse and subsequently dissected into organ blocks.
[autopsy technique]
Technique of M. Letulle
Best routine method for inspection and preservation of connections between organs and the organ system.
[autopsy technique]
Technique of M. Letulle
Body is cut open in the usual fashion.
[autopsy technique]
Technique of C. Rokitansky
Cavities and organs are thoroughly inspected.
[autopsy technique]
Technique of C. Rokitanksy
Fluids are collected if needed.
[autopsy technique]
Technique of C. Rokitansky
Organs are dissected while inside the body.
[autopsy technique]
Technique of C. Rokitansky
By cavity
[autopsy technique]
Technique of A. Ghon
Interrelated to each other.
Technique of A. Ghon
Abdomen:
[discoloration of tissue]
Green
Blood supply gravitates to the skin vessels w/c becomes toneless & dilate after circulation ceases.
[postmortem changes]
Livor mortis
Becomes evident as early as 20 mins after death.
[postmortem changes]
Livor mortis
Fully evident w/in 4-8 hrs..
[postmortem changes]
Livor mortis
Sets within 2 hrs. after death (head & neck).
[postmortem changes]
Rigor mortis
Complete within 12 hrs.
[postmortem changes]
Rigor mortis
Persists about 3-4 days.
[postmortem changes]
Rigor mortis
At room temp:
[Algor mortis]
2 - 2.5 °F/hr (1st hr)
Next 12 hours:
[algor mortis]
1.5 - 2 °F/hr
Next 12-18 hours:
[algor mortis]
1°F/hr
Not a reliable indicator as to the time of death.
[postmortem changes]
Algor mortis
(-) ATP regeneration + acidity formation of lockingchemical bodies between actin & myosin.
[postmortem changes]
Rigor mortis