Death and Related Matters Flashcards
(158 cards)
Is death a singular event or a process
It is a process
Involves brain death, cellular death etc.
One after the other
Is there a legal definition of death
No
Death is determined by your Dr
What if death is a process, how can time of death be recorded
For ToD recording, death is treated as a singular event
The doctor will record the approximate time - this becomes the official ToD
Usually the point they are deemed lifeless
What is taphophobia
The fear of being buried alive
What were safety coffins
Coffins built with safety features to ‘avoid’ being buried alive
Features include: ropes/levers connected to bells/flags, windows in coffins, hatches with keys, air tubes, trumpets etc.
Describe the history of premature burials
Many ‘genuine’ recorded cases in history - actually rare
Fear peaked during cholera epidemics in the 18th and 19th century
Usually only the upper classes that could afford safety measures like specialised coffins
Describe the German portable death chamber
Aimed to prevent premature burial Chamber with bell & window placed over empty grave
Watchman checked for signs of life or putrefaction over a few days
Floor opened into grave
Grave covered & filled
Chamber reused
Describe the Dr Taberger coffin design
Strings to head, hands & feet of corpse
Attached via tube to bell above ground
Any movement would raise alarm via the bell
Watchman used bellows & air tube before digging up
List the features of the Caselli safety coffin from the 90s
Alarm Intercom Torch Breathing apparatus Heart monitor & stimulator
For those with extreme fear - often have to be rich
List the stages of death
Apparent death (cardiac arrest, LOC) Brain death - sequential Somatic (clinical) death of person as a whole - this is what doctors 'diagnose' Cellular/molecular death Putrefaction
At which point during the death process is resuscitation possible
After apparent death - e.g. cardiac arrest or loss of consciousness
but before brain stem death (as this is irreversible)
Can sometimes resus after brain death begun if only the cortex is affected and stem is still alive - undesirable as will have no QoL
In which order do parts of the brain ‘die’ during the death process
First is the cerebral cortex - higher centers
Then the brain stem - this is the essential part
Then the whole brain dies - whole thing is hypoxic
What is the definition of resuscitation
Comes from latin - to raise again
To bring someone or something back to life or consciousness
To revive from unconscious.
Make active or vigorous again
List potential methods of cardio-pulmonary resuscitation (modern)
Mouth to Mouth Resuscitation
External cardiac massage (chest compression)- manual or now have machines that can do chest compressions
Defibrillation (electric shock)
Drugs (Adrenaline & Atropine)
Intubation & ventilation - helps with oxygenation
List some historical methods of resuscitation
Early - heat application or flagellation (whipping) - both provide stimuli
Bellows - similar to modern ventilation
Fumigation - smoke up rectum
Inversion - increase blood flow to brain
Rolling someone over a barrel - may compress chest and cause lung movement
Bury in snow - Russian method
Trotting horse method - again may cause cardiac massage
Mouth to mouth appeared in 50s
CPR - 70s
What is mean by apparent death
No or minimal signs of life, but responsive to prolonged resuscitation
In which situations are people often responsive to prolonged resuscitation
Electrocution - respiration paralyzed Drowning Overdose Hypothermia Children - brains are very resilient to hypoxia
Therefore resus may be attempted for longer in these scenarios
What are the clinical signs of death
Collapse with LoC & Muscle flaccidity (lost innervation)
Cessation of heartbeat (pulse)
Cessation of breathing
Dilated, fixed pupils - no response to light
What is involved in the clinical assessment of death
History & circumstances
Signs - e.g. cessation of pulse/breathing
Physical examination & auscultation - pulse, breath sounds etc.
Resuscitate if in doubt
If there is doubt that a patient is actually dead what should you do
Attempt resuscitation!
No harm in trying
What is included in the triad of Bichat for death confirmation
The failure of the body as an integrated system associated with irreversible loss of circulation, respiration and innervation
Loss of spontaneous heartbeat (circulation)
Irreversible loss of capacity to breathe (respiration)
Irreversible loss of consciousness (innervation)
Who can pronounce death
Usually has to be a doctor
In some cases a nurse can pronounce
Police are unable to even if obvious
When was the concept of brain stem death introduced
1959 - due to organ donation requirements
Needed organs but needed a way to determine the donors were ‘dead’
Describe the natural progression of a cardiac death
Starts with the disease or injury -e.g. atherosclerosis/thrombosis
1 - Primary cardiac arrest (e.g. due to infarction)
At this point CPR would be helpful
2 - Cerebral hypoxia
3 - Secondary respiratory arrest - caused by brain stem involvement
4 - Somatic (clinical) death
5 - Cellular death