Death Flashcards
Learn about Dying (48 cards)
Death
How has death reduced in Dev Nations?
- Increased Average Life Expectancy due to better medicine
- Lots of eliminated diseases ⤇ 54% ☟ Mortality from 1900 ➨ 2010
- ☝︎ Hygiene
- ☝︎ Healthcare access
- Lower Childhood Mortality
Death
Why do Men die before Women?
- Bigger Risks
- Increased heart disease risk
- ☟social connection and going to doctor
- ☝︎ suicide success
Death
What determines longer lifespan
- Height: Shorter = Better
- Ethnicity
- Socioeconomic Status: Higher = Better
QOL Old People
Why is it low and what does it cause?
- Disabilities, Loneliness
- Most healthcare costs ain US
Death
How has life span decreased?
- No universal Healthcare
- ☝︎Obesity and correlating diseases
- ☝︎Childhood Mortality
- ☝︎OD deaths
Medical Advances
What advances have increased life span?
- Artificial feeding
- Dialysis
- Cardiopulmonary Bypass (CPB)
- Mechanical Ventilation
- Defibrilation and Artifical Pacemaker
Med Advances
Why are they bad?
- Lasts a few years and is expensive
Dead
Definition
- 60s: Brain, Lungs, Heart Stopped
- But aft 60s, could continue heart beating w/o brain and lungs
- Cardiopulmonary Failure Definition: Stop Breathing / Heart Stops Beating
Dead
How and why is a heart harvested?
- Needs to be beating for transplant
- Gotten from brain dead individual
Dead
Harvard Brain Death Committee
- 1968
- Brain Death = Irreversible Coma
- 4 Criteria for brain death:
- Unreceptivity and unresponsivity to external stimuli
- No movements or breathing
- No reflexes: Fixed, dilated pupil, no reaction
- Flat EEG
- Losing Identity = Death
Coma
What is it?
- Loss of conciousness
- Closed Eyes
- No pupil response
- Not awakened by talk or touch
- Breathing on own but irregular
- Decreased brain function
- Usually less than several weeks
- Like Anesthesia
- NOT SLEEP
Coma
What causes it?
- Medically-Induced: ☟O2 needs
- Illness
- Injury
- Aneurysm
- Blocked Artery
- Diabetes
- Alcohol and Drugs
- Drowning
Coma
How is it evaluated?
- Levels of Coma
- Levels of responsiveness
- Rancho Los Amiogo Scale (while emerging)
- Glasgow coma scale: 3(worst) ➞ 15 (while in coma)
Coma
Coma vs Vegetative State
- Awake but unresponsive
- Often emerge from deeper coma into vegetative coma
- No response to stimuli
Coma
What is a Vegetative State
- Last > few months→ most irreversible → Permanent (>12 mo)
- Very poor outcome
- Deep unconsciouness and unawareness
- wakeful but profound unresponsiveness
- Non-functional cerebral cortex
Coma
What can people in vegetative state do?
- Eyes may follow
- Laugh or cry without reason
- Grind teeth, swallow, smile, shed tears, grunt, moan, scream
- No external stimuli
Coma
Persistent Vegetative State
- Feeding tube/ intervenous feeding can keep alive
- Previously would have starved to death
Coma
Recovery
- Depends on Case:
- Diabetes = quick
- Drugs and alcohol = quick
- Brain = long/never
Drugs
Drug abuse impacts
- Addiction
- Medical: Neurotixicity. AIDS, Cancer, Mental illness
- Social
- Economic: $3.73 Triilion
Drugs
Addiction Definition
- Continuing, compulsive use of a substance that occurs despite negative consequences to the user
Drugs
What does it affect/is affected by?
- Young brains more susceptible: brain “molds” around activity
- Multiple factors:
- Biology / Genes: Mental Health
- Environmental: Trauma
- Brain Mechanisms
Drugs
Why take drugs?
- Feel Good: Novel feelings, sensations, experiences
- Turns into Feeling Better: Lessen anxiety, worries fears, depression, hopelessness
Addiction
Affected Brain Regions
- Activate Nucleus Accumbens: Motivation + pleasure ➞ drugs activate: CRAVING SENSATION
- Activate Ventral Tragmental Area (VTA): pleasure center with lots of connections to N.A. ➞ RUSH SENSATION
- Depressed Frontal Cortex: Worse decision making and altered memories
- Serotonin and Dopamine increased
Addiction
Olds and Milner Experiment
- Animal Model for addiction in humans
- How it was conducted
1. Put electrode in NA
2. Rate stimulated with pedal- Pressed many times per hour
- Did it while starving and dehydrating themselves
- Activated and sought activation even with negatvie consequences