Exam (elaborations)
NUR 321 - Pathophysiology (RU) Chapter 9.
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NUR 321 - Pathophysiology (RU) Chapter 9.
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NUR 321 - Pathophysiology (RU) Chapter 9age - ANS-immature infants and elderly are less able to adapt
allostasis - ANS-adaptation; maintains balance by the ability to change
components of PTSD symptoms - ANS-*intrusion* - flashbacks, recall the event, can
happen any time, intrudes into daily living
*avoidance* - worried about having flashback during social events so avoids social
interaction, emotional numbing
*hyperarousal* - irritability occurs during human encounters b/c they don't want personal
interaction
insomnia and anxiety results
coping mechanism - ANS-emotional and behavioral responses to stressor
disorders of the stress response - ANS-acute stressor - loss of job
chronic - herpes
chronic sustained - lifelong; arthritis, Alzheimers
limited short term
effects of acute stress - ANS-divert blood to major organs to react better but may
increase headache, cardiac embolus (AMI)
effects of chronic stress - ANS-chronic illness, behaviors
ETOH, smoking, emotional disturbances, HSV outbreak increase during stress (exam),
etc.
effects of stress and cortisol on the immune system - ANS-decreased immune cell
production
decreased thymus activity so the body does not respond to antigens and more apt to
get really sick
changes in the type of immune cells produced
endocrine response - ANS - ANS-ANS stimulates release of corticotropin releasing
factor, which initiates the response or stimulates anterior pituitary to secrete ACTH
which stimulates adrenals to secrete cortisol (stress mediator)
endocrine response - SNS - ANS-SNS activates renin-angiotensin-aldosterone system
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