Homeostasis Flashcards

1
Q

Purpose of homeostasis

A

Adaptation to stress and state of homeostasis

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2
Q

Homeostasis

A

State of equilibrium or tendency towards that state

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3
Q

Stress

A

Experience a person is exposed to, through a stimulus or stressor

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4
Q

Appraisal

A

Perception of the stressor by a person expressing stress

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5
Q

Stressors

A

Disruptive forces

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6
Q

Medulla

A

Controls vital functions - heart rate / blood pressure

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7
Q

Reticular formation helps with

A

Arousal

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8
Q

Pituitary gland

A

Influenced by hypothalamus
- produces hormones for adaptation to stress and secrete hormones

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9
Q

Frontal cortex helps with

A

Interpreting threat level

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10
Q

Hypothalamus

A

Secretes endorphins during stress

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11
Q

Pituitary gland

A

In brain
- makes antidiuretic hormone that stimulates more hormones or stimulates a hormone

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12
Q

Adrenal cortex

A

Found in kidneys
Stimulates cortisol - stress hormone

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13
Q

General adaptation syndrome (gas)

A

Alarm reaction
Resistance
Recovery or exhaustion

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14
Q

Alarm reaction

A

Hypothalamus releases endorphins
- increasing blood volume / blood glucose

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15
Q

Resistance stage

A

Body stabilize
- responds in opposite manner allowing hormones and cardiac output to return to normal state

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16
Q

Exhaustion stage

A

Body’s response is intensified but energy level runs out
- body can not resist effects of stressor and energy to maintain adaptation

17
Q

Burn out is a result of

A

Chronic stress
- due to being in the exhaustion stage for a long time

18
Q

Function of the sympathetic nervous system (sns)

A

Redirects blood flow to skeletal muscle
- increasing BP / hr/ rr

19
Q

What triggers the sympathetic nervous system to cause an increase in heart rate and blood flow

A

Adrenal medulla releases epinephrine which

20
Q

Hypothalamus directs ______ to increase adh

A

Pituitary

21
Q

Adrenal cortex releases what
- stress hormone

A

Cortisol

22
Q

Cortisol causes an increase in what

A

Powerful anti inflammatory anti immune response
- burst on energy
Highened memory functions
Burst of increase immunity
Lower sensitivity to pain

23
Q

What happens when you have a prolonged period of high cortisol levels?

A

Impaired cognitive performance
High blood sugar
Decreased bone density
Decrease muscle tissue
Lowers immunity in general

24
Q

True or false
Stress affects immunity

A

True

25
Q

True or false

During the exhaustion stage stress can make a person sick

A

True - body gets tired from the over use and production of hormones

26
Q

PTSD

A

Repeated re experiencing of a highly traumatic. Event that involved extreme threat / injury

27
Q

Major features/ characteristics of PTSD

A

Persistent avoidance of stimuli that will trigger
Persistent increased arousal
Substance abuse

28
Q

What meds are commonly given for ptsd

A

Antidepressants - Ssri
Antiolytics

29
Q

Compassion fatigue

A

A form of burnout when a persons physical demand outweighs mental

30
Q

Second victim syndrome

A

A health care worker does a medical arrow leading to harm of a patient causing them to have ptsd
- feel bad/ harmful thoughts

31
Q

What is the nurses role when a patient is stressed?

A

Establish trust!!
- listen to patient / guide to wellness
Teach how to handle / get rid of stressors

32
Q

Crisis intervention

A

Brief psychotherapy that creates goals for patient safety and anxiety reduction