Pain lecture Flashcards
what is pain
The International Association for the Study of Pain define pain as:
* “ an unpleasant sensory or emotional experience associated with actual or potential tissue damage, or described in terms of such
damage”
Pain is :
* Unpleasant
* A sensory experience
* An emotional experience
* A warning signal
when is pain experienced, what is protective mechanism
- Pain is common-experienced by everyone at some point in their life
- Protective mechanism- as it makes the patient aware that tissue damage;
- is occurring
- has occurred
- is about to occur
- Different classifications occur and the classification used depends on the cause, timeframe and nature of the pain
- Pathopysiology is complex
- Perception is multi-factorial
factors influencing pain
age
cause
coping strategies
factors affecting threshold - lowered
Insomnia, fatigue
Discomfort, pain (presence or fear of recurrence)
Anxiety, depression, sadness
Fear, anger, social and mental isolation
Boredom
factors affecting threshold - highered
Sleep, rest
Relief of symptoms
Sympathy, anxiolytics, antidepressants
Companionship, understanding
Diversional activity, occupational therapy
what are the three classifications of pain
clinical
Temporal
Neurophysiological
clinical pain
This describes the severity in terms of:
* Mild
*Moderate
* Severe
Can be influenced by previous experience
temporal pain
Acute
Chronic
* Persists or progresses over a long period of
* Accident trauma, sudden illness,
time
after surgery
* Cancer. Diabetes.
* Neuropathic disorders.
* Expected to diminish over time
* Aids. Arthritis.
* Nervous system is intact and
* Chronic pathological process
damage is usually self limiting
* Autonomic nervous svstem adapts
* Accompanied by autonomic
* Can affect
hyperactivity
* Personality
* lifestyle
* ^ BP, sweating and flushing
* Functionality
Pain is divided into two main categories according to its origin and duration
Neurophysiological
lacerations, arthritic pain, post-operative pain
* Can be:
* Somatic; sharp localised and has an external cause ,e.g. a stab wound
* Visceral; poorly localised, dull and diffuse and can be periodic, can also be referred e.g. heart attack
Non-nociceptive
- Caused by continuing or previous damage to nerves
- Neuropathic pain
- Surgery
- Trauma
- Medical conditions
- Phantom limb pain
- Post- herpetic neuralgia
- Trigeminal neuralgia
- Diabetic neuropathy
Causes of pain
assessment of pain
HCPs should use an assessment tool appropriate for the type of pain, clinical setting and the individual.
* Key point; assessment should be made by the sufferer and their report listened to.
* Assessment strategies include
* Communication
* Examination
* Observation
* Measurement
communication- assessment of pain
Need to be able to explain pain mechanisms in a way the patient can understand
* Question and listen to establish information about the patients pain experience and history:
* ocation
* intensity
* frequency
* duration
* whether it is relieved by medicines and if so which ones and for ho
assessment of pain- observation
Grimace
* Roll around in agony
* Shout
* Sit still
* Be Quiet
* Observations mav also include respiratory rates and blood pressure