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Pain
Sensation of physical or mental suffering or hurt that causes stress or agony to the one experiencing it.
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Acute Pain
- Rapid onset
- Mild to severe
- Acts as protective measure
- Dissapears when resolved
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Chronic Pain
- Lasts longer than typical healing period
- Periods of exacerbation and remission
- Difficult for patient to describe, poorly localized
- Often perceived as meaningless
- May lead to anger, depression, dependency, frustration
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Cutaneous Pain
- Involves the skin or subcutaneous tissue
- Example: paper cut
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Somatic Pain
- Originates in bones, ligaments, joints
- Example - sprained ankle
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Visceral Pain
Originates in body organs
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Neuropathic pain
Results from an injury to or abnormal functioning of the CNS.
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Sympathetic
Pain is moderate and superficial, acute
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Parasympathetic
Pain is severe deep and chronic
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Radiating pain
Perceived at source of pain and extends to nearby areas
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Referred Pain
Pain perceived in one area bit source is in another
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Intractible pain
Pain that is highly resistant to relief
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Phantom pain
Painful sensation perceived in a missing body part
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Pain threshold
Amount of pain stimulation a person needs in order to feel pain (lowest intensity)
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Pain tolerance
- Point at which person is no longer willing to endure pain
- Varies and influenced by psychological and socio-cultural factors.
- Also need to look at the meaning of pain
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Assessment -
- Verbalization of pain
- Location
- Onset/duration
- Intensity
- Quality
- Aggravating fators
- alleviating factors
- Behaioral responses
- Effects of pain
- Physiologic indicators
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Diagnosis
Determine if the pain is acute or chronic
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Planning
Focus is to assist the patient to develop effective pain management strategies
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Implementation
- Establish a trusting relationship
- Manipulate factors affecting the pain experience
- Initiate non pharmacologic measures
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Adjuvant Drugs
Drugs that are typically used for other purposes but enhance the effects of opioids by providing additional relief.
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Patient Controlled Analgesia
Medication delivery system that allows the patient to self administer safe doses of opioids
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Opioid Analgesics
- Manages moderate to severe pain
- Side Effects include - Sedation, nausea, constipation, hypotention.
- WATCH FOR RESPITORY REPRESSION!!!
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Non-Opioid
- Management of Mild to Moderate Pain
- Some over the counter
- May cause Gi bleed or upset
- Watch with pts with bleeding disorders
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Psychogenic Pain
Physical cause of pain cannot be identified
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Nociceptors
Nerves that transmit pain
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Neurotransmitter
Substances that either excite or inhibit
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Transduction
Activation of Pain Receptors
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Non-Pharmacologic
Humor - Music - Disrtraction - Imagery - Relaxation - Hot and cold therapy - Massage - Touch
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Three responses to pain?
Physiologic, behavioral and affective
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Transduction
The activation of pain receptors.
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Gate control Theory
describes the transmission of painful stimuli and recognizes a relation between pain and emotions
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