NCMB 312 Midterms Reviewer PDF

Summary

This document is a reviewer for the NCMB 312 midterms, covering the topic of pain. It details pain physiology, types, causes, and theories. It also includes information on pain perception, response, and assessment.

Full Transcript

This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 PAIN - Unpleasantsensory,emotionalexperienceassociatedwithactualorpotentialtissu...

This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 PAIN - Unpleasantsensory,emotionalexperienceassociatedwithactualorpotentialtissue damage. Causes distress and agony; it could be subjective in nature and protective nature. Radiating pain- travels from one body part to another Referred pain- pain felt caused by pain or injury in another part of the body Persistent pain- goes on for longer than would be expected after an injury or illness Severe pain- emergency situation deserving attention and professional treatment Intractable pain- no cure is possible Hyperalgesia/Hyperpathia- increased sensation of pain Allodynia- sensation of pain from a stimuli normally not producing pain Dysesthesia- imitates the pathology of central neuropathic pain disorders Pain threshold- least amount of stimuli needed for a person to label a sensation as pain Pain tolerance- maximum amount of pain stimuli that a person is willing to withstand Pain perception- the actual feeling of pain Pain reaction ANSresponse-automaticreactionofthebodythatoftenprotecttheindividualfrom further harm somatic: skin, muscles, joints Behavioralresponse-methodtocopewithpain(subjectiveorobjective) visceral: internal organs Nociceptive pain- physiologic pain; pain directly related to tissue damage and may be somatic or visceral Neuropathic pain- pathologic pain; pain associated with damage or malfunctioned nerve due to illness Sensitization- increased sensitivity of receptor Wind-up- progressive increase in excitability and sensitivity of spinal cord neurons Bradykinin- universal stimulus of pain Breakthrough pain- a transitory increase in pain that occurs in a background of otherwise controlled persistent pain Comfort- renewal amplification of power; freedom from pain according to Kolkava, the context of comfort occurs in physical, psychospiritual, environmental, sociocultural - Relief- the experience of having a specific need to meet - Ease- state of calm or contentment - Transcendence- state in which client rise above problems or pain Theories of Pain - PatternTheory- pain is perceived whenever stimulus is intense enough. Different sensation are detected by the same nerves - SpecificityTheory- one of the earliest known theories for pain; there is a specific nerve receptor particular stimuli (Ex: Nociceptor). Developed by Max von Frey - GateControlTheory- nerve-based theory; states that a metaphorical gate that either blocks or allows pain to travel to the spinal cord and brain. Substantia gelatinosa plays an important role in this theory - Affect Theory- it states that pain is emotional I'm go fin so e so y w o mi t ac l t e me we ~St. Tay Swi Flexcil - The Smart Study Toolkit & PDF, Ann This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 - Parallel Processing Model- physiologic or neurologic deciphering of pain sensation and cognitive emotional proper occur along different nerve fibers Triad of Pain Perception: 1. Pain receptor- free nerve endings that respond only to intense, potentially damaging stimuli 2. Painstimuli- mechanical (trauma, tumor, pressure etc.) thermal (extreme hot and cold), Chemical (ischemia, lactic acid) 3. Pain fibers- Type A-Delta fibers (myelinated) fast and sharp pain, Type C fibers (unmyelinated) dull and slow pain Types of Pain ~By Location - Referredpain- arise from different area - Visceralpain- pain in visceral organs or internal organ; vague and not localized ~By Duration - Acute- when pain last only through expected recovery period regardless of intensity - Chronic- persistent pain; prolonged and recurrent pain that last 2-6 months or more - Cancer- results of direct malignancy or caused related to the disease or the treatment of cancer; also known as malignant pain ~By Intensity - Mild- 1-3 in scale - Moderate- 4-6 in scale - Severe- 7-10 in scale ~By Etiology - Physiological- when functioning nervous system detects tissue damage - Somatic- pain from bones, joints, connective tissues - Visceral- pain from internal organs - Cutaneous- pain over the body surface or the skin - Radiating- pain that extends from nearby area where the cause of pain is - Neuropathic- nerve damage pain or malfunctioned nerve - Peripheralneuropathic- sensitization of peripheral nerves - Centralneuropathic- results from malfunctioning nerves in the central nervous system - Sympatheticallymaintained- abnormal connection of pain fibers and sympathetic nervous system perpetuates pain - Psychogenic- no known pathologic cause; typically mental, emotional and psychological cause - Idiopathic- no known cause Clinical manifestation of Pain - Post-herpeticneuralgia- burning sensation and electric shock like pain caused by shingles or chickenpox. Zostavax can modulate the pain - Phantompain- phantom sensations - Phantomlimbpain- feeling of lost body part is present after limb amputation I'm go fin so e so y w o mi t ac l t e me we ~St. Tay Swi Flexcil - The Smart Study Toolkit & PDF, Ann This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 - Post-mastectomypain- feeling of a lost breast is present after breast surgery - Trigeminalpain- stab-like pain; AKA Tic Douloureux - Headache- can be intracranial or extracranial - Fibromyalgia- pain all over the body - Intermittentpain- episodic pain regardless of intensity - Intractablepain- pain that resistant to cure or relief Pain Physiology - Transduction- noxious stimuli activates the afferent neurons, thus nociceptors gets excited Transmission- pain impulses travels to spinal cord (1st segment) Pain travels to ascending - pathway (2nd segment) Transmission of signal to thalamus down to somatosensory area of the cerebral cortex Perception- client becomes conscious to the pain Modulation- descending system, where neurons sends signal back to the doral wall of spinal cord; - releases substances that inhibits the painful stimuli (endogenous opioids) like endorphins, - epinephrine and norepinephrine Capsaicin-depletesthesubstanceP I'm go fin so e so y w o mi t ac l t e me we ~St. Tay Swi Flexcil - The Smart Study Toolkit & PDF, Ann This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 Excitatory glial cells produces amino acids that can prolong pain (glutamyl n-aspartate) Pain Pathway Stimuli → Nociceptor → A Delta Fibers/C-Fibers → Ganglion → Dorsal Horn of the Spinal Cord → Spinothalamic tract → Thalamus → Cerebral cortex = Response Factors Affecting Pain Perception - Ethnic and Cultural Values - Age and Developmental Stage - Environment and support people - Previous pain experiences - Meaning of Pain Pain Response - Involuntary- Physiological response = mediated by sympathetic and parasympathetic nervous system - Voluntary- behavioral or emotional response Pain Assessment Tool C - Character - Description of pain Ex: Sharp, Burning O - Onset - When was the pain started (Acute or Chronic) L - Location - Specific region/parts of body D - Duration - When is usually pain occur or subsides S - Severity - Describe the intensity of the pain (Ex: bearable or unbearable) P - Patterns - how often does the pain attack or when it is usually occurs (Ex: Night time) A - Associating Factors - Factors that might contribute to the pain (Ex: Post-op) Wong-Baker Face Rating Scale- pain scale of 1-10 associated with facial grimace. Useful for pediatric assessment Pharmacologic Pain Management - RationalPolypharmacy- combination pharmacotherapy; one or more pharmacologic therapy with more synergistic effect - MultimodalTherapy- uses pharmacologic and non pharmacologic approach to control pain I'm go fin so e so y w o mi t ac l t e me we ~St. Tay Swi Flexcil - The Smart Study Toolkit & PDF, Ann This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 WHO 3 Steps Analgesic Ladder Pain Management Concept - Ceilingeffect- maximum analgesic benefit of the drug is achieved and additional amount will not produce more analgesic effect I'm go fin so e so y w o mi t ac l t e me we ~St. Tay Swi Flexcil - The Smart Study Toolkit & PDF, Ann This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 - Equianalgesia- approximately the same pain relief when the drug is given different routes. Use equianalgesic table - Placebo- produces an effect in the client because of its implicit/explicit effect and not because of its specific physical or chemical properties Types of Opiods 1. Fullagonist- has an agonist effect; no ceiling effect (Ex: Morphine) 2. Mixed agonist-antagonist- block and inactivate other opioid analgesics; it has ceiling effect (Ex: Nalbuphine HCl or Nubain) 3. Partial agonist- has ceiling effect; considered safe and has favorable side effects (Ex: Tramadol or Ultram) Types of Coanalgesics Coanalgesics- medication that is not classified as pain medication but may produce pain relieving properties and appear to be particularly beneficial for the management of neuropathic pain. Also known as Adjuvants - Tricyclicantidepressants- useful for central neuropathic pain - Anticonvulsants- useful for peripheral neuropathic conditions - Topicallocalanesthetic- alleviate neuropathic as well as other types of pain Routes of Opiates Delivery - Epiduralspace- commonly used intraspinal route of administration of pain medications - Continuouslocalanesthetics- continuous subcutaneous administration of long acting local anesthetics - Patient-controlledanalgesia- permits clients to treat their pain by self-administration of analgesia. Ex: IV route of fentanyl, Morphine, Hydromorphone (Dilaudid) Surgical Management of Pain - Neurectomy- removal of nerve supplies - Rhizotomy- removal of dorsal anterior, posterior nerve root area near spinal cord treat chronic back pain - Cordoctomy/Spinothalamictractotomy- surgical removal of the anterolateral pathway where pain is present. Useful for treatment of cancer pain - Tractotomy- resection of anterolateral pathway in the brainstem. Treats severe headache and trigeminal neuralgia - Gyrectomy- removal of post central gyrus, a part of cerebral cortex - Hypophysectomy- removal of pituitary gland. Treats cancer pain - Nerveblock- chemical interruption of nerve pathway by injecting local anesthetic nerve. Used in different surgical procedures - Sympathectomy- pathway of sympathetic division of autonomic nervous system is cut and cauterized I'm go fin so e so y w o mi t ac l t e me we ~St. Tay Swi Flexcil - The Smart Study Toolkit & PDF, Ann This Document has been modified with Flexcil app Property of: Alfie Velasco BSN 3-Y1-11 Non-Pharmacological Interventions for Pain I'm go fin so e so y w o mi t ac l t e me we ~St. Tay Swi Flexcil - The Smart Study Toolkit & PDF, Ann

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