Pain Management Flashcards
Visceral pain: associated with
internal organs
Visceral pain: sensitivity
can be different depending on organ
Visceral pain: internal organs: not sensitive to pain
lack nociceptors may withstand great deal of damage without causing pain spleen kidney pancreas
Visceral pain: internal organs: sensitive to pain
significant pain from even slightest damage stomach bladder ureters
Visceral pain: area
poorly defined area
Visceral pain: capable of
referring pain to other remote locations away from area of injury
Visceral pain: description
squeezing cramping deep ache within the internal organs
Visceral pain: pt c/o
generalized “sick” feeling nausea and vomiting
Visceral pain: treatment
opioids
Neuropathic pain: results from
injury to nervous system
Neuropathic pain:injury to nervous system from
cancer cells compressing nerves or spinal cord actual cancerous invasion into the nerves or spinal cord chemical damage to nerves caused by chemo and radiation diabetes alcohol trauma nerualgias illness affecting neural path: centrally or peripherally
Neuropathic pain: damaged nerves
unable to carry information
Neuropathic pain: damaged nerves: pain
severe distinct pain messages
Neuropathic pain: damaged nerves: relay pain
long after the original cause of the pain is resolved
Neuropathic pain: description
sharp shooting burning shocking tingling electrical in nature
Neuropathic pain: travel
length of nerve path from spine to distal body part such as hand, or down buttocks to foot
Neuropathic pain: ineffective treatement
NSAIDs opioids
Neuropathic pain: opioids: adjuvants
adjutants may enhance the therapeutic effect of opioids
Neuropathic pain: treatment
nerve blocks
Pain assessment: sources
gathered from a variety observations interviews with patient and family medical records
Pain: remember
subjective and personal
Pain level: definition
whatever the patient says it is
Pain assessment
location duration or length onset or when it begins intensity per pain scales
Pain: influeneces
psychological social spiritual
Pain: helpful in defining pain
behavioral assessments psychological assessments subjective assessments physical demeanor vital signs
Pain: best assesment
patient’s own report all other information is assessed as supporting this report
Pain: physical s/s: vital signs
systolic blood pressure heart rate respiration
Pain: physical s/s
vital signs muscle groups posturing verbalization facial expressions
Pain: physical s/s: muscle groups
tightness or tension may be felt in major muscle groups Posturing can also occur: guard areas of body, curl around themselves in a “fetal” position, hold only certain body portions rigid
Pain: physical s/s: verbalization
calling out increased volume in speech moaning
Pain: physical s/s: facial expression
flat affect grimacing distraction from surroundings
Somatic pain: definition
refers to messages from pain receptors located in the cutaneous of musculoskeletal tissues
Deep somatic pain
occurs withing the musculoskeletal tissue
Deep somatic pain: origin
metastasizing cancers
Surface somatic pain
concentrated in dermis and cutaneous layers
Surface somatic pain: origin
surgical incision
Deep somatic pain: description
dull throbbing ache well focused on area of trauma
Deep somatic pain: treatment
responds well to opioids
Surface somatic pain:description
sharper than deep somatic pain burning or pricking sensation directly focused on injury
Classification of pain
nociceptive pain neuropathic pain
Nociceptive pain: two types
visceral somatic
Nociceptive pain: definition
umbrella term for pain caused by stimulation of neuroreceptor
Nociceptive pain: stmiulation
direct result of tissue injury
Nociceptive pain: 4 stages
transduction transmission modulation perception
Nociceptive pain: 4 stages: transduction
a change occurs
Nociceptive pain: 4 stages: transmission
impulse transferred along the neural path
Nociceptive pain: 4 stages: modulation/translation
of the signal
Nociceptive pain: 4 stages: perception
by patient
Nociceptive pain: severity of pain
is proportionate to extent of injury
Nociceptive pain: somatic: location
cutaneous tissues bone joints muscle tissue
Nociceptive pain: visceral: location
internal organs protected by a layer of viscera respiratory gastrointestinal genitourinary
Nociceptive pain: visceral, somatic: treatment
both types are treatable with opioids
Addiction: definition
primary and constant, neuro-biologic disease with genetic, psycho-social and environment factors that create an obsessive and irrational need or preoccupation with a substance
Addiction: behaviors
unrestricted, continued cravings compulsive and persistent use of a drug despite harmful experiences and S/E
Pseudo-addiction: definition
assumption patient is addicted to a substance when in actuality patient is not experiencing relief from medication
Pseudo-addiction: pain
prolonged, unrelieved pain maybe result of under-treatment
Pseudo-addiction: under-treatment
lead patient to become more aggressive in seeking medicated relief resulting in “drug seeker” label
Pain: experience
90% or all advanced disease patient will experience some level of pain
Pain: hospice philiosophy
relief of pain provision for comfort measures for all patients who desire to improve quality of life
Pain: patient’s right
to accept or refuse treatment for pain
Pain: communication
assume patient was experiencing pain, will continue to even in an unconscious state
Pain: non-verbal patient: assessment data
changes in assessment data provide supporting information for continued pain assessments in non-verbal patients
Pain: unidimensional tools for pain assessment
Numeric rating scale (NRS) Visual analog scale (VAS) Categorical scales
Pain: numeric scale
most widely known rate pain 0-10; 0-5 0= no pain; highest number = worst
Pain: visual analog scale
line marked on one end for no pain, other end for most severe patient indicates where he feels pain is line then measured to indicated point and scored
Pain: categorical scales
verbal response visual response
Pain: categorical scales: verbal
mild discomforting distressing horrible excruciating
Pain: categorical scales: visual
Faces Pain Scale, Wong-Baker Faces various facial expressions to choose from
Pain: contolling pain with meds
does not shorten or extend life span
Pain: most common med for severe pain
opioids
Pain: common opioid choice
methadone safe inexpensive
Pain: meds: concerns of family
addiction S/E tolerance to pain-reducing effects
Pain: opioids: concern
addiction is rare respiratory depression concern when patient first introduced
Pain: opioids: respiratory depression
problem when first introduced overcome as body becomes use to opioid
Pain: opioids: tolerance
can occur
Pain: opioids: assessments
made to avoid under-dosing, which can cause pain to become out of control and unmanageable
oxycodone
synthetic formulation long-acting opioid moderate to severe pain
oxycodone: S/E
lightheadedness dizziness sedation nausea constipation pruritus
oxycodone: pain relief ratio
similar to morphine possibility of less nausea
oxycodone: extended-release
cannot be cut or crushed for administration
oxycodone: use cautiously
hypothyroidism Addison disease urethral stricture prostatic hypertrophy lung or liver disease
hydromorphone: route
tablets liquid suppository parenteral formulations
hydromorphone: advantage
synthetic used for patients with morphine allergy
hydromorphone: helpful
when significant S/E have occured in past or pain has been inadquately controlled with other medications
hydromorphone: useful for controling
cough
hydromorphone: serious S/E
neurotoxicity may occur myoclonus: brief, involuntary twitching of a muscle hyperalgesia: increased sensitivity to pain seizures
hydromorphone: use cautiously
kidney disease prostatic hypertrophy urinary problems
hydromorphone: common side effects
dizziness lightheadedness drowsiness upset stomach if taken without food vomiting
Breakthrough pain: 3 types
Incident Pain Spontaneous Pain End-of-Dose Failure
Breakthrough pain: incident pain
tied to a specific event, such as dressing change or physical therapy
Breakthrough pain: incident pain: treatment
rapid-onset, short-acting analgesic just prior to painful event
Breakthrough pain: spontaneous pain
unpredictable and can’t be pinpointed to a relationship with any certain time or event no way to anticipate spontaneous pain
Breakthrough pain: spontaneous pain: neuropathic pain
adjuvant therapy may be useful
Breakthrough pain: spontaneous pain: treatment
rapid-onset, short acting analgesic is used
Breakthrough pain: end-of-dose failure
pain that specifically occurs at the end of a routine analgesic dosing cycle when medication blood levels begin to taper off
Breakthrough pain: end-of-dose failure: treatment
may indicate an increased dose tolerance and need for medication dose alterations
QUESTT pediatric pain assessment tool
Q = question U = use assessment tools E = evaluate S = secure T = take cause of pain into consideration T = take action to treat pain
QUESTT pediatric pain assessment tool: Q
question both the child an parent about the pain experience
QUESTT pediatric pain assessment tool: U
use assessment tools and rating scales that are appropriate to the developmental stage and situation and understanding of the child
QUESTT pediatric pain assessment tool: E
evaluate the patient for both behavioral and physiological changes
QUESTT pediatric pain assessment tool: S
secrue the parent’s participatoin in all stages of the pain evaluation and treatment process
QUESTT pediatric pain assessment tool: T
take the cause of the pain into consideration during the evaluation and choice of treatment methods
QUESTT pediatric pain assessment tool: T
take action to treat the pain appropriately, and then evaluate the results on a regular basis
ABCDE pain assessment
A = ask regularly B = believe patient C = choose appropriate pain control D = deliver pain relief E = empower patient
ABCDE pain assessment: A
ask regularly and consistently use same systematic approach every time pain is assessed
ABCDE pain assessment: B
believe patient’s report of pain and how it is best relieved
ABCDE pain assessment: C
Choose appropriate pain control options according to the needs of the patient, family and setting
ABCDE pain assessment: D
deliver pain relief in a timely, consistent and coordinated manner
ABCDE pain assessment: E
empower patient and family with information and an active voice in their care Care and pain relief should always be patient driven
Myoclonus: definition
presents as sudden, uncontrollable, nonrhythmic jerking of the extremities
Mycolonus: jerking
can be induced by tapping on the affected muscle group
Myoclonus: critical
early identification and rapid treatment
Myoclonus: for patient
can be exhausting
Myoclonus: can progress towards
severe neurological dysfunction seizures
Myoclonus: main cause
result of opioids given in high doses, particularly in patients with renal failure
Myoclonus: other causes
brain surgery intrathecal catheter placement AIDS dementia hypoxia
Nocturnal myoclonus: definition
nonrhythmic jerking of the extremities just prior to sleep
Nocturnal myoclonus: preceds
common preceds opioid-induced myoclonus
Myoclonus: treatment
opioid rotation use of adjuvants to reduce amount of opioid needed
Physical dependence: defiinition
condition of bodily adaptation to the presence of a specific drug or chemical
Physical dependence: removal of drug
or rapid reduction in dosage will result in withdrawal symptoms
Physical dependence: s/s
does not present with psychological and environmental dependence
Addiction: s/s
psychological and environmental dependence obsessive and irrational need or preoccupation with a substance unrestricted continued cravings compulsive and persistent use of a drug despite harmful experiences and S/E
Tolerance: defintion
adaptation of the body to continued exposure to a drug or chemical
Tolerance: effects of drug
at the same level of exposure are minimized over time
Tolerance: dosing
additional dosing is required to maintain the same outcomes
Pseudo-tolerance
misguided perception of health care provider that a patient’s need for increasing doses of a drug is due to the development of tolerance when in reality disease progression or other factors are responsible
Multidimensional tools for pain
Initial Pain Assessment Tool Brief Pain Inventory McGill Pain Questionnaire
Initial Pain Assessment Tool
specific to initial patient evaluation assesses characteristic of pain, patient’s manner of expressing pain, and effects of pain on quality of life
Initial Pain Assessment Tool: diagram
used to indicate pain locations and a scale rates pain intensity
Brief Pain Inventory
meant to quickly identify pain intensity and related restrictions series of questions about pain over 24 hours location, intensity, quality of life, type and patient’s response to treatments
McGill Pain Questionnaire
assesses pain on three levels identifying words selected by patient to describe their pain can be used with other tools both long and shotr forms
McGill Pain Questionnaire: three levels of assessment
sensory affective evaluative
nociceptors: definition
primary neurons, or sensory receptors,responding to stimulus in skin, muscle and joints, as well as stomach bladder and uterus.
nociceptors: neurons
specialized responses for: mechanical stimuli thermal stimuli chemical stimuli
nociceptors: neuron stimulation
result of direct tissue injury
nociceptors: 4 stages
transduction transmission modulation perceptoin
nociceptors: 4 stages: transduction
where a change occurs
nociceptors: 4 stages: transmission
where impulse is transferred along the neural path
nociceptors: 4 stages: modulation
or translation of signal
nociceptors: 4 stages:perception
perception of pain by patient
nociceptors: injury
nociceptors initiate process that begins depolarization of peripheral nerve
nociceptors: axons
A or C A carry pain messages faster thatn C mesage fast
nociceptors: message
passes along the neural pathway and creates a perception of pain
Schedule II drugs: disposal law
should be discarded by nurse or medical professional who is responsible for medication management at the time of death of a patient i
Schedule II drugs: time of medication waste
needs to occur as soon after the death as reasonable and needs to be witnessed and verified by a second qualified individual
Schedule II drugs: disposal: belong to
drugs have been paid for as part of patient’s care, so they do not belong to hospice of palliative care program
Schedule II drugs: disposal: pharmacy stock
can’t be returned to pharmacy stock because there is no guarantee medications have not been altered