Palliative CLASS PPT Flashcards

1
Q

What did Maureen want us to know most (the take aways)

—just to note this

A
  • Knowing how the drugs work
  • Knowing differences in extended release medications
  • Knowing that just because the pt is palliative, not necessarily palliating
  • Ensure MOST if filled out on chart (code status)

ON EXAM: Pay attention to off label use of medications!!!

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2
Q

PHYSIOLOGICAL CHANGES NEAR

END-OF-LIFE

A
Weakness/Fatigue 
Decreasing Appetite/Food Intake, Wasting 
Decreasing Fluid Intake, Dehydration
Decreasing Blood Perfusion, Renal Failure 
Neurological Dysfunction: 
	- Decreasing Level of Consciousness 	
	- Terminal Delirium 
	- Changes in Respiration 
	- Loss of Ability to Swallow
Loss of Sphincter Control 
Loss of Ability to Close Eyes
Changes in Medication Needs
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3
Q

What kind of breathing changes occur at end of life?

A

Cheyne-Stoke breathing

abnormal pattern of breathing characterized by progressively deeper and sometimes faster breathing, followed by a gradual decrease that results in a temporary stop in breathing called an apnea. The pattern repeats, with each cycle usually taking 30 seconds to 2 minutes.

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4
Q

Barriers to proper pain relief

A
  1. Health care prof: inadequate knowledge, poor assessment, concern re: regulation of controlled substances, fear of pt addiction (and self?), concern re:/inattention to side effects; concern about pt tolerance to analgesics
  2. Health care system: low priority, inadequate reimbursement, restrictive regulations re: controlled substances; problems of availability
  3. Pt: reluctance to report; concern re: distracting physician from tx of underlying disease, fear disease is worse, concern about not being good pt
  4. Reluctance: fear of addition/being thought addict, worries about s/e, concern re: tolerance
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5
Q

Principles Of Symptom Relief

A
Constant symptom requires constant tx
Do thorough assessment
Consider etiology
Remember Total Pain
Avoid unnecessary delay
Educate all involved
Individualize care
Consider adjuvants at all stages
Use oral route when possible
Evaluate frequently (titrate as necessary)
Remain in communication with patient and family
Treat other symptoms
Be flexible
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6
Q

What is “Total Pain”

A
inclusive of:
physical, emotional, spiritual, practical,
psychological, and social elements.
THE 7 P's of total pain:
        Physical pain					
	Intellectual pain
	Emotional pain
	Interpersonal pain
	Financial pain
	Spiritual pain
	Bureaucratic pain
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7
Q

What is a main concern for cancer patients?

A

PAIN!

Between 66 – 80 % of cancer patients in the advanced stage experience pain of moderate to severe degree

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8
Q

Pain Syndromes

what are the sources of pain for CA patients?

A

Direct tumor involvement

  • Invasion of bone
  • Involvement of nerves
  • -> Brachial plexus
  • -> Lumbosacral plexus
  • -> Epidural spinal cord compression
Involvement of viscera and ducts	
- Obstruction
- Abdomen
- Viscera
Involvement of blood vessels
Related to Cancer Therapy
- Post surgical pain
- Post chemotherapy pain:  Peripheral neuropathy, Mucosistis, Aseptic necrosis of bone
- Post radiation therapy pain

Related to Cancer induced Debility
	Constipation
	Decubitus ulcer
	Gastric distension
	Bladder spasm

Unrelated to Cancer: Arthritis, Angina, Osteoporosis, Migraine, etc

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9
Q

Outline the pyramid of obtaining effective pain control:

A

Etiology –> assessement –> principles –> analgesics –> adjuvents

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10
Q

What do PQRSTUV for pain stand for?

A
P - provoking/palliating
Q - Quality
R - Regions/radiating
S - Severity 
T - Treatment (past + present, effectiveness)
U - Understanding (of pt)
V - values (pt goals)
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11
Q

Outline the pain ladder (mild, moderate + severe pain management techniques)

A

1) Pain intensity that is mild can be treated with step 1 non-opioid drugs such as aspirin, NSAIDS, or acetaminophen and adjuvant drugs as indicated by the type of pain.
2) Pain intensity that is mild to moderate can be treated with opioids such as oxycodone or codeine combined with aspirin or acetaminophen and adjuvant drugs as indicated by the type of pain.
3) Pain intensity that is moderate to severe can be treated with strong opioids such as morphine, hydromorphone, or methadone.

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12
Q

What is the pain med administration method of choice?

A

Oral

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13
Q

Where are opioids conjugated + excreted?

A

Conjugated in liver

Excreted via kidney

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14
Q

Opioids

Peak plasma concentration time for oral, SC/IM and IV?

A

Oral – 1hr
SC/IM – 30 min
IV – 6 min

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15
Q

Opioid half life at steady state?

A

3 – 4 hours

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16
Q

Which pain meds are given immediate release?
Typically given how frequently?

How should adjustments for these meds be made if:

1) mild/moderate pain
2) severe/uncontrolled pain

A

codeine, morphine, hydromorphone, oxycodone
q4h

Adjust dose daily
Mild/moderate pain – increase 25 – 50 %
Severe/uncontrolled pain – 50 – 100%
Adjust more quickly for severe uncontrolled pain

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17
Q

How big is a BTD in relation to scheduled q4H dose of opioids?

A

1/2

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18
Q

Offer more BTD opioid AFTER _____

A

Peak has been reached (of previous dose)

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19
Q

How do you know if the regular (scheduled) dose of opioid needs to be upped?

A

If <3 BTDs per day no change in regular dose

If >3 BTDs per day then increase regular dose by the BTD amount

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20
Q

How will a new scheduled dose be calculated based on the opioid required in the day?

A

Add up the total amount given in past 24 hours including regular and BTDs

Divide total by 6 and give next regular dose by that amount

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21
Q

2 ways that opioids produce respiratory depression?

A

1) Pain is a potent stimulus to breath

2) Loss of consciousness precedes respiratory depression

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22
Q

What do you need to know to calculate how to switch between PO and SC doses?

A

SC dose is ½ of PO dose based on the immediate release form of the drug

Common ratio PO: IM/SC is 2:1, but some patients may be 3:1

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23
Q

Switching between immediate to sustained

A

Conversion is based on the total daily dose of immediate release and divided accordingly

(I assume this is the divide by 6? No sure…)

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24
Q

In the WHO recommendations for opioids, what is the recommendation for “by the clock”

What about “by the ladder”

A

analgesic medications for moderate to severe pain should be
given on a fixed dose schedule, not on an as needed basis.

analgesics given per the W.H.O three step ladder

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25
What should a physician consider when switching between opioids?
Due to incomplete cross-tolerance clinicians should consider reducing the dose by 20 to 25% when ordering and titrate from there depending on the clinical situation. Must be individualized – consult if necessary.
26
Equianalgesic doses need to be calculated when?
Equianalgesic doses need to be calculated when switching from one drug to another, when changing routes of administration or both An equianalgesic table should be used as a guide in dose calculation.
27
Is it ok to cut a fentyl patch to adjust dosing?
NO!
28
How potent is dilaudid in comparison to morphine?
7-10x
29
When giving a breakthrough dose, is it normal to use a different drug than is used for the sustained release?
No, Always look for a short acting form of same drug if possible for BTP
30
Examples of sustained release opioids?
Meslon, Oxycontin, Hydromorph Contin, Fentanyl patch
31
If pain is not well controlled by long acting opioids, what to do you do?
If pain not controlled, revert to short acting and re-titrate
32
Oral forms of long acting opioids and patches take ____ to reach steady state How to help pt with pain during this time if need be?
24 hours Give BTDs in first 12 hours if necessary
33
T/F Oral forms of long acting opioids cannot be crushed or chewed What about Meslon?
T Meslon can be opened and sprinkled on food but cannot be put down NG tubes
34
``` Fentanyl Patches What is fentanyl? Does it cause histamine release? How does the patch work? A pro of this medication? ```
``` A synthetic opioid Doesn’t release histamine Lipophilic and high bioavailability Forms subcutaneous pool Less likely to cause nausea/constipation ```
35
Which opioid is not recommended?
Demerol (Meperidine)
36
What is done in management of bone pain?
``` Opioids NSAIDs Corticosteroids Bisphosphonates Calcitonin Radiation External bracing ```
37
Symptoms of bone pain? What causes it? What do you need to rule out?
Constant, worse with movement Mets, compression or pathologic fractures Prostaglandins from inflammation, mets Rule out cord compression
38
What is an off label use for gabapentin? is it a helpful drug for most people? When stopping this med...?
Neuropathic pain Gabapentin only helpful in 15% of population but tends to work really well in those it does. Don’t stop abruptly!
39
What meds are used for neuropathic pain?
Tricyclic antidepressants Gabapentin Methadone SSRIs usually not useful
40
Non-pharmacological Treatments of neuropathic pain?
``` Cutaneous stimulation Distraction Relaxation Positioning Companioning Bearing witness ```
41
How common is dyspnea?
60% of patients with terminal cancer, ALS, or end stage lung and heart disease will experience some degree of dyspnea, especially during last 6 weeks of life.
42
How do you treat dyspnea?
``` Treat the cause if possible Obstruction: Radiation/Chemotherapy/Meds Pleural effusion: Thoracentesis Ascites: Abdominal paracentesis Antibiotics: Pneumonia Anemia: Transfusion ``` ``` Bronchodilators (for bronchospasm) Diuretics Steroids Anti-anxiety medications Neuroleptics, esp if dying (CPZ, Nozinan) Tranquilizers if the above do not settle Cough suppressants Oxygen ```
43
WHy must you use O2 judiciously at EOL?
IT will prolong life...need to make sure this is what they want!
44
Nozanin aka? (nick name by Maureen)
Snoozanan
45
Which two meds have off label use at antiemetics?
Haldol + dexamethazone
46
What is the #1 med for dyspnea?
Opioids! Decreases the sense of breathlessness Decreases sensitivity to CO2 If on an opioid for pain control adding or increasing the dose my be sufficient to relieve air hunger. Doses may need to be increased by as much as 200% or a little as 25% in mild dyspnea.
47
Is O2 used at EOL?
Early in disease process | Not in last hours of dying (unless pt panicking and finds it comforting
48
Prevention of dyspnea?
No perfumes Avoid triggers such as smoke, smells, memories, anxiety Limit number of people in the room Encourage fresh air with an open window or fan
49
Comfort measures during acute episodes of dyspnea?
``` Positioning Elevate HOB Recliner Pillows under arms to expand chest Loosen clothing Touch, support, information ```
50
Qualities of thirst at end of life
More common than hunger not related to dehydration and unrelieved by artificial hydration (AH)
51
Causes of anorexia + cachexia at EOL?
caused by metabolic disturbance of Ca – loss of protein
52
Most common physical reasons for initiating Artificial Hydration are...
to treat delirium caused by opioid toxicity and hypercalcemia
53
Three psychosocial processes families engage in at EOL:
Fighting back - The knowledge that reduced intake is normal for someone who is dying is in direct conflict with a family’s desperate attempt to prevent Letting nature take it’s course - Understand that no amount of nutrition of fluids with prevent the patient from dying Waffling -  Go between accepting approaching death and wanting to keep fighting Some care givers fit in here as well
54
Benefits of dehydration | at EOL?
Natural anaesthetic effect, reduction in resp secretions, decreased GI fluid, reduced urine output
55
Risk of overhydration at EOL?
Edema, ascites, resp congestion and distress, diarrhea, nausea, pain
56
T/D Artifical hydration is beneficial at EOL.
 No evidence that AH prolongs or increases quality of life
57
What neurological changes occur when pt is near death?
``` Hypoxemia Metabolic imbalance Acidosis Toxin accumulation due to liver and renal failure Adverse effects of medication Sepsis Disease-related factors Reduced cerebral perfusion ```
58
3 overall strategies for Tx of neurologial changes?
Intent to Relieve by Reversal Intent to Relieve by Sedation Intent to Observe Delirium
59
Relieve by Reversal - what does this entail? | When is it done?
In this approach, there is some likelihood of reversing delirium, particularly where the patient has a higher functional status. Criteria for this include: Known patient wish for intervention where possible, even if chances are low If readily reversible If potentially reversible e.g. opioid neurotoxicity If not dying, i.e. earlier stages If dying, trial attempts – only if patient had wanted active treatments and reverse is likely; otherwise no.  
60
Relieve by Sedation | WHen is this used?
Reversal may be unrealistic or unwanted. Latimer(46) used the term ‘sedation as therapy’ in recognizing that the goal may be reduction of severity of delirium via use of sedative medication. Criteria for this approach include: * If delirium unpleasant and/or worsening * If patient did not want active treatment * If treatment is futile or unlikely to improve delirium * If conditions are unsafe for patient, family or staff e.g. wild agitation, violence  
61
When will neurologicalchanges/delirium be treated with "Intent to Observe Delirium"
There are occasional times when, in known imminently dying patients, the patient develops hallucinations, visions or physical movements which appear comforting, or at least not disturbing, and possibly have interpretable meaning to family. In these cases, it may be prudent to observe the patient, provide support to family, but be prepared to initiate sedative therapy if circumstances change to agitation.
62
What is an excellent way to reduce family distress at EOL?
Plan ahead! * The last hours of life are the time when they most want to communicate with their loved one (but may be less able to do this as pt becomes less present) * As many clinicians have observed, the degree of family distress seems to be inversely related to the extent to which advance planning and preparation occurred * Time spent preparing families is likely to be very worthwhile
63
How to treat an unconcscious patient....do we assume they can hear?
experience suggests that at times their awareness may be greater than their ability to respond •Given our inability to assess dying patient’s comprehension and the distress that talking "over" the patient may cause, it is prudent to presume that the unconscious patient hears everything •Advise families and professional caregivers to talk to the patient as if he or she was conscious
64
What two classifications of drugs may be used to aid with neurological changes at EOL (delirium, etc)?
Neuroleptics Anxiolytics
65
What is the MOST suitalbe drug therapy for tx of patients with delirium at EOL?
Haloperidol (haldol) is generally considered the gold standard
66
Is haldol short or long acting? Possible routes for admin? Doses?
It is a longer acting drug(48) can be given PO, SC, IM or IV. In delirium, a suggested regimen is 0.5–1.5mg PO (mild), 1.5– 5.0mg PO (severe) or 10mg SC or IV (very severe) [one report of up to 250mg/24hr.
67
3 neuroleptics used at EOL??
Haldol Chlorpromazine Methotrimeprizaine
68
When might chlorpromazine be used?
may be an acceptable alternative to haldol if a small risk of slight cognitive impairment is not a concern.
69
Methotrimeprazine
is effective and used as an alternative to haloperidol(66,67). It is a higher sedation drug at doses of 15mg or above. It can be given PO, SC, IV as well as SL. Very low doses are used for nausea (0.5–2.5mg) but control of delirium usually requires 10–15mg for mild and up to 50mg for severe delirium. These may be given q4–8h initially, then less often once controlled
70
Are benzos used for delirium? Who requires particular caution when using these?
do not clear the sensorium or improve cognition, and should not be used for delirium unless as an adjunct to primary therapy with haloperidol or anther neuroleptic. Particular caution should be used in the elderly or those with hepatic failure.
71
What anxiolytics are used for EOL delirium?
Lorazepam Midazolam Propofol Phenobarbital
72
When is lorazepam used for delirium at EOL?
Lorazepam alone appears to be ineffective and is in fact associated with treatment-limiting adverse effects, but in combination may provide quicker and more effective control. In mild cases of delirium, it should be avoided as noted above or used on a PRN only basis for agitation until the neuroleptic provides overall control, especially if the goal is reversal of delirium.
73
Midazolam Is it used often? What is it helpful for? Does it act rapidly?
is also frequently used in delirium, but is more helpful for the restlessness aspect. In acute dosing, it is short-acting and rapidly effective.
74
What is propofol?
Short-acting anesthetic
75
When is phenobarbital used?
may be helpful or in combination if midazolam fails to provide adequate sedation in refractory cases.
76
How common is nausea + vomitting at EOL?
Occurs intermittently in 60% of terminally ill cancer patients 40% in patients during last week of life Occur in up to 60% of patients receiving opioids, particularly at the initiation of therapy
77
How should you respond to nausea at EOL?
Often multi-faceted – ongoing assessment critical - Ongoing assessment and trial of drugs – if it is not working change the regime
78
Nausea aggravated by movement (from degrees of turning of head to motion sickness) indicating....?
a vestibular component.
79
Nausea and vomiting associated with anxiety indicating a ____?
cortical component.
80
Intermittent nausea with early satiety, postprandial fullness or bloating. Nausea is relieved with vomiting small amounts of undigested food indicating
impaired gastric emptying.
81
Intermittent nausea associated with cramping and altered bowel habit. Nausea relieved with large emesis sometimes bilious/feculent indicating
obstruction.
82
Persistent nausea aggravated by sight/smell of food, unrelieved by vomiting indicating
chemical cause.
83
Early morning nausea and/or vomiting associated with head ache indicating
increased intracranial pressure
84
Causes of nausea that act on CTZ?
``` drugs - opioids - chemoTx etc... biochemical ­ - Ca++ - renal failure - liver failure sepsis radiotherapy ```
85
Vestibular causes of nausea/
tumor | opioids (not CTZ??)
86
Cortical causes of nausea?
- anxiety - association ­- ICP
87
"Peripheral" causes of nausea?
``` radiotherapy chemotherapy GI irritation inflammation obstruction paresis compression ```
88
REVIEW SLIDE 78 - Different causes of nausea + paths they act on
x
89
Pharmaceutical tx of nausea?
1) Neuroleptics - Stemetil, Haldol, Nozinan, CPZ, Loxapine, Olanzapine ``` 2) Antihistamines Gravol 3) Anticholinergics Scopolamine Atropine 4) Steroids Dexamethasone 5) Anxiolytics 6) 5-HT antagonists Ondansetron ```
90
Tips for decreasing nausea?
Avoid spicy, fatty and salty foods, or ones with strong odours Avoid mixing liquids and solids. Use small frequent, bland meals when hungry. Drinking cool, fizzy drinks. Avoid lying flat after eating.