Palliative Care Flashcards
What is the WHO pain ladder?
Step 1: Paracetamol
Step 2: Weak opioid e.g. codeine + paracetamol (co-codamol)
Step 3: Strong opioids e.g. morphine, diamorphine, fentanyl, oxycodone (imediate-oxynorm, slow release-oxycontin), alfentanil, methadone
What are the different strengths of codeine?
Weak = 8mg codeine + 500mg paracetamol Middle = 15mg codeine + 500mg paracetamol Strong = 30mg codeine + 500mg paracetamol (generally use this when progressing from step 1- unless elderly where lower dose may be better)
What is the initial dose of morphine for those on the maximum dose of weak opioids (co-codomol)?
-MST or Zomorph capsules 15-20mg BD is appropriate if on the full dose of weak opioids in step 2
(lower dose if elderly/frail/kidney problems)
What else must you prescribe if patients are on slow release morphine (e.g. Morphine Sulphate Tablets (MST/ Zomorph capsules)
How much should they be prescribed?
- All patients on modified release morphine should have normal release morphine (oromorph, sevredol) available p.r.n. for breakthrough pain.
- also prescribe a laxative and antiemetic for PRN (like the SABA inhaler)
the normal release morphine should be 1/6th of their total 24 hour morphine dose, e.g. a patient on MST 30 mg bd should have oramorph 10mg p.r.n. (because oromorph lasts 4 hours)
remember to prescribe PRN morphine as subcut AND oral
Explain bone pain.
What can be used to manage bone pain?
Bone pain:
- Dull ache over large area or localised
- Worse on movement/weight baring
Treatment for bone pain
- NSAIDS (e.g. diclofenac 50mg tds),
- Palliative radiotherapy
- IV Bisphosphonates (e.g. pamidronate infusion).
Describe neuropathic pain.
What can be used to manage neuropathic pain?
Neuropatic pain:
- Change in sensation-pins and needles/burning
- Assosiated factors-pallor and increase sweating
- Can be specific dermatomes
Treatment:
- Antidepressants (amitriptyline at night) -Anticonvulsants (gabapentin, pregablin)
- Compression of a nerve may be helped by corticosteroids
When should you use oxycodone over morphine?
Low eGFR
If morphine causing a lot of nausea and constipation
What are some side effects of strong opioids (e.g.morphine)?
Strong opioid side effects
- > 90% constipation - start them on laxative (co-danthramer or movicol)
- 30% nausea + vomiting - usually settles within few days (prescribe a p.r.n. antiemetic (e.g. haloperidol) so they have if needed)
- Drowsiness - should settle within 48 hours but if it doesn’t check that they don’t have impaired renal function; don’t drive when starting it or changing the dose
- Physical dependence (psychological addiction wont happen)
When are opioid patches appropriate to use?
If pain is stable (take a while to kick in)
If poorly compliant with oral medication
If patient has problems swallowing
Severe renal impairment
What are some non-pharmacological pain-management adjuvants?
Bio
• Transcutaneous electrical nerve stimulation (TENS)
• Heat therapy e.g. pads
• Palliative radiotherapy (e.g. bone pain)
• Palliative chemotherapy (masses compressing on nerves)
• Nerve block
•Surgery (intramedullary nail-pain from bone mets)
Psycho •CBT •Aromatherapy • Meditation •Distraction therapy •Self help
Social
•family support?
What can be given to relieve muscle spasms?
Baclofen
What are some treatments for non-reversible breathlessness?
Relaxation Hand-held fan Morphine Benzos -Lorazepam (sub lingual) -Midazolam (sub cut if cant tolerate)
How do you know someone is dying?
Why are these important to recognise?
Signs of dying (if all reversible causes have been considered and managed)
• Reduced oral intake
• Sleeping more
• Not taking medication (too weak to swallow)
•Profound weakness
• Confusion
• Terminal agitation
• Unresponsive
• Cheyne-Stoke respiration (fast then apnoeas)
• Increased secretions (death rattle)
-help by positioning and anti secretories
•Tachycardia, hypotensive and low peripheral perfusion
Important: stop unnecessary treatment and allow patient’s family to prepare
What are the 4 anticipatory medications?
- AXIOLYTICS- Midazolam
- ANTISECRETORY
- Hyoscine butylbromide (buscapan)-antisecretory and anti spasmodic or glycoporonim (anticholingergic) if hyoscine insufficient
(anti musc>block parasympathetic>stop secretions)
- ANTIEMETIC- Levomepromazine/haloperidol
- ANALGESIC- Morphine/oxycodone
- can also do ANTIPSYCHOTIC (haloperidol)
What are the 4 vomiting pathways?
(brain, balance, belly, botulinum)
- Cerebral (morning after-smells like alcohol)
- Toxic (too much alcohol in system)
- Gastric (downing a pint-vommiting)
- Vestibular (room spinning at home)
Explain features of vomiting via the gastric pathway.
Causes of gastric pathway vomiting?
Treatment for gastric pathway vomiting?
GASTRIC STASIS/IRRITATION VOMITING
Features
- Large vomits once or twice a day
- Minimal nausea between vomits
- Stasis: early satiety, epigastric fullness
- Irritation: hiccups, heartburn,
Causes
- gastritis (causes: radiotherapy, drugs-give PPI)
- gastric stasis (liver mets-hepatomegaly, drugs may cause dysmobility, obstruction by tumour)
Treatment- pro-kinetics so increase speed at which food exits the stomach
1. Metoclopramide 30 mins before meals (EPSE e.g. acute dystonic
reaction such as oculogyric crisis
2. Domperidone (fewer side effects and interactions)
Explain features of vomiting via the cerebral pathway.
Causes of cerebral pathway vomiting?
Treatment for cerebral pathway vomiting?
CEREBRAL VOMITING
Features
-signs of raised ICP (early morning headache, vomiting, may be little nausea)
-associated neurological symptoms/signs.
Causes
- primary brain tumour/brain mets
- raised ICP
- emotions (anticipatory/nervousness)
- radiotherapy
Treatment
- Raised ICP=Cyclizine and dexamethasone
- Anticipatory/nervousness=Benzodiazepines, CBT and complimentary therapies. could also give levomepromazine
Explain features of vomiting via the toxic pathway.
Causes of toxic pathway vomiting?
Treatment for toxic pathway vomiting?
TOXIC VOMITING Features -persistant intermittent nausea -small vommits (possets) -retching and lots of nausea
Causes
- drugs (opioids, digoxin, anti epileptics, chemo, RT, HT)
- electrolyte abnormalities (hypercalceamia/uremia)
- reduced clearance- bowel, kidney, liver problems
- infection (UTI/pneumonia)
Treatment
- HALOPERIDOL at night
- Cyclizine
- Levomepromazine
if its caused by chemo-give ONDANSETRON
What is the broad spectrum antiemetic?
Levomepromazine
What antiemetic is mostly used for nausea and vomiting related to chemotherapy toxicity?
Ondansetron is best for nausea and vomiting caused by chemo toxicity
What is the main side effect of ondansetron?
ondansetron causes constipation
What opiates are safest in severe chronic kidney disease/low eGFR?
Fentanyl or Buprenorphine - both undergo hepatic metabolism and are not excreted by the kidneys
-can also get both of these as patches
(can use oxycodone but with caution)
What type of drug is ondansetron?
5HT3 receptor antagonist (antiemetic)
What drug is used for the management of intractable hiccups?
Chlorpromazine
What are most suitable drugs for agitation and confusion (not terminal phase)?
First line: haloperidol
Others: chlorpromazine, levomepromazine
How is death confirmed by a doctor?
- Individual should be observed for a minimum of five minutes
- Absence of mechanical cardiac function is confirmed using a combination of:
- Absence of central pulse on palpation
- Absence of heart sounds on auscultation - After 5 minutes of continued cardio-respiratory arrest confirm the absence of:
- Pupillary responses to light
- Corneal reflexes
- Motor response to supra-orbital pressure
Who can complete a death certificate?
Completed by any doctor (can be F1) who attended the patient during their illness and has seen them within the last 14 days
What goes in sections 1 and 2 on the death certificate?
Section 1 = immediate, direct cause of death on line 1a then go back through the sequence of events/conditions that led to the death
Section 2 = significant comorbidities not contributing to the cause of death in section 1
What is a syringe driver?
What: A syringe driver is a portable, battery driven device which delivers continuous medication with a very fine needle under the skin SUBCUT
Why: your body might not be able to absorbs oral drugs or because of your swallow/vomiting
How long? Drugs delivered ober 24 hours, might take ¾ hours for effect. It is calculated so enough medicine will reach you
What are the indications for a syringe driver?
- Inability to swallow drugs due to reduced conscious level, often in the last few days of life
- Persistent nausea and vomiting
- Intestinal obstruction
- Malabsorption of drugs
Inadequate pain control is not an indication for syringe driver use unless there is reason to believe oral analgesics are not being absorbed.