Pain & Palliative Flashcards
Which neurotransmitter is implicated in Migraine?
Calcitonin gene related peptide
Baclofen Activate?
GABA(b)
In normal resting condition Glutamate an excitatory neurotransmitter is inhibited by?
Magnesium
M/A of paracetamol includes?
1.central Cox inhibitor
2.Activate inhibitory Descending spinal pathway via serotonergic mechanism
3.Endocannaboid Reuptake inhibitor
4.Inhibits NO & TNF-alpha
M/A of TCA?
1.serotonin & NE reuptake inhibition at synapse in spinal cord
2.potential effect in Limbic system
3.reduce Na channel
M/A NSAID?
Inhibit Prostaglandin synthesis
M/A of opioids?
Opioid receptor agonist
& block ascending pain pathway
M/A ketamine?
1.NMDA antagonist
2.Reduction in central Pain sensitisation
M/A Capsaicin?
Activates TRPV-1 on subset of C fibre
M/A lidocaine?
Na channel blocker
Which opiod is safe at Renal impairment?
Buprenorphine
Fastest nerve fibre?
A alpha
Unmyelinated nerve fibre?
c fibre
What do you mean by allodynia?
Pain due to non painful stimuli like light touch
Negative sensory disturbances include?
Numbness
Tingiling(parasthesia)
Loss of temperature & sensitivity
What is formication?
Feeling of insect crawling over skin
1st line drugs for Neuropathic pain?
1.SNRI(Duloxetine)
2.TCA
3.Gabapentin and pregabalin
If 1st line drugs for neuropathic pain fails?
2nd line-
capsaicin patch,lidocaine patch,Tramadol…
Third line drugs for neuropathic pain?
Botulinum toxin,strong opioid
Strong recommended drugs for Neuropathy?
1st line
CRPS (complex regional pain syndrome) is diagnosed by?
BUDAPEST CRITERIA
Sensory,Motor,sudomotor,vasomotor
Palliative Care
The commonest barrier to assessment of palliative pain is?
Idiosyncratic shortcuts
Palliative Care
How you clinically assess pain in cancer patient?
EPAT(Edinburg Pain assessment and management Tool)
Simple screening question..In a scale of 0-10
Palliative Care
What is the mainstay treatment in cancer associated pain?
Pharmacological treatment
Palliative Care
Who analgesic ladder?
Step1- paracetamol/Nsaid
Step2-1+weak opioid
Step3-strong opioid
Palliative Care
Most commonly prescribe strong opoid?
Morphine
Palliative Care
Most effective and appropriate route for morphine?
Oral
Palliative Care
Effective morphine equivalent dose for cancer pain?
200mg/day
Palliative Care
Treatment of choice for pain due to bone metastasis?
Radiotherapy
Palliative Care
Drug of choice for pain arising from liver capsule?
Glucocorticoid
Palliative Care
Pain for raise ICP?
Glucocorticoid
Radiotherapy
Opioid
Palliative Care
Ishchemic pain?
Nsaid & ketamine
Palliative Care
Opioid related resistant constipation..Rx?
Opioid+Naloxone combinations
Palliative Care
To break opioid related nausea cycle?
IV haloperidol/levomepromazine
Palliative Care
In Opioid,which symptoms are beyond tolerance?
Dry mouth & constipation
Palliative Care
Indications of glucocorticoids in palliative care?
- Raised ICP
2.Liver capsule pain
3.Nerve compression
4.Soft tussue infiltration
Palliative Care
Treatment of choice for severe resistant neuropathic pain
Ketamine(NMDA antagonist) under specialist supervision.
Palliative Care
Following radiotherapy to releive pain in bone metastasis, pt develops transient flare of pain..Mx?
24-48 Hrs Dexamethasone
Palliative Care
Management of palliatiave Breathlessness?
Opioid both oral and parental are effective…If anxious,lorazepum may be given..
O2 has no role
Palliative Care
Persistent nonproductive cough in palliative care..treatment?
Opioid
Palliative Care
Productive/troublesome secretion..Rx?
Hyosine hydrobromide..Commonest A/E dry mouth
Palliative Care
In cancer patient which drug temporarily boost appetite?
Glucocorticoids
Antiemetic
Drugs act on CTZ
D2 antagonists
Haloperidol and Metoclopromide
CTZ is stimulated by drugs and toxins or metabolites..So this drugs are indicated
Antiemetic
Drugs act on vomiting center?
Anti H1,Ach
Cyclizine
Hyoscine
Levomepromazine
Motion sickness এ ভালো কাজ করে
Antiemetic
Gut distension stimulate which receptor?
Via vagus Histamin receptor H1
Antiemetic
Histamine receptor located in?
Vomiting centre and Gut
Antiemetic
Gut chemoreceptor?
5-HT
As chemorceptor it stimulates CTZ