The calm before the storm (things I still can't remember) Flashcards
Dopamine agonists
Ropinirole
Pramipexole
Rotigotine
Ergot derived drugs
Pergolide
Cabergoline
Bromocriptine
SEs of ergot derived drugs
Cardiac valve fibrosis and other fibrotic syndromes
What smoothes levodopa response in parkinsons
COMTi, MAOI
What can improve neuropsych symptoms in parkinsons
Atypical neuroleptics, donepezil
What can you use in crises in parkinsons
Apomorphine (sc)
What is benzhexol’s role in parkinsons
younger patients with tremor (v limited)
What do you use for acute dystonia inc oculogyric crisis?
anticholinergics
What do you use for parkinsonian syndrome (neuroleptic side effect)?
Anticholinergics, dopamine agonists
What can you use for akathisia?
Beta blockers
What can you use for tardive dyskinesia?
Switch to atypical neuroleptic
What can you use for neuroleptic malignant syndrome?
Dantrolene, dopamine agonists (may last for 7+ days after drug stopped)
What is the side effect of vigabatrin?
Visual field defects
Which anti epileptics are strong enzyme inducers?
Carbamazepine, phenytoin
Which anti epileptics are weak enzyme inducers?
Oxcarbazepine, valproate, topiramate
Which anti epileptics are susceptible to action of other enzyme inducers/inhibitors?
Lamotrigine, tiagabine, zonisamide
For fatigue in MS give
Amantadine, modafinil
For pain in MS give
Amitriptyline, pregabalin, gabapentin
For spasticity in MS give
Baclofen, danrolene, diazepam, tizanidine, botox, physio
For bladder disturbance in MS give
Oxybutynin, tolterodine, catheter
For tremor in MS give
Clonazepam, primidone
Antimuscarinic antiemetic and when do you give it
Hyoscine, for motion sickness
Antihistamine antiemetic and when do you give it
Cinnarizine, cyclizine - motion sickness and vestibular disorders
DA antagonist antiemetic and when do you give it
Metoclopramide, domperidone - post op nausea
5-HT3 antagonist antiemetic and when do you give it
Ondansetron - chemo and post op
Steroid antiemetic and when do you give it
Dexamethasone - chemo
Cannabinoid antiemetic is
Nabolone
Problems with lithium?
Nephrogenic DI, tremor, ataxia, hypothyroid, renal tubular acidosis (type 1), interacts with diuretics, needs monitoring
What are some typical antipsychotics
Haloepridol, perchlorphenazine
What are some atypical antipsychotics
Clozapine, olanzapine, risperidone, aripiprazole
What’s the difference between 1st and 2nd gen antipsychotics
More extrapyramidal side effects with 1st gen. Weight gain, metabolic syndrome and diabetes with 2nd gen
SE of olanzapine
Cardiomyopathy
Medications associated with GORD
CCBs, nitrates, theophylline, bisphosphonates, steroids (including inhaled), NSAIDs, aspirin, clopidogrel
What’s the problem with using H2 receptor antagonists in GORD and what are the names of some
Ranitidine, famotidine, cimetidine; tachyphylaxis (reduction of efficacy in 2-6 weeks)
Which H2 receptor antagonist is a strong inhibitor of CYP450
Cimetidine
Standard H pylori eradication regimen
PPI twice daily (normally omeprazole 20mg)
Amox 1g BD
Clari 500mg BD (if recent use of macrolide use metronidazole 400mg TDS)
Standard H pylori eradication regimen if penicillin allergic
PPI + clari 500mg BD + metro 400mg BD
NSAID with lowest risk of GI toxicity
Ibuprofen
5-ASA rare but serious side effect
Blood dyscrasias
Do you need to monitor azathioprine?
Yes
Most significant adverse effect of anti TNFalpha drugs?
Immunosuppression
What is infliximab rarely associated with which is very serious?
Life threatening hypersensitivity - have resus equipment when administering it
What can you give for abode pain in IBS?
Low dose TCA, SSRIs (unlicensed), peppermint oil capsules
How do you treat osteoarthritis?
Paracetamol + topical NSAID
If ineffective consider NSAID (unless on low dose aspirin in which case consider mild opioid)
Intra articular corticosteroids
How do you choose an NSAID?
Ibuprofen first line because it has lowest incidence of GI toxicity. If history of cardio disease give naproxen first line instead.
Which DMARDs are associated with blood dyscrasias?
Methotrexate, sulfasalazine
What SE is specific to hyroxychloroquine
Ocular toxicity
SEs of allopurinol
Itch, rash
SEs of colchicine
Abdo cramps, diarrhoea
Examples of alkylating agents
cyclophosphamide, chlorambucil, busulfan
Examples of antimetabolite chemo drugs
5-flurouracil, methotrexate, gludarabine
Examples of cytotoxic antibiotics
Doxorubicin, bleomycin
Examples of vinca alkaloids
Vincristine, vinblastine
Examples of taxanes
Paclitaxel
Examples of TK inhibitors
Imatinib, nilotinib
Examples of immunomodular chemo
Thalidomide
Examples of endocrine modulators used as chemo
Tamoxifen, anastrozole, cyproterone
SEs of cyclophosphamide
Haemorrhagic cystitis, BM suppression, alopecia (MESNA reduces incidence of cystitis)
SEs of doxorubicin
Cardiomyopathy, BM suppression
SEs of bleomycin
pulmonary fibrosis
SEs of vincristine
Peripheral neuropathy
SEs of paclitaxel
Hypersensitivity, peripheral neuropathy
SEs of 5-FU
Mucositis
SE of ondansetron
Constipation, headache, dizziness
What kind of antiemetic do you usually use for platinum chemo regimens?
Neurokinin 1 antagonists e.g. aprepitant
What are the common SEs of aprepitant
Hiccups, constipation and diarrhoea
What are the adverse effects of nabilone?
Drowsiness, euphoria, visual disturbances
What do you use amifostine for?
Reduce neutropenia and nephrotoxicity associated with cisplatin; protection xerostomia during head/neck radiotherapy
What do you use G-CSF for in chemo?
Reducing neutropenia (not used routinely)
SE of G-CSF?
Prolonged use -> myeloid malignancy
What do you use rasburicase for in chemo?
Prevention and treatment of tumour lysis syndrome
What is rasburicas?
Recombinant enzyme which metabolises uric acid to allantoin
What are the SEs of rasburicase?
Fever and hypersensitivity reactions
How do you treat neutropenic sepsis?
Culture (2 sets) and tazocin
SEs of codeine?
Constipation, drowsiness and rash
What is a small but serious risk of tramadol?
Serotonin syndrome when combined with other CNS drugs
What is the normal starting dose of morphine?
20-30mg daily
Common SEs of morphine?
Constipation, nausea, vomiting, dry mouth
How do you prescribe breakthrough morphine?
1/6 total daily morphine requirement, if needing >2 doses in 24h then increase background amount
What’s the difference between oxycontin and oxynorm?
Oxycontin is sustained release, oxynorm is immediate release
Difference between oxycodone and morphine?
Oxycodone less constipating but can be more sedating
What do you have to be careful of with fentanyl?
x200 more potent. Significant risk of accidental overdose. Exposure to external heat significantly increases release from patch
Advantages of diamorphine?
Less nausea and hypotension
How do you convert PO morphine to IM or SC dose?
Half the dose
How do you convert oral morphine to syringe driver?
Divide by 3 for dose
What’s the first line for trigeminal neuralgia?
Carbamazepine
SEs of carbamazepine?
Sedation and anti muscarinic side effects
What are the anti muscarinic side effects?
Dry mouth, blurred vision, constipation, urinary retention
SEs of gabapentin, pregabalin?
Dizziness, fatigue, drowsiness, weight gain
Management of hypertensive emergency?
Nitroprusside (+ beta blocker), monitor intra arterial BP, reduce mean BP by 15-25% in first hour, not more
Antidote to aluminium
Desferrioxamine
Antidote to arsenic
Dimercaprol, succimer
Antidote to beta adrenoceptor blockers
atropine, glucagon
Antidote to CCBs
atropine
Antidote to carbamate insecticides
atropine
Antidote to copper
D-penicillamine, unithiol
Antidote to cyanide
dicobalt edentate, hydroxocobalamin, oxygen, sodium nitrite, sodium thiosulphate
Antidote to diethylene glycol
ethanol, fomepizole
Antidote to digoxin
atropine, digoxin antibodies
Antidote to hydrogen sulphide
oxygen
Antidote to lead
sodium calcium edentate, DMSA
Antidote to methaemoglobinaemia
methylthioninium chloride (methylene blue)
Antidote to mercury
unithiol
Antidote to nerve agents
atropine, HI-6, obidoxime, pralidoxime
Antidote to oleander
digoxin antibodies
Antidote to organophosphorus insecticides
atropine, obidoxime, pralidoxime
Antidote to thallium
prussian blue
Treatment of SVT
Vagal manoeuvre, if not adenosine, if not verapamil, if not cardiovert
Treatment of status
Lorazepam or diazepam 1st line, diazepam rectally or midazolam via buccal mucosa, phenytoin if not successful
Treatment of acute severe asthma
Oxygen Bronchodilators: salbutamol and ipratropium neb Steroids Consider continuous salbutamol Add magnesium Consider IV salbutamol or aminophylline ITU
What combination of rate control drugs can you not give in AF
Diltiazem and beta blocker
What do you give for AF rate control?
Beta blocker or diltiazem or verapamil +/- dixogin
Treatment of CCF?
ACEI or ARB core treatment
Diuretic (loop) generally needed
Add low dose beta blocker: carvedilol, bisoprolol, nebivolol not atenolol
Add spiro (eplerenone)
Add digoxin usually in AF, otherwise for symptom control only
Nitrates can improve some symptoms
Can be added to hydralazine
Management of stable angina?
Aspirin/clopidogrel and statin
GTN might be enough
Beta blockers most effective prevention, diltiazem/verapamil if contraindicated
All contraindicated in LV dysfunction
Add long acting nitrate (ISMN) to beta blocker or CCB
Can add dihydropyridine to beta blocker
Consider nicorandil, ivabradine (causes severe brady), ranolazine
If persists think again about revascularisation
What can you add for hypertension after A + C+ D?
further diuretic, alpha blocker, beta blocker
Which antihypertensives can you use in pregnancy?
Methyldopa, hydrazine, nifedipine, labetalol
SEs of statins
Rhabdo, renal toxicity, GI disturbance, sleep disturbance, erectile dysfunction
Thyroglossal cyst
Located in the anterior triangle, usually in the midline and below the hyoid (65% cases)
Derived from remnants of the thyroglossal duct
Thin walled and anechoic on USS (echogenicity suggests infection of cyst)
Branchial cyst
Six branchial arches separated by branchial clefts
Incomplete obliteration of the branchial apparatus may result in cysts, sinuses or fistulae
75% of branchial cysts originate from the second branchial cleft
Usually located anterior to the sternocleidomastoid near the angle of the mandible
Unless infected the fluid of the cyst has a similar consistency to water and is anechoic on USS
dermoid cyst
Derived from pleuripotent stem cells and are located in the midline
Most commonly in a suprahyoid location
They have heterogeneous appearances on imaging and contain variable amounts of calcium and fat
Cystic hygroma
Soft and transilluminates; most in posterior triangle
HbA1c target
6.0 if lifestyle only, 6.5 if lifestyle and metformin, 7.0 if any drug that might cause hypos
Vessel affected if Complete heart block following a MI?
Right coronary
Hypertension in diabetes, first line is
Ramipril regardless of age
pharm cardioversion in AF with structural heart disease
amiodarone (not flecainide)
What kind of BBB in ASDs?
Right
How does colorectal screening work
Faecal occult blood (FOB) test kits are sent every 2 years to all patients aged 60-74 years in England, 50-74 years in Scotland
Sensory loss in syringomyelia
spinothalamic sensory loss (pain and temperature)