PSA Flashcards
Rapid tranquilisation
IM lorazepam 2mg IV
or
IM haloperidol with IM promethazine
hypokalaemia treatment
treat the cause
oral or IV replacement
oral: SandoK 40-120mmol/day
IV: large vein man 20 mmol/hr
C. Diff treatment
1st: metronidazole
2nd/subseq.: vancomycin
arrhythmia stroke prevention
warfarin
non valvular: apixaban, dabigatran, edoxaban, rivaroxaban
hypoglycaemia treatment
conscious and able to swallow: 15-20g quick acting carb snack
conscious, uncooperative: glucose gel
unconscious: IV glucose
max IV K+
10 mmol/hour
adult fluid challenge
0.9% NaCl or Hartmann’s
no additives
infused over 10 mins
child fluid challenge
20 ml/kg
0.9% NaCl or Hartmanns
no additives
drugs eliminated by kidneys
CVS: atenolol, digoxin
neuro: opioids, gabapentin, lithium
infection: penicillins, aminogylcosides
other: LMWH, allopurinol, metformin
nephrotoxic drugs
NSAIDs
aminoglycosides
radiographic contrast
trimethoprim
hepatotoxic drugs
paracetamol
methotrexate
phenytoin
co-amoxiclav
drugs precipitating encephalopathy
sedative effects: opioids, bentos, TCAs
hypokalaemic effects: diuretics
constipating effects: antimuscarinics
drugs prescribed in micrograms
digoxin
levothyroxine
tamsulosin
inhaled bronchodilators
drugs prescribed in units
insulin
heparins
drugs prescribed weekly
bisphosphonates
methotrexate
drugs to stop before surgery
COCP and HRT: 4 weeks
lithium: day before
K+ sp. diuretics and ACEi: day of
oral hypoglycaemics: variable
obscure interactions
methotrexate and trimethoprim
SSRIs and antiplatelets/NSAIDs
serotonin syndrome signs
confusion agitation hyperthermia hyperreflexia clonus hypertonia
serotonin syndorme treament
withdraw serotonergic drugs
cooling and supportive care
benzodiazepines and required
drugs causing diarrhoea
antacids metoclopramide PPIs ranitidine digoxin metformin (usually transient) ACEi antibiotics SSRIs colchicine gliclazide mesalazine
drugs causing confusion
morphine sulphate
anticholinergics
antidepressants
anticonvulsants
drugs causing HYPOKALAEMIA
loop diuretics thiazide diuretics insulin acetazolamide theophylline prednisolone
drugs causing HYPERKALAEMIA
heparins ACEi tacrolimus aldosterone antagonists K+ sparing diuretics
drugs causing urinary retention
morphine sulphate anticholinergics general anaesthetics alpha-adrenoceptor agonists benzodiazepines NSAIDs CCBs antihistamines alcohol
drugs that prolong the QTc interval
antipsychotics macrolide abx anti fungal drugs anti arrhythmic drugs quinine methadone
drugs that cause HYPONATRAEMIA
loop diuretics thiazide diuretics carbamazepine desmopressin oxytocin SSRIs
drugs that cause HYPERNATRAEMIA
lots of saline
mannitol
lithium
drugs that cause constipation
antimuscarinics: hyoscine, oxybutynin, tolterodine, TCAs, antipsychotics
cations: iron salts, calcium salts, aluminium salts (antacids)
CCBs: verapamil
OPIOIDS
drugs that cause seizures
analgesics: opioids, LA, diclofenac, indomethacin, aspirin
Abx: isoniazid, mefloquine, metronidazole, betalactams
antidepressants: bupropion, tricyclics
antipsychotics: especially clozapine
bronchodilators: theophylline, aminophylline
nicotine replacement: bupropion, varenicline
acute asthma management
O - oxygen driven nebs
S - salbutamol 2.5-5mg neb
P - Prednisolone 50mg oral (or hydrocortisone if can’t have pred)
I - ipratropium bromide 500mcg neb
T - theophylline
M - magnesium sulphate 2g IV over 20 mins
E - escalate care (intubation and ventilation)
monitoring in acute asthma
pulse oximetry
ABG on admission and repeat as necessary
peak flow on initial assessment, before and after bronchodilator
pulmonary oedema management
IV furosemide 40-80mg bolus followed by infusion at 5-20 mg/hr if needed
IV GTN for patients with concomitant myocardial ischaemia, severe hypertension or regurgitant aortic or mitral disease
REVIEW MEDICATION: stop CCB and NSAIDs where possible
MI acute management
if STEMI on ECH and PCI available within 120 minutes: primary PCI
(if no: fibrinolysis transfer to primary PCI centre)
M - morphine 5-10 mg in 10ml slow IV
O - oxygen only if sats <94%
N - sublingual GTN 2 puffs if not hypotensive
A - aspirin 300mg PO loading lose then 75mg OD
T - ticagrelor 180mg PO loading dose and then 90mg BD
MI long term management
modify risk factors:
- smoking cessation
- treat co-morbidities –> DM, HTN, hyperlipidaemia
- cardiac rehab for graded exercise
- mental health awareness
optimise cardioprotective medications:
- anticoagulation: fondaparinux 2.5mg SC OF 3 days post primary PCI
- Beta-blockers: bisoprolol 2.5mg OD
- ACEi: ramipril 1.25mg
- statin: atorvastatin 80mg
acute COPD exacerbation management
O - oxygen 24-28% via venturi mask
S - salbutamol 2.5-5mg neb (AIR DRIVEN)
P - prednisolone PO 40mg daily for 7-14 days
I - ipratropium bromide 500mcg neb
T - theophylline
A - antibiotics: doxycycline PO 200mg STAT then 100mcg OD 5-7 days
COPD long term management
1st line: SABA or SAMA
if determined as likely to respond to steroids: LABA and ICS
if not: add a LABA and LAMA
GI bleed management
ABCDE approach
platelet transfusion if actively bleeding and plt <50
FFP if actively bleeding and PT or APT >1.5
prothrombin complex to those actively bleeding on warfarin
managing variceal bleeding
ABCDE
senior help early
TERLIPRESSIN 2mg IV followed by 1 or 2 mg every 4-6 hours
prophylaxis of variceal bleeding
propranolol: reduced rebreeding and mortality
endoscopic variceal band ligation (EVL)
ulcerative colitis management
MILD ATTACK:
- mesalazine 5-ASA
- given PR for distal, PO for more extensive
MODERATE ATTACK:
- induce remission with oral prednisolone 40mg/d for 1 weeks then taper by 5mg/week over 7 weeks
- maintain on 5-ASA
SEVERE ATTACK:
- if unwell and >6 motions/day, admit for: IV fluids, IV steroids, rectal steroids, VTE prophylaxis
- if not improving on day 3: rescue therapy with cyclosporin or infliximab
- involve surgery early in shared care
crohns management - inducing remission
- 1st presentation or single flare in 12 months: glucocorticosteroids (prednisolone, methylprednisolone, IV hydrocortisone
- consider BUDESONIDE in those with more distal disease or can’t tolerate conventional glucocorticoids
- consider adding AZATHIOPRINE or MERCAPTOPURINE to induce remission if: 2 or more flares in 12 months, steroid dose can’t be tapered
Crohn’s management - maintaining remission
- offer azathioprine or mercaptopurine as mono therapy to maintain remission
- consider methotrexate to maintain remission only in people who: needed methotrexate to induce remission or did not tolerate azathioprine or mercaptopurine
DKA management
ABCDE
Fluids: 1L 0.9% saline over 1h
Insulin: infusion at 0.1 unit/kg/hr (add 50 units of HSI to 50ml 0.9% NaCl)
Monitoring: check glucose and ketones hourly. check VBG at 2/4/8/12/24 hours
Catheter: if not passed urine by 1h. consider NG tube if vomiting or drowsy
Avoid hypoglycaemia: when glucose <14 start 10% glucose at 125ml/h to run alongside saline
K+ replacement: don’t add to first bag. thereafter add according to VBG result ( >5.5=nil, 2.5-5.5=40mmol, <3.5=seek ITU help)
UTI in pregnancy
Nitro 50mg QDS immediate release tablets for 7 days
avoid nitro in 3rd trimester
avoid trimeth in 1st trimester
shingles management
start within 72 hours of rash: ACICLOVIR 800mg PO 5 times a day for 7 days
immunocompromised: acyclovir 10mg/kg IV 8hrly 5 days
CAP management
CURB 0-1: doxycyline 200mg PO STAT then 100mg OD
CURB 2-5: benpen 1.2g IV 4 hourly + doxycycline 200mg PO STAT then 100mg OD
PE management
offer choice of LMWH or FONDAPARINUX
offer warfarin to patients with confirmed PE within 24 hours of diagnosis and continue for 3 months
offer warfarin beyond 3 months to patients with an unprovoked PE
delirium tremens
S+S: agitation, confusion, paranoia, visual and auditory hallucinations
ORAL LORAZEPAM 1st line treatment
wernicke’s encephalopathy
S+S: confusion, apathy, ocular palsies, nystagmus, ataxia
high risk patients: malnourished, decompensated liver disease
Mx: IV pabrinex in 50-100ml NaCl or dextrose 5% IV infusion over 30 minutes
prophylactic oral thiamine should also be given to harmful or dependent drinkers if they are in acute withdrawal, ro before and during assisted alcohol withdrawal
AF management
<48 hours: IV flecainide 1-2mg/kg over 10 mins
if HF or cut eischaemia: amiodarone 300mg bolus via large bore cannula
> 48 hours or uncertain: sort rate control beta-blocker or rate limiting CCB
T2DM hyperglycaemia management
1st line: metformin
if uncontrolled (HbA1c >58) add:
- DPP4 inhibitor
- sulphonylurea
- SGLT-2 inhibitors
- pioglitazone
T2DM cardiovascular risk management
control BP - ACEi first line
primary prevention: atorvastatin 20mg daily if 10 year CV risk is >10%
secondary prevention: atorvastatin 80mg daily, anti platelets
acne vulgaris management
- single topical: topical retinoids, benzoyl peroxide
- topical combination: topical abx, benzoyl peroxide, topical retinoid
- oral abc: tetracyclines (DOXYCYCLINE, in pregnancy use erythromycin)
- oral isotretinoin - SPECIALIST
isotretinoin side effects
teratogenicity dry skin/eyes/lips raised triglycerides hair thinning nose bleeding intracranial hypertension suicidal ideation photosensitivity
pt advice about anticoagulation
risks of accidental ingestion monitoring alcohol and good interacting drugs - esp NSAIDs tell dentist/doctors dabigatran capsules must be kept whole
pt advice about strong steroids
risks of accidental ingestion dependence and withdrawal symptoms/signs of toxicity MR tablets must be swallowed whole pregnancy and breastfeeding
pt advice about asthma
avoiding or managing triggers preventer vs reliever importance of using preventer signs of poor control asthma action plans
sick day rules in diabetes
keep taking insulin (adjust doses as needed)
keep well hydrated
keep eating
keep testing sugars
check for ketones
get help is can’t eat/drink anything, vomiting and ketones
pt advice about antiepileptics
alcohol, sleep, driving, safety
side effects: dizzy, tired, decreased concentration, SJS, agranulocytosis (CBZ)
interactions: enzyme effects, drugs that lower seizure threshold
brand switching
pregnancy and breastfeeding
significant SE of allopurinol
DERMATOLOGICAL:
severe cutaneous adverse reaction (SCAR)
DRESS
SJS