PSA Flashcards
drugs causing SIADH
sulfonyureas
SSRIs,
cyclophosphamide
carbamazepine
tricyclics
vincristine
SSCCTV
drugs usually prescribed weekly
bisphosphonates
methotrexate
aminophylline SE
lowering the seizure threshold
6 monthyl bloods for someone on lithium
u+es and fbc
what is a contraindicated to diltalezem
heart failure
Levofloxacin contraindicated
epilepsy as reduces the seizure threshold –> is a fluroquinone Abx
Flecanide contraindication
structural heart disease –> increased risk of arrhyhthmia
SE of steroids
S-stomach ulcers
T- thin skin
E-oEdema
R- right and left heart failure
O-osteoporsis
I-infection
D-diabetes
S- cushigns Syndrome
also sleep disturbance + psychosis
NSAIDs considerations w mnemonic
N- no urine (RENAL)
S- systolic dysfunction (heart failure)
A- Asthma
I - Indigestion
D-dyscrasia –> clotting abnormalities
avoid metoclopramide in
- parkinsons disease (its a dopamine antagonist and mya worsen Sx)
- Young women due to risk of dyskinesia
cyclizine is pretty much 1st choice antiemetic EXCEPT in
CARDIAC CASES –> can cause fluid retention
0.005% solution means what
5mg/ 1000ml
what does a 1% solution mean
1g / 100ml
scabies Tx
permethrin cream 5%
sulfonurea counselling
- low blood augars
- weight gain
names of rapid acting insulins
insulin aspart: NovoRapid
insulin lispro: Humalog
medications taken at night
statins and amytryptilline
why should aspirin not be taken by a breastfeeding mother
increases risk of Reyes syndrome in the child
Reyes syndrome
neurological disease that happens in children after a flu or virus (chicken pox most commonly) linked w increased incidence posure to aspriin
which class of medications can mask Sx of hypoglycaemia - causing reduced hypoglycaemic awareness
beta blockers e.g. atenolol
derm SE of lithium
worsens psoriasis
which class of Abx should you use with caution if penicillin allergy
cephalosporins ( about 0.5-6% of people w allergy to penicillin will also be allergic to these)
Chlorphenamine and Chlorpromazine differnece
chlorphenamine: antihistamine
chlorpromazine: antipsychotic
Carbimazole and Carbmazepine difference
carbimazole: antithyroid
carbmazepine: antiepileptic
PEAK AND THROUGH GENTAMIACIN
why should 5% glucose as maintenance fluids be avoided in someone who has had a stroke
increased risk of cerebral oedema
antipsychotic monitoring - Ix at beginning of Tx
FBC, U+Es, LFTs, lipids, weight, fasting glucose, prolactin,
blood pressure + ECG
why do you need U+Es when question digoxin level in digoxin toxcitiy
if pt hypokalaemic digoxin toxicity can occur AT A LOWER PLASMA DIGOXIN level
when do you need a steroid withdrawal plan
received more than 40mg prednisolone daily for more than one week
received more than 3 weeks treatment
recently received repeated courses
emergency surgery - drugs to stop w/o alternative
- antiplatelets
- anticoagulants
- contraceptive pills
emergency surgery - drugs to consider alternative for
- oral hypoglycaemics ( metformin needs to be stopped due to risk of lactic acidosis but do DM need insulin sliding scale?)
- insulins
drugs that shouldn’t be stopped before surgery
b blockers
CCBs
obvious things to check in preription r/vs
dose of paracetamol
dose of statins
daily vs weekly for osteoporosis and methotrexate
dose of aspirin - Tx vs prophylactic
dose of anticoag like enoxaparin - treatment for WHAT
in a drowsy pt
stop opiods
lithium rulse w surgery
should be stopped a day before
lithium excretion is dramatically reduced with (3) classes of drugs
ACE inhibitors
diuretics
NSAIDs
mild mod and sever lithium toxicity
mild = tremor
Mod = lethargy
severe = arrhythmias , seizures, coma, renal failure (=dialysis)
if you need to amend dose
by SMALLEST increment as a rule
often in BNF if unsure
fluid after aggressive fluid therapy for AKI when kidneys are working again
input needs to match output
so if peeing alot and not intaking much still will need alot of fluid to balance
if sodium is upper end of normal for fluid therapy hwhat should u. use
5% dextrose with or w/o K deepening on levels
diabetes with low GFR first line
gliclazide
BiPAP vs CPAP
BiPAP = type 2 resp failure
CPAP = type 1 resp failure