Random Flashcards
Acute treatment of Menieres disease
prochloperazine
prophylaxis in menieres disease
betahistine
drugs causing sensorineural hearing loss
gentamicin
chemotherapy
NSAIDs/aspirin (in overdose)
inheritance of otosclerosis
autosomal dominant
bilateral vestibular neuromas
neurofibromatosis type 2
virus closely associated with nasal carcinoma
epstein barr virus
naseptin is contraindicated in patients with what allergy
peanuts
drug for chronic hyperkalaemia in dialysis patients
calcium resonium
what is dusulepin
TCA
results of high dose dexamethasone suppression test in patients with cushing’s disease (pituitary adenoma)
ACTH = suppressed
Cortisol = suppressed
(high dose exerts negative feedback on the ACTH producing tumour cells)
when in the fundus palpable at the umbilicus
24 weeks
when is the fundus palpable at the xiphsternum
36 weeks
what is pulsus paradoxus seen in
cardiac tamponade
diagnosis of mycoplasma pneumoniae
serology
what type of diabetes insipidus does lithium cause
nephrogenic
what genetic condition is associated with Hirschsprung’s
Down’s syndrome
what is reduced in wilson’s disease
caeruloplasmin
what is CREST a subtype of
limited systemic sclerosis
moderate asthma attack (4)
PEFR 50-75% best or predicted
Speech normal
RR < 25 / min
Pulse < 110 bpm
severe asthma attack (4)
PEFR 33 - 50% best or predicted
Can’t complete sentences
RR > 25/min
Pulse > 110 bpm
life-threatening asthma attack (6)
PEFR < 33% best or predicted
Oxygen sats < 92%
‘Normal’ pC02 (4.6-6.0 kPa)
Silent chest, cyanosis or feeble respiratory effort
Bradycardia, dysrhythmia or hypotension
Exhaustion, confusion or coma
ANY OF THESE SIGNS MEANS THIS IS LIFE THREATENING ASTHMA ATTACK
1st line anticoagulant for APS
warfarin
screening test for haemochromatosis
transferrin saturation
antidote for dabigatran
idarucizumab
treatment of schistosomiasis
praziquantel
gram -ves (15)
pseudomonas
legionella
neisseria meningitidis
neisseria gonorrhoea
haemophilius influenzae
bordetella pertussis
e.coli
klebsiella
proteus
salmonella
e.coli 0157
shigella
campylobacter
helicobacter
bacteroides
gram +ves (16)
strep pneumoniae (a-haemolytic)
strep viridans (a-haemolytic)
GBS (e.g. strep pyogenes) (b-haemolytic)
GAS (b-haemolytic)
enterococcus (non-haemolytic)
staph aureus (coagulase positive)
staph epidermidis (coagulase negative)
diptheriodis
corynebacterium diptheriae
listeria monocytogenes
bacillus cereus
bacillus anthracis
anaerobic streptococci
clostridium difficile
clostridium tetani
clostridium perfingen
most common cause of mitral stenosis
rheumatic fever
how do you assess the plasma concentration of digoxin
digoxin concentrations should be measured within 8-12 hours of the last dose to assess for the plasma concentration
primary prevention dose of atorvastatin
20mg
secondary prevention dose atorvastatin
80mg
drugs that cause long-QT
A - anti-arrhythmics (amiodarone, sotalol, flecainide)
B - Antibiotics (fluoroquinolones, macrolides, aminoglycosides)
C - antipsychotics (haloperidol, quetiapine, risperidone)
D - Antidepressants (SSRIs, TCAs)
D - Diuretics
E - antiemetics (ondansetron)
non-pharmacological causes of long QT interval (7)
hypocalcaemia
hypokalaemia
hypomagnesaemia
myocarditis
myocardial infarction
SAH
hypothermia
recommended treatment for aortic stenosis
valve replacement
big toe dermatome
L5
medial malleolus dermatome
L4
lateral malleolus dermatome
S1
INR target for DVT/PE and AF treated with warfarin
2-3
INR target for recurrent DVT/PE and mechanical heart valves
3-4
how many days before surgery should warfarin be stopped
5 days
management of major bleed + warfarin
Stop warfarin
Give intravenous vitamin K 5mg
Prothrombin complex concentrate - if not available then FFP*
management of INR > 8.0, minor bleeding + warfarin
Stop warfarin
Give intravenous vitamin K 1-3mg
Repeat dose of vitamin K if INR still too high after 24 hours
Restart warfarin when INR < 5.0
management of INR > 8.0, no bleeding + warfarin
Stop warfarin
Give vitamin K 1-5mg by mouth, using the intravenous preparation orally
Repeat dose of vitamin K if INR still too high after 24 hours
Restart when INR < 5.0
management of INR 5.0-8.0, minor bleeding + warfarin
Stop warfarin
Give intravenous vitamin K 1-3mg
Restart when INR < 5.0
management of INR 5.0-8.0, minor bleeding + warfarin
Stop warfarin
Give intravenous vitamin K 1-3mg
Restart when INR < 5.0
management of INR 5.0-8.0, no bleeding + warfarin
Withhold 1 or 2 doses of warfarin
Reduce subsequent maintenance dose
most common parasite in HIV patients with diarrhoea
cryptosporidium
which way does the tongue deviate in hypoglossal nerve injury
towards the side of injury
non-sedating antihistamines
acrivastine
cetirizine
fexofenadine
loratadine
sedating antihistamines
chlorphenamine (Piriton)
cinnarizine
diphenhydramine
hydroxyzine
promethazine
what is given with methotrexate to reduce side effects
folic acid
what are porphyrias
group of disorders caused by genetic or acquired deficiencies in one of the enzymes in the metabolic pathway for haem
Haem precursors (porphyrins) accumulate and react with light to produce skin problems
enzyme affected in porphyria cutanea tarda
Decreased uroporphyrinogen decarboxylase in the liver
enzyme affected in erytrhopoetic protoporphyria
Deficiency in ferrochelatas
enzymes affected in acute intermittent porphyria
Deficiency in porphobilinogen deaminase
(no skin symptoms)
drugs causing Steven Johnstone syndrome
penicillin
sulphonamides
lamotrigine, carbamazepine, phenytoin
allopurinol
NSAIDs
oral contraceptive pill
opioids used in renal failure
oxycodone
if renal impairment is more severe, alfentanil, buprenorphine and fentanyl are preferred
what type of paediatric hernia should be surgically treated
inguinal
(umbilical usually resolve with time)
what drugs can be used to prevent pathological fractures in bone metastases
Bisphosphonates and denosumab
Causes pupillary dilatation in the Horner’s pupil
apraclonidine (alpha agonist)
Causes pupillary constriction in Adie’s pupil
pilocarpine
what is it called when one pupil is bigger than the other
anisocoria
Horner’s syndrome - anhydrosis determines site of lesion:
head, arm, trunk = central lesion:
just face = pre-ganglionic lesion:
absent = post-ganglionic lesion:
head, arm, trunk = central lesion: stroke, syringomyelia
just face = pre-ganglionic lesion: Pancoast’s, cervical rib
absent = post-ganglionic lesion: carotid artery
SSRI that most commonly causes prolonged QT
citalopram
management of orbital cellulitis
IV antibiotics and admit
symptomatic management in hyperthyroidism
propanolol
(e.g. in pregnancy induced thyroiditis)
calculation for urine osmolality
osmolality = 2 (Na+) + 2 (K+) + Glucose + Urea (all in mmol/L);
OR Calculated osmolality = 2 (Na+) + Glucose + Urea (all in mmol/L).