SBA general revision Flashcards
causes of severely low platelets
ITP, DIC, TTP, haematologial malignancy, HUS
causes of modertely low platelets
HIT, drug-induced, EtOH, liver DZ, hypersplenism, viral infection, pregnancy, SLE/anti-PL S, B12 deficiency
in DIC the clots are made of
fibrin
before DIC the PT is
already ill with something else e.g. GNR bacteraemia, ITU, end stage liver DZ
DIC blood results
low platelets, low fibrinogen, high D-dimer, high PT, high PTT, high INR, blood film +ve for schistocytes (fragmented RBCs)
DIC management
treat underlying cause, give platelets, cryoprecipitate (to boost fibrinogen), FFP (for PT, PTT, INR), RBC for schistocytosis
fibrin clots in
DIC
PT already ill with something else e.g. GNR bacteraemia, ITU, end stage liver DZ then get low platelets is likely to be
DIC
low platelets, low fibrinogen, high D-dimer, high PT, high PTT, high INR, blood film +ve for schistocytes (fragmented RBCs) is typical of
DIC
TTP is
thrombotic thrombocytopaenic purpura
TTP clots are made of
hyaline
mneumonic to remember TTP presentation
FATRN
FATRN stands for
Fever, MAHA (microangiopathic heamolytic Anaemia), Thrombocytopaenia, Renal failure, Neuro symptoms
with TTP the PT is originally
well
TTP blood results
low platelets, +ve blood film for scistocytes
TTP management
exchange transfusion, don’t give platelets (makes it worse)
hyaline clots form in
TTP
FATRN is a way of remembering
PT presentation in TTP
a well PT who then develops low platelets may have
TTP
low platelets, +ve blood film for scistocytes are the blood results of
TTP
exchange transfusion, don’t give platelets (makes it worse) is the management of
TTP
asymptomatic, v low platelts (single digits), purpura, petechiae, bleeding from mucosal sites, ?post-recent infection describes the presentation of
ITP
ITP is
immune/idiopathic thrombocytopenia purpura
presentation of ITP
asymptomatic, v low platelts (single digits), purpura, petechiae, bleeding from mucosal sites, ?post-recent infection
ITP diagnosis
diagnosis of exclusion, increased bleeding time, N blood film
ITP management
platelets (rule out TTP first), corticosteroids (reverse immune cause), IVIG, splenectomy, monoclonal Ab
diagnosis of exclusion, increased bleeding time, N blood film
ITP
platelets (rule out TTP first), corticosteroids (reverse immune cause), IVIG, splenectomy, monoclonal Ab is the management of
ITP
HUS is
haemolytic uraemic syndrome
HUS pathophysiology
toxin-mediated haemolysis, destruction of platelets, recent infectio with E. coli (specific strain, bloody diarrhoea)
HUS PT
recent diarrhoea, renal failure
HUS bloods
low platelets, increased bleeding time, signs of kidney failure, blood film +ve for schistocytes
HUS management
supportive
toxin-mediated haemolysis, destruction of platelets, recent infectio with E. coli (specific strain, bloody diarrhoea) describes the pathophysiology of
HUS
recent diarrhoea, renal failure then drop in platelets may suggest
HUS
low platelets, increased bleeding time, signs of kidney failure, blood film +ve for schistocytes is typical of
HUS
HIT is
heparin-induced thrombocytopaenia
pathophysiology of HIT
Abs to heparin cross react with platelets leading to theinr destruction
PT with HIT is
in hospital for an unrelated reason, receiving heparin, sudden drop in platelets
HIT management
stop heparin, bridge with alternative anticoagulant
drug causes of low platelets
quinine, diuretics, sulphonamides, aspirin, thiazide
viral causes of low platelets
EBV, HIV, hepatitis
Abs to heparin cross react with platelets leading to theinr destruction describes teh pathophysiology of
HIT
in hospital for an unrelated reason, receiving heparin, sudden drop in platelets may suggest
HIT
stop heparin, bridge with alternative anticoagulant is the management of
HIT
counselling is
6-12 sessions based on an acute event e.g. berevement
DBT is
dialectical behavioural therapy = explores opposite positions and looks at how they might exist together
IPT is
interpersonal therapy = identify + address problems regarding relationships + interactions with others
psychodynamic psychotherapy is
exploring how your unconscious thoughts (i.e. past experience) might affect the way you act today
CBT is generally used in the management of
anxiety, depression, panic attacks, phobias, OCD, PTSD
DBT is generally used in the management of
personality disorders
family therapy is generally used in the management of
CAMHS, ED, DV, drug + alcohol abuse
IPT is generally used in the management of
depression
6-12 sessions based on an acute event e.g. berevement describes
counselling
exploring opposite positions and looks at how they might exist together describes
DBT
identifies + addresses problems regarding relationships + interactions with others describes
IPT
exploring how your unconscious thoughts (i.e. past experience) might affect the way you act today describes
psychodynamic psychotherapy
psychodynamic psychotherapy is used in the management of
depression, schizophrenia
talking therapy for anxiety, depression, panic attacks, phobias, CD, PTSD
CBT
talking therapy for schizophrenia, depression
psychodynamic psychotherapy
talking therapy for personality disorders
DPT
talking therapy for CAMHS, ED, DV, drug + alcohol abuse
family therapy
talking therapy for depression
IPT
HF features
SOB, pik frothy sputum, bibasal crackles, low O2 sats, S3, PND, peripheral oedema
HF diagnosis depends on
previous MI or not
to diagnse HF in PT with previous MI
ECHO w/i 2/52
to diagnose HF in PT w/o previous MI
- BNP
2. if BNP high ECHO w/i 2/52 if BNP low EECHO w/i 6/52
what is BNP
B-type natriuretic peptide = hormone produced by LV myocardium in respose to strain
BNP and prognosis in HF
the higher the BNP the worse the prognosis
factors that increase BNP
LVH, ischaemia, tachycardia, RV overload, hypoxaemia (inc PE), GFR <60, sepsis, DM, age >70, liver cirrhosis
factors that decrease BNP
obesity, diuretics, ACEi, B-blockers, ARB, aldosterone antagonists
SOB, pik frothy sputum, bibasal crackles, low O2 sats, S3, PND, peripheral oedema are features of
HF
ECHO w/i 2/52 in suspected HF for those who
have had a previous MI, or high BNP
ECHO w/i 6/52 in suspected HF for those who
have a low BNP
hormone produced by LV myocardium in respose to strain
BNP
NYHA classification is used to stratify
HF
NYHA class I
no symptoms
NYHA class II
mild symptoms, slight limitation of physical activity
NYHA class III
marked limitation in physical activity, comfortable at rest
NYHA class IV
severe symptoms even at rest
acute management of HF includes
O2, CPAP, diuretics, vasodilators, morphine, mechanical circulatory assistance
long term management of HF
- ACEi, B-blockers
- aldosterone antagonist (spiroolactone)/ARB (candesartan)/hydralazine with nitrates
- digoxin if concurrent AF
diuretics for fluid overload, but no evidence to suggest furosemide reduces mortality
NYHA classification of no symptoms
I
NYHA classification of mild symptoms, slight limitation of physical activity
II
NYHA classification of marked limitation in physical activity, comfortable at rest
III
NYHA classification of severe symptoms even at rest
IV
O2, CPAP, diuretics, vasodilators, morphine, mechanical circulatory assistance are used in the acute management of
HF
- ACEi, B-blockers
- aldosterone antagonist (spiroolactone)/ARB (candesartan)/hydralazine with nitrates
- digoxin if concurrent AF
is the guidance for management of
HF
causal agents of serotonin S
MAOi, SSRIs, ecstasy, amphetamines
features of serotonin S
hyperreflexia, myoclonus, rigidity, dilated pupils, tachycarida, hyperthermia, diaphoresis, altered mental state
management of serotonin S
stop offening drug, IV fluids, supportive, BZD
neuroleptic malignant S is causative agents
antipsychotics (typical and atypical)
neuroleptic malignant S features
males, w/i first 10/7 of starting/inreasing dose, pyrexia, hyporeflexia, rigidity, tachycardia, diaphoresis, raised ck
neuroleptic malignant S Mx
stop antipsychotic, IV fluids, BZD
serotonin S onset period
hours
neuroleptic malignant S onset period
hours - days
hyperreflexia, myoclonus, rigidity, dilated pupils, tachycarida, hyperthermia, diaphoresis, altered mental state are features of
serotonin S
males, w/i first 10/7 of starting/inreasing dose, pyrexia, hyporeflexia, rigidity, tachycardia, diaphoresis, raised ck are features of
neuroleptic malignant S
two types of stroke + % occurrence
ischaemin 85%, haemorrhagic 15%
subtypes of ischaemic stroke
thrombotic (from large vessels e.g. carotids), embolic (blood clot, air, fat, bacterial clump, AF)
subtypes of haemorrhagic stroke
intracerebral (w/i the brain), subarachnoid (on the surface of the brain)
rish factors for ischaemic stroke
age, HTN, smoking, hyperlipidaemia, DM, AF
risk factors for haemorrhagic stroke
age, HTN, AVM, anticoagulation therapy
stroke vs TIA
stroke symptoms last >24h, TIA <24h most <1h
Bamford/Oxford stroke classification
TACI, PACI, LACI, POCI
TACI is
total anterior circulation stroke affecting middle + ant cerebral a
TACI symptoms
ux hemiparesis +/ hemisensory loss of face, arm + leg, HH, higher cognitive dysfunction e.g. dysphasia
PACI is
partial ant circulatory stroke, involves the smaller a of the ant circulation e.g. upper/lower division of MCA
PACI features
2 of: ux hemiparesis +/ hemisensory loss of face, arm + leg, HH, higher cognitive dysfunction e.g. dysphasia
LACI is
lacunar infarct, involves perforating a around the internal capsule, thalamus and basal ganglia
LACI features
q of: ux weakness (+/ sensory deficit) of face + arm/arm + leg/all 3, pure sensory stroke, ataxic hemiplegia
POCI is
post circulation stroke, involves the vertebrobasilar a
POCI features
1 of: cerebellar/brainstem S, LOC, isolated HH
general symptom differences between haemorrhagic and ischaemic stroke
haemorrhagic > likely to have: reduces consciousness, headache, N, V, seizure
stroke Mx
- ABCDE
- urgent CT/MRI head
- thrombolysis if thrombotic + w/i 4.5hrs, aspirin 300mg, supportive
neurosurgical opinion if haemorrhagic, supportive, stop/reverse anticoagulants
TIA referral guidelines
crescendo TIA (i.e. multiple) admit + observation under specialist
TIA w/i 7/7 specialist assessment w/i 24h
TIA >7/7 ago specialist assessment w/i 7/7
location of stroke in amaurosis fugax
retinal/opthalmic a
AF post-stroke management
start warfarin 14/7 later
high cholesterol and stroke when to start statin
48h later
drug used for thrombolysis
altepase
secondary prevention of stroke management
clopidogrel 75mg lifelong
carotid a endarterectomy when stenosis
> 70%
TIA Mx
300mg aspirin
secondary prevention post-TIA Mx
clopidogrel 75mg lifelong
types of AF
paroxysmal (spontaneoulsy stops, lasts <7/7), persistent, permanent (cannot be cardioverted)
symptoms of AF
palpitiations, SOB, CP
AF management options
rate control: 1. B-blocker/rate limiting CaChB (diltiazem) 2. add B-blocker/diltiazem/digoxin
rhythm control aka cardioversion used in coexisting HF, first onset AF, or if reversible cause
risks of rhythm control in AF
highest risk of embolic stroke at point of cardioversion due to rhythm change
score to stratify stroke risk in AF
CHA2DS2VaS
CHA2DS2VaS and results
CHF, HTN, Age >75/>65, DM, Stroke/TIA, Vascular DZ, Sex (female)
0 = no R, 1 = consider in males, no Rx in females, 2 = offer anticoagulation
first line antiplatelets post NSTEMI
aspirin lifelong + clopidogrel/ticagrelor for 12/12
first line antiplatelet post STEMI
aspirin lifelong + clopidogrel/ticagrelor 1/12 if no/bare metal stent, 12/12 if drug-eluting stent
stroke affecting middle + ant cerebral a
TACI
ux hemiparesis +/ hemisensory loss of face, arm + leg, HH, higher cognitive dysfunction e.g. dysphasia are symptoms of
TACI
stroke involving the smaller a of the ant circulation e.g. upper/lower division of MCA
PACI
2 of: ux hemiparesis +/ hemisensory loss of face, arm + leg, HH, higher cognitive dysfunction e.g. dysphasia are features of
PACI
stroke involving perforating a around the internal capsule, thalamus and basal ganglia
LACI
1 of: ux weakness (+/ sensory deficit) of face + arm/arm + leg/all 3, pure sensory stroke, ataxic hemiplegia are features of a
LACI
stroke involving the vertebrobasilar a
POCI
1 of: cerebellar/brainstem S, LOC, isolated HH are features of
POCI
retinal/opthalmic a stroke causes
amaurosis fugax
altepase is the drug used in
thrombolysis
clopidogrel 75mg lifelong for
post-stroke and TIA
CHA2DS2VaS is used to
stratify risk of stroke in AF
aspirin lifelong + clopidogrel/ticagrelor for 12/12 for
post-NSTEMI
aspirin lifelong + clopidogrel/ticagrelor 1/12 if no/bare metal stent, 12/12 if drug-eluting stent
post-STEMI
risk factors for developing schizophrenia
(in order) FH, black Caribbean, migration, urban environment, cannabis
diagnostic criteria for schizophrenia
1/12 of: delusions of control (passivity phenomenon), thought disorder (insertion/withdrawal/broadcast), persistent delusions (paranoid, perception), hallucinations (3rd person auditory)
negative symptoms in schizophrenia
flat affect, anhedonia, alogia, avolition
general management of schizophrenia
PO antipsychotic + CBT
factors associated with poor prognosis in schizophrenia
male, strong FH, gradula onset, low IQ, premorbid Hx of social withdrawal, lack of obvious precipitant, no mood symptoms, initial poor response to Rx, young onset, predominantly -ve symptoms
AML is the most common
form of acute leukaemia in adults
features of AML
anaemia (pallor, lethargy), neutropaenia, thrombocytopenia (bleeding), splenomegaly, bone pain
CML is most commonly
associated with the Philadelphia ch (translocation -/- ch 9 + 22 leading to BCR-ABL)
CML presentation
anaemia (lethargy), weight loss, sweating, splenomegaly
ALL is the most common
childhood malignancy
features of ALL
anaemia (lethargy, pallor), neutropaenia (f/severe infections), thrombocytopaenia (easy bruising/petechiae), bone pain, splenomegaly, hepatomegaly, testicular swelling
CLL features
asymptomatic, anorexia, weight loss, bleeding, infections, lymphadenopathy
CLL on a blood film
smudge cells/smear cells
most common form of acute leukaemia in adults
AML
anaemia (pallor, lethargy), neutropaenia, thrombocytopenia (bleeding), splenomegaly, bone pain are features of
AML
associated with the Philadelphia ch (translocation -/- ch 9 + 22 leading to BCR-ABL)
CML
anaemia (lethargy), weight loss, sweating, splenomegaly are symptoms of
CML
most common childhood malignancy
ALL
anaemia (lethargy, pallor), neutropaenia (f/severe infections), thrombocytopaenia (easy bruising/petechiae), bone pain, splenomegaly, hepatomegaly, testicular swelling are features of
ALL
asymptomatic, anorexia, weight loss, bleeding, infections, lymphadenopathy are features of
CLL
smudge/smear cell on blood film suggests
CLL
tumour lysis S can occur in the Rx of
high grade lymphomas + leukaemia’s
tumour lysis S is usually triggered by
chemo
pathophysiology of tumour lysis S
breakdown of tumour cells and subsequent release of chemicals from the cell leading to high K + high PO4 + low Ca
tumour lyiss S presentas as
AKI + high PO4 + high uric acid
chemo in high grade lymphomas + leukaemia’s can trigger
tumour lysis S
hand foot and mouth DZ is caused by
coxsackie virus
clinical features of hand foot and mouth DZ
sore throat, fever, oral ulcers, vesicles on palms + soles
hand foot and mouth Mx
self limiting, hydration, analgesia
coxsackie virus causes
hand foot and mouth DZ
sore throat, fever, oral ulcers, vesicles on palms + soles are features of
hand foot and mouth DZ
immunisations for pertussis
2, 3, 4/12, preschool, pregnant women
bouts of coughing, worse at night/post-feed, V, central cyanosis, inspirtory whoop
whooping cough
pertussis Ix
per nasal swab culture, PCR, serology
pertussis Mx
PO macrolide (clarithromycin, azithromycin, erythromycin), 2/7 school exclusion
pertussis complications
subconjunctival haemorrhages, pneumonia, bronchiectasis, seizures
whooping courgh features
bouts of coughing, worse at night/post-feed, V, central cyanosis, inspirtory whoop
P450 inducers
phenytoin, carbamazepine, phenobarbitone, rifampicin, St John Wort, chronic EtOH intake, smoking
P450 inhibitors
ciprofloxacin, erythromycin, isoniazid, omeprazole, amiodarone, allopurinol, fluconazole, fluoxetine, sertraline, Na valproate, acute EtOH intake
Jarisch-Herxheimer reaction presentation
fever, rash, tachycardia
Jarisch-Herxheimer reaction occurs following
first dose ABx for syphilis
fever, rash, tachycardia post-first dose of ABx for syphilis
Jarisch-Herxheimer reaction
most common type of breast ca
invasive ductal carcinoma
breast ca risk factors
BRCA, 1st degree premenopausal relative, nuliparity, early menarche, late menopause, HRT, COCP, previous breast ca, not breastfeeding, ionising radiation, p53 gene mutations, obesity
breast ca screening f and ages
47-73, 3 yearly
4 main types of breast ca
invasive ductal carinoma (aka NST no special type), invasive lobar carcinoma, dudcal carcinoma in situ, lobar carcinoma in situ
tension headache presentation
recurrent, non-disabling, bx, tight band, not aggrevated by ADLs
cluster headache presentation
15min-2h duration, 1-2/d for 4-12/52, intense pain around eye, redness, lacrimation, lid swelling, limiting
temporal arteritis presentation
> 60 y.o., rapid onset ux headache, jaw claudication, tender palpable temporal a
medication overuse headache
> 15/7 per month, developed/wosened whilst taking medication (opoids, triptans)
migraine presentation
24-72h, ux, pulsating, aggrevated by ADLs, N/V, phono/photophobia
L ca types
small cell, non-small cell (squamous, adenocarcinoma, large cell)
small cell L ca features
central, ectopic ADH (hyponatraemia)/ACTH (Cushing’s S) secretion, poor prognosos (usually mets at presentation)
squamous cell L ca features
central, PTHrP secretion (hypercalcaemia), clubbing
adenocarcinoma features
peripheral, most common in non-smokers
large cell L ca features
peripheral, anaplastic, poorly differentiated, poor prognosis, B-hCG secretion
recurrent, non-disabling, bx, tight band, not aggrevated by ADLs are features of
tension headache
15min-2h duration, 1-2/d for 4-12/52, intense pain around eye, redness, lacrimation, lid swelling, limiting are features of
cluster headache
> 60 y.o., rapid onset ux headache, jaw claudication, tender palpable temporal a are features of
temporal arteritis
> 15/7 per month, developed/wosened whilst taking medication are symptoms of
medication overuse headache
24-72h, ux, pulsating, aggrevated by ADLs, N/V, phono/photophobia are symptoms of
migraine
central, ectopic ADH (hyponatraemia)/ACTH (Cushing’s S) secretion, poor prognosos (usually mets at presentation) are features of
small cell L ca
central, PTHrP secretion (hypercalcaemia), clubbing are features of
squamous cell L ca
peripheral, most common in non-smokers are features of
adenocarcinoma L ca
peripheral, anaplastic, poorly differentiated, poor prognosis, B-hCG secretion are features of
large cell L ca
causes of erythema nodosum
strep, TB, sarcoidosis, IBD, Bechet’s, ca/lymphoma, penicillin, COCP, pregnancy
sarcoidosis is characterised by
non-caseating granulomas
features of acute sarcoidosis
erythema nodosum, bx hilar lymphadenopathy, swinging fever, polyarthralgia
features of insidious sarcoidosis
SOB, non-productive cough malaise, weight loss
Ix in sarcoidosis
CXR, ACE level, Ca, ESR, spirometry, tissue biopsy
non-caseating granulomas is chracteristic of
sarcoidosis
erythema nodosum, bx hilar lymphadenopathy, swinging fever, polyarthralgia are features of
acute sarcoidosis
SOB, non-productive cough malaise, weight loss are features of
insidious sarcoidosis
intussusception features
paroxysmal abdo colic, draw knees up, pallor, V, blood stined stools (red current jelly), sausage shaped mass in RIF
intussusception Ix
US (target lesion)
intussusception Mx
reduction by air insufflation under radiological guidance
paroxysmal abdo colic, draw knees up, pallor, V, blood stined stools (red current jelly), sausage shaped mass in RIF are features of
intussusception
TORCH screen consists of
toxo, rubella, CMV, HSV, HIV
method of inheritance of tuberous sclerosis
AD
cutaneous features of tuberous sclerosis
depigmented ‘ash-leaf’ spots which fluoresce under UV, Shagreen patches, butterfly distribution adenoma sebaceum, subungual fibromata, cafe au lait spots
neurological features of tuberous sclerosis
developmental delay, epilepsy, intellectual impairment
neurofibramatosis features
axillary/groin freckles, pheochromocytoma, iris hamartomas (Lisch nodules)
depigmented ‘ash-leaf’ spots which fluoresce under UV, Shagreen patches, butterfly distribution adenoma sebaceum, subungual fibromata, cafe au lait spots are features of
cutaneous tuberous sclerosis
axillary/groin freckles, pheochromocytoma, iris hamartomas (Lisch nodules) are features of
neurofibramatosis
Shagreen patches are
patches of roughened skin over the lumbar spine
patches of roughened skin over the lumbar spine are called
Shagreen patches
bronchiolitis is caused by
RSV
bronchiolitis features
coryzal symptoms, dry cough, SOB, wheeze
croup is caused by
parainfluenza virus
croup features
barking cough, stridor, fever, coryzal symptoms
croup Mx
dexamethasone (0.15mg/kg), high flow O2, nebulised adrenaline
RSV causes
bronchiolitis
coryzal symptoms, dry cough, SOB, wheeze are features of
bronchiolitis
parainfluenza virus causes
croup
barking cough, stridor, fever, coryzal symptoms are features of
croup
ASD murmur
ejection systolic