YEAR 4 NOTES Flashcards
ecoli
gram negative rod (haemolytic uraemic syndrome)
staph
gram positive coccus
strep
gram positive coccus
neisseria
gram negative coccus
moraxella
gram negative coccus
Actinomycetes
gram positive rod
bacillus cereus / anthrax
gram positive rod
clostridium
gram positive rod
diphtheria
gram positive rod
Listeria
gram positive rod
pseudomonas
gram negative rod
h/influenzae
gram negative rod
salmonella
gram negative rod
shigella
gram negative rod
campylobacter
gram negative rod
Ca125
Ovarian cancer
Ca 19-9
Pancreatic
Ca15-3
Breast cancer
PSA
prostate carcinoma
Alpha fetoprotein
HCC / teratoma
Carcinoembryonic antigen CEA
Colorectal
S100
Melanoma / schwannoma
Bombesin
SCLC / gastric cancer / neruoblastoma
Raised h-bCG + raised AFP
Nonseminomas testicular cancer
Raised b-hCG and normal AFP
Seminoma testicular cancer
things that can raise a Ca 125
○ Cervical adenocarcinoma ○ Endometrial carcinoma ○ Fallopian tube cancer ○ Heart failure ○ Hypothyroidism ○ Liver cirrhosis with severe necrosis ○ Non-Hodgkin’s lymphoma ○Pleural effusion
Conns syndrome
Low K+ and Normal/ high Na+
Addisons
Hyperkalaemia metabolic acidosis
Cushing’s disease
Hypokalaemic metabolic alkalosis
Ix findings in SIADH
U+E = hyponatraemiaUrinary sodium / osmolaltiy will be HIGHSerum osmolality = LOWBUT EUOVOLEMIC –> normal BP + skin turgor etc
How slow should you replace sodium in SIADH and why
10 mmol/l per 24 hoursto prevent central pontine myelinolysis
SIADH causes mnemonic
S - surgeryI - intracranial –> infection (meningitis) / CVAA - Alveolar –> malignancy / pus (atypical pneu or TB)D - Drugs –> thiazide diuretics, carbamazepine, vincristine, cyclophosphamide, antipsychotics, SSRIs, NSAIDSsH - Head injury
FLuid restriction in SIADH
500-1000ml
Oxycodone generally causes compared to morphine
less sedation / vomiting / pruitus than morphine BUT more constipation
oral codeine to oral morphine conversion
divide by 10
oral tramadol to oral morphine conversion
divide by 10
oral morphine to oral oxycodone conversion
divide by 1.5 (to 2 but bnf says 1.5)
transdermal fetanyl 12 mcg patch equals
approx 30mg oral morphine daily
transdermal buprenoprhine 10 mcg patch equals
approx 24mg oral morphine daily
when increasing dose of opiods - next dose should be increased by
30-50%
for metastatic bone pain strong opiods PLUS
bisphopshonates / radio / denosumab may be used
breakthrough dose of morphine is
1/6th the daily dose
all pts prescribe dopioid should be coprescribed a
laxative
opioids in CKD
use w caution:- oxycodone preferred in palliative pts with mild-mod pain- if renal impairment severe , alfentanil / buprenorphine / fentanyl preffered
when prescribed an opioid if they get nausea
advise it is often transient –> if persists offer an antiemetic
when prescribed an opioid if they get nausea
advise it is often transient –> if persists offer an antiemetic
CAP in alcoholics
klebsiella –> (klepSTELLA)
most common cause of CAP
strep pneumoniae
CAP assoc w erythema multiforme / haemolytic anaemia / ITP and diagnosed by serology
Mycoplasma pneumonia
CAP assoc w lymphopenia and hyponatraemia, recently holdica (or AC units) and diagnosed by urinary antigen
Legionella pneumophila
how to work out anion gap
(Na + K) - (Cl + HCO3)
normal anion gap
10-18 mmol/L
Causes of normal anion gap mneumonic
HARDASS
HARDASS stands for
H- hyperalimentationA - AddisonsR- Renal tubular acidosisD - diarrhoeaA - AcetazolamideS - SpirinolactoneS- saline infusion
Mnemonic for raised anion gap metabolic acidosis
A CAT MUDPILES
A CAT MUDPILES
A- AspirinC - Cyanide, carbon monoxideA - Alcoholic ketoacidosisT - TolueneM - Methanol, metforminU - UraemiaD - Diabetic ketoacidosisP - Phenformin, pyroglutamic acid, paraldehyde, propylene glycol, paracetamolI - Iron, isoniazidL - Lactate (numerous causes)E - Ethanol, ethylene glycolS - Salicylates
alpha 1 agonist
decongestant e.g. phenylephrine / oxymetazoline
alpha 2 agonist
glaucoma Tx e.g. topical brimonidine
alpha antagonist
BPH - tamsulosinHTN - doxazosin
beta 1 agonists
inotropes e.g. dobutamine
beta 1 blockers
non selective + selective bblockers e..g atenolol / bisoprolol
beta 2 agonists
bronchodilators e.g. salbutamol
b 2 antagonists
nonselective bblockers e.g. propanolol / labetalol
dopamine agonists
parkinsons disease - ropiniroleprolactinoma
dopamine antagonists
antipsychotics - haloperidolantiemetics - metoclopramide / domperidone
GABA agonist
benzodiapines baclofen
GABA antagonists
flumazenil - reversal of benzos
histamine 1 antagonists
antihistamines e.g. loratidine
histamine 2 antagonists
antacids - ranitidine
muscarininc agonist
glaucoma e.g. pilocarpine
muscarinic antagonist
atropine - bradycardiabronchodilator - ipatroprium bromide / tiotropiumurge incontinence - oxybutinin
nicotonic agonist
nicotinevareniciline - used for smoking cessationdepolarising muscle relaxant = suxamethonium
nicotonic antagonist
nondepolarising muscle relaxants - atracurium
oxycotin agonist
inducing labour - syntocinon
oxycotin antagonist
tocolysis e.g. atosiban
serotinin agonist
triptans e.g. zolmitriptan
serotinin antagonists
antiemetics - ondasteron
MEN1 syndrome
the 3 Ps- parathyroid ( hyper due to parathyroid hyperplasia)- pituitary - pancreas –> insulinoma / gastrinoma
MEN1 genetics
MEN1 gene
most common presentation of MEN1
hypercalcaemia
MEN2a syndrome
Medullary thyroid cancer AND the 2Ps- parathyroid- phaechromocytoma
Men2b syndrome
Medullary thyrpoid cancer and 1 P- phaechromocytomas(+ marfanoid body habitus and neuromas)
MEN2a genetic component
RET oncogene
MEN2b genetic component
RET oncogene
genetics in Lynch syndrome
Mismatch repair gene defect - MHS1/2
FAP genetics
APC mutation
liver mets usually come from
colorectal cancer
SCLC is a
central lung cancer (not in apices)
type of lung cancer seen more often in nonsmokers
adenocarcinoma
pernicious anaemia predisposes to
gastric cancer
right sided murmur heard best on
inspiration
Left sided murmur heard best on
expiration
holo/pansystolic
mitral / tricuspid regurg (high pitched and blowing)VSD (harsh)
aortic stenosis
ejection systoliclouder on expiration
pulmonary stenosis
ejection systoliclouder on inspiration
late systolic
mitral valve prolapse
aortic regurg
early diastolic high-pitched and ‘blowing’ in character)
mitral stenosis
mid-late diastolicrumbling in character
.
learn it bitch xoxox
head bobbing is a sign of
aortic regurg
Mitral stenosis is typically caused by
rheumatic fever
acute relapse Mx
high dose steroids for 5 days to shorten course(don’t affect degree of recovery just length of flare)
Indications for DMARDs
- relapsing remitting disease + 2 relapses in past 2 years + ablte to walk 100m unaided- secondary progressive disease + 2 relapses in past 2 yrs + able to walk 10 (aided/unaided)
Natalizumab
- monoclonal antibody –> antagonises integrin on surface of leukocytes- inhibit migration of leucocytes across endothelium into blood brain barrier- used first line (best evidence base) - given IV
Ocrelizumab
- humanised antibody CD20 monoclonal antibody- often used first line too- given IV
fingolimod
- S1P receptor modulator- prevents lymphocytes leaving lymph nodes- oral forms available
Mx of fatigue
- amantadine- other options = mindfulness / CBT
Spaciticity Mx
- baclofen and gabapentin first line- physio is important
Bladder dysfunction Mx
- in form of urgency / incontinence / overflow- get USS to assess bladder emptying- if signic residual volume = intermittent self catheterization- if no signif residual volume = anticholinergics
HLA-B27
ankylosing spondylititsreactive arthritis
HLA-DQ2/8
coeliac disease
HLA-A3
haemochromatosiss
HLA-DR2
narcolepsygoodpastures syndrome
HLA-DR3
dermatitis herperitiformissjorgens syndromeprimary billiary cirrhosis
HLA-DR4
T1DMRA
Anti-Jo1
Polymyositis and dermatomyositis
Anti centromere
limited systemic sclerosis - aka CREST
Anti-Scl-70
diffuse systemic sclerosis
Anti-Ro
Sjorgens
Anti-RNA polymerase III
nonspecific for systemic sclerosis- more a marker of renal involvement