Active Recall Flashcards
Auto-Antibodies [2]
Rheumatoid Arthritis
Anti-CCP [70-80%]
Rheumatoid Factor [Low specificity]
Auto-Antibodies [6]
Systemic Lupus Erythematosus (SLE)
Anti-dsDNA [Renal involvement]
Anti-Smith [20%]
Anti-Histone [Drug-induced SLE]
Anti-Nuclear (ANA) [Low specificity]
Anti-Ro [Neonatal heart block]
Anti-U1-RNP
Auto-Antibodies [2]
Sjogren’s Syndrome
Anti-Ro (Anti-SSA)
Anti-La (Anti-SSB)
Auto-Antibodies [1]
Mixed Connective Tissue Disease (MCTD)
Anti-U1-RNP
Auto-Antibodies [6]
Systemic Sclerosis (CREST Syndrome)
Anti-Scl-70 [Worse prognosis]
Anti-Topoisomerase
Anti-Centromere [Limited cutaneous]
Anti-RNA Polymerase III [Diffuse cutaneous]
Anti-Fibrillin [Fibrosis, myositis]
Anti-Nuclear (ANA) [Low specificity]
Auto-Antibodies [2]
Dermatomyositis
Anti-Jo1
Anti-Mi-2
Auto-Antibodies [1]
Wegener’s Granulomatosis with Polyangiitis (GPA)
cANCA (Anti-PR3)
Auto-Antibodies [1]
Churg-Strauss Eosinophilic Granulomatosis with Polyangiitis (EGPA)
pANCA (Anti-MPO)
Auto-Antibodies [1]
Lambert-Eaton Myasthenic Syndrome (LEMS)
Anti-VGCC
Auto-Antibodies [2]
Autoimmune Hepatitis
Anti-Smooth Muscle
Anti-LKM-1
Auto-Antibodies [1]
Primary Biliary Cholangitis (PBC)
Anti-Mitochondrial (AMA)
Auto-Antibodies [1]
Primary Sclerosing Cholangitis (PSC)
cANCA (Anti-PR3)
Auto-Antibodies [2]
Graves’ Disease
TRAb (Anti-TSHR)
Anti-TPO [But more common in Hashimoto’s Thyroiditis]
Auto-Antibodies [3]
Coeliac Disease
Anti-EMA
Anti-TTG
Anti-Gliadin
Auto-Antibodies [1]
Goodpasture’s Syndrome
Anti-GBM
Auto-Antibodies [2]
Pernicious Anaemia
Anti-Parietal Cell
Anti-Intrinsic Factor
Auto-Antibodies [2]
Myasthenia Gravis
Anti-AChR
Anti-MUSK
Auto-Antibodies [4]
Anti-Phospholipid Syndrome (APS)
Anti-Cardiolipin
Anti-β2 Glycoproptein
Lupus Anticoagulant (LAC)
Anti-Phospholipid
HLA Associations [1]
HLA-DQ2, HLA-DQ8
Coeliac Disease
HLA Associations [4]
HLA-B27
Ankylosing Spondylitis
Inflammatory Bowel Disease (IBD)
Seronegative Arthritis
Psoriasis
Gene Mutation [2]
Haemochromatosis
HFE Gene
C282Y Mutation
HLA Associations [1]
HLA-DRW4
Felty Syndrome
HLA Associations [1]
HLA-B51
Behçet’s Syndrome
HLA Associations [1]
HLA-B*1502
Stevens-Johnson Syndrome (SJS)
Gene Mutation [2]
Autosomal-Dominant Polycystic Kidney Disease (ADPKD)
PKD-1 [ADPKD Type 1]
PKD-2 [ADPKD Type 2]
Gene Mutation [3]
Alport Syndrome
COL4A3
COL4A4
COL4A5
Gene Mutation [2]
Maturity-Onset Diabetes of the Young (MODY)
HNF-1 α [MODY3]
HNF-1 β [MODY5]
Tumour Markers [1]
Prostate Cancer
PSA
Tumour Markers [3]
Testicular Cancer
β-HCG [Seminoma]
AFP [Non-seminoma]
LDH [Non-seminoma]
Tumour Markers [1]
Hepatocellular Cancer
AFP
Tumour Markers [1]
Ovarian Cancer
CA-125
Tumour Markers [1]
Pancreatic Cancer
CA-19-9
Tumour Markers [1]
Breast Cancer
CA-15-3
Tumour Markers [1]
Colorectal Cancer
CEA
Statistics
Chi-Square Test
Compare binary outcomes
Example: Testing a new cardiac stent
Is there re-stenosis 1 year later?
Either “Yes” or “No”
Statistics
Paired T-Test
Used when a group has been measured twice (eg each individual has two repeated measures)
Assumes normal distribution
Example: Compares the BP of a group of patients before and after they take a new anti-HTN drug
Statistics
Unpaired Student’s T-Test
Tests the hypothesis that there is no difference between the mean of two samples
Example: Comparing the mean bowel transit time in two groups of patients given different types of bowel prep
Statistics
Analysis of Variance (ANOVA) Test
Tells you if the dependent variable changes according to the level of the independent variable.
Example: Your independent variable is social media use, and you assign groups to low, medium, and high levels of social media use to find out if there is a difference in hours of sleep per night.
Statistics
Kruskal-Wallis Test
Used when there is one nominal variable and one measurement variable, but data is not normally distributed
Example: You want to find out how test anxiety affects actual test scores. The independent variable “test anxiety” has three levels: no anxiety, low-medium anxiety and high anxiety. The dependent variable is the exam score, rated from 0 to 100%.
Statistics
Wilcoxon Rank-Sum Test
(aka Mann-Whitney U-Test)
Used when a group has been measured twice (eg each individual has two repeated measures), but data is NOT normally distributed
Essentially Paired T-Test but for ordinal data rather than continuous data
Example: Do salaries (continuous scale) differ based on educational level (ordinal, “high school” vs “university”)?
Statistics
Pearson Correlation Coefficient
Looks for an association between two continuous variables
Example: Is there correlation between waist circumference and blood pressure?
Statistics
Spearman’s Rank Correlation Coefficient
Used to compare the statistical dependence of two variables by rank
Example: Looking at the correlation between IQ and number of hours spent playing computer games
MEN1 Syndrome
“PPP”
Pituitary Adenoma
Parathyroid Hyperplasia
Pancreatic Tumours [60%: Gastrinomas]
MEN2A Syndrome
“MPP”
Medullary Thyroid Cancer
Parathyroid Hyperplasia
Phaeochromocytoma
MEN2B Syndrome
“MMP”
Medullary Thyroid Cancer
Marfanoid Habitus
Phaeochromocytoma
CYP3A4 Inhibitors
“SICKFACES.COM GQ”
Sodium Valproate
Isoniazid
Cimetidine
Ketoconazole
Fluconazole
Alcohol (Binge Drinking)
Ciprofloxacin
Erythromycin
Sulfanamides
Chloramphenicol
Omeprazole
Metronidazole
Grapefruit Juice
Quinidine
CYP3A4 Inducers
“SCRAP GPS”
Smoking
Carbamazpine
Rifampicin
Alcohol (Chronic)
Phenytoin
Griseofulvin
Phenobarbitones
Sulphonylureas
Causes of HAGMA
“CAT MUDPILES”
Carbon Monoxide, Cyanide
Aspirin
Theophylline
Methanol
Urea
DKA / Alcohol Ketoacidosis
Propylene Glycol
Isoniazid, Iron, Ibuprofen
Lactic Acidosis
Ethylene Glycol
Salicylate
Causes of NAGMA
“HARD UPS”
Hyperalimentation, HyperPTH, HCl Acid
Acetazolamide, Addison’s
RTA
Diarrhoea
Ureto-Sigmoid Fistula
Pancreatic Fistula
Spironolactone
Associated Conditions [5]
TP53 Gene Mutation
Li-Fraumeni Syndrome
“BLOB”
- Breast Cancer
- Leukaemia
- Osteosarcoma
- Brain Cancer
Gene Mutation [2]
Breast Cancer
BRCA1
BRCA2
Associated Conditions [4]
Ras Gene Mutation
“BLOP”
Breast Cancer [KRas]
Lung Cancer [KRas]
Ovarian Cancer [KRas]
Pancreatic Cancer [Ras]
Associated Conditions [2]
RET Proto-Oncogene
MEN Syndromes
Hirschsprung’s Disease
Gene Mutations [1]
Primary Polycythaemia
JAK2 Mutation
Gene Mutations [2]
Cystic Fibrosis
Delta-F508 Mutation
Defective CFTR Gene
Associated Conditions [1]
BRAF Mutation
Malignant Melaonoma
Associated Conditions [1]
C-Myc Oncogene
t(8;14) Chromosome Translocation
Burkitt’s Lymphoma
Gene Mutations [2]
Hereditary Non-Polyposis Colon Cancer (HNPCC)
MSH2 Mutation
MLH1 Mutation
Gene Mutations [1]
Familial Adenomatous Polyposis (FAP)
APC Mutation
Auto-Antibodies [1]
Type 1 Diabetes Mellitus (T1DM)
Anti-GAD
HLA Associations [4]
HLA-DR3
Myasthenia Gravis
Hashimoto’s Thyroiditis
Primary Sclerosing Cholangitis (PSC)
Type 1 Diabetes Mellitus (T1DM)
HLA Associations [3]
HLA-DR4
Type 1 Diabetes Mellitus (T1DM)
Rheumatoid Arthritis
Autoimmune Thyroid Disease
CVP Waveform
A Wave
Atrial contraction
CVP Waveform
C Wave
Tricuspid bulging (IVC)
CVP Waveform
V Wave
Systolic filling of atrium
CVP Waveform
X Descent
Atrial relaxation
CVP Waveform
Y Descent
Early ventricular filling
Hypersensitivity Reaction Type I
Anaphylaxis
Hay Fever
Food & Drug Allergies
Hypersensitivity Reaction Type II
Haemolytic Reactions
ABO Incompatibility
Haemolytic Disease of the Newborn
Hypersensitivity Reaction Type III
Mediator & 3 Examples
Mediated by immune complexes
Post-Streptococcal GN
Rheumatoid Arthritis (RA)
Systemic Lupus Erythematosus (SLE)
Type IV
Hypersensitivity Reaction
Mediator & 3 Examples
Delayed reaction mediated by cellular response (T-cell)
Contact Dermatitis
T1DM
Multiple Sclerosis
Associated Conditions [1]
t(9;22) Philadelphia Chromosome Translocation (BCR-ABL)
Chronic Myeloid Leukaemia (CML)
Associated Conditions [1]
t(15;17) Chromosome Translocation
Acute Promyelcytic Leukaemia (PML)
Associated Conditions [1]
t(11;14) Chromosome Translocation
Mantle Cell Lymphoma
Associated Conditions [3]
EBV Infection
Hodgkin’s Lymphoma
Burkitt’s Lymphoma
Nasopharyngeal Cancer
Associated Conditions [1]
H.Pylori Infection
Gastric Lymphoma (MALT)
PBF Findings [3]
Schistocystes (Fragmented RBCs)
MAHA
DIC, TTP, HUS
RBC Inclusions [1]
Howell-Jolly Bodies
Hyposplenism
RBC Inclusions [1]
Heinz Bodies
G6PD Deficiency
RBC Inclusions [3]
Pappenheimer Bodies
Thalassaemia
Sideroblastic Anaemia
Haemolytic Anaemia
RBC Inclusions [4]
Basophilic Stippling
Lead Poisoning
Thalassaemia
Sickle Cell Anaemia
Myelodysplastic Syndrome
Autosomal Dominant Conditions
“HEAVY”
Huntington’s Disease
Ehler-Danlos Syndrome
Achondroplasia
von Willebrand’s Disease
PseudohypoparathYroidism
Autosomal Recessive Conditions
“SWATCH F”
Sickle Cell Anaemia
Wilson’s Disease
α1-AT Deficiency
Thalassaemia
Cystic Fibrosis
Haemochromatosis
Friedrich’s Ataxia
HIV Opportunistic Infections [5]
CD4 Count 200 - 500
Tuberculosis
Herpes Zoster
Oropharyngeal Candidiasis
Kaposi Sarcoma
Non-Hodgkin’s Lymphoma
HIV Opportunistic Infections [3]
CD4 Count 100 - 200
PCP Pneumoina
Oesophageal Candidiasis
HIV-Related Dementia
HIV Opportunistic Infections [5]
CD4 Count < 100
Cerebral Toxoplasmosis
Cryptococcal Meningitis
CMV Infection
Disseminated MAC Infection
John Cunningham Virus → PMFL
HBV Panel
Lung Upper Lobe Fibrosis
“SA CATS”
Sarcoidosis
ABPA
Coal Miner’s Pneumoconiosis
Ankylosing Spondylitis
Tuberculosis
Silicosis
Lung Lower Lobe Fibrosis
“RASH”
Rheumatoid Arthritis
Asbestosis
Scleroderma
Hamman-Fisch Syndrome (IPF)
Paraneoplastic Syndromes [2]
Small Cell Lung Cancer (SCLC)
SIADH
Cushing’s (Ectopic ACTH)
Paraneoplastic Syndromes [1]
Squamous Cell Lung Cancer
PTHrP-Mediated Hypercalcaemia
Paraneoplastic Syndromes [1]
Bronchial Carcinoid
Carcinoid Syndrome
Auto-Antibodies [1]
Heparin-Induced Thrombocytopaenia (HIT)
Anti-PF4
Auto-Antibodies [1]
Immune Thrombocytopaenic Purpura (ITP)
Anti-Nuclear (ANA)
HBV Panel
HBV Panel
HBV Panel
HBV Panel
HBV Panel
Auto-Antibodies [1]
Paraneoplastic Cerebellar Degeneration
Anti-Yo
Gene Mutation [1]
Marfan’s Syndrome
FBN1 Gene
Paraneoplastic Syndrome [1]
Gastric Adenocarcinoma
Acanthosis nigricans
Western Blot
Used to separate native proteins by 3D structure, or denatured proteins by polypeptide length
Eastern Blot
Used to characterize post-translational modifications to peptides and proteins
Northern Blot
Used to characterize RNA structure
Southern Blot
Used to evaluate DNA sequences
Autosomal Dominant Conditions
“DOMINANT”
Dystophica Myotonica
Osteogenesis Imperfecta
Marfan’s Syndrome
Intermittent Porphyria
Noonan’s Syndrome
ADPKD
Neurofibromatosis
Tuberous Sclerosis
Antibiotic Choice
Strep Pyogenes IE
IV Penicillin + Gentamicin
Antibiotic Choice
Staphylococcal IE
(Non-MRSA)
IV Flucloxacillin + Gentamicin
Antibiotic Choice
MRSA IE
IV Linezolid
(Traditionally IV Vancomycin, but Linezolid has growing evidence as a superior option)
Classic Investigations [1]
Serum Caeruloplasmin
Wilson’s Disease
HLD Drug Mechanisms
Evolocumab
PCSK9 Inhibitor
HLD Drug Mechanisms
Fibrates
PPAR-α Agonist
HLD Drug Mechanisms
Ezetimibe
NPC1L1 Inhibitor
HLD Drugs Mechanism
Statins
HMG-CoA Reductase Inhibitor
DM Drug Mechanisms
Acarbose
Alpha-Glucosidase Inhibitor
DM Drug Mechanisms
Gliptins
DPP4 Inhibitor
DM Drug Mechanisms
Glutides
GLP-1 Agonists
DM Drug Mechanisms
Glitazones
PPAR-γ Agonist
DM Drug Mechanisms
Glifozins
SGLT2 Inhibitor
Drug Side-Effects
Vincristine
Neuropathy
Drug Side-Effects
Cyclophosphamide
Haemorrhagic Cystitis
Co-administration with Mesna reduces risk of this happening
Drug Side-Effects
Doxorubicin
Cardiomyopathy
Meningitis Pathogens
Adults
“E-NHS”
Enterovirus
Neisseria Meningitidis
Herpes Simplex Virus
Streptococcus Pneumoniae
Meningitis Pathogens
Elderly
“SGL”
Strep Pneumoniae
Gram-Negative Rods
Listeria
Tumour Markers [1]
Myeloma
β2 Microglobulin [Used for monitoring progression]
Tumour Markers [1]
Medullary Thyroid Cancer
Calcitonin [Used for monitoring progression]
Headache Types & Treatment
Multiple unilateral episodes
Short duration (< 2 minutes)
Sensitive face eg triggered by brushing teeth or blow-drying hair
Trigeminal Neuralgia
Acute Tx: Carbamazepine
Headache Types & Treatment
Retro-orbital pain
Tearing, eye redness
Long duration (up to 90 minutes)
Long “dormant” periods (months)
Multiple episodes when attack occurs (several times a day)
Cluster Headache
Acute Tx: O2, Sumitriptan
Prophylaxis: Verapamil
Classic Pneumonia Pathogens [1]
Related to HSV-1 (Cold sores)
Streptococcus Pneumoniae
Classic Pneumonia Pathogens [2]
Cavitation
Staphylococcus [Occurs after Flu]
Klebsiella [Occurs in alcoholics and immunocompromised hosts]
Common Pneumonia Pathogens [1]
Related to epidemic outbreaks
Erythema multiforme
+ Treatment?
Mycoplasma
Tx: Macrolides eg Clarithromycin
Common Pneumonia Pathogens [1]
Preceded by ARI 1-2 weeks prior
Chlamydia Pneumoniae
DM Drug Mechanisms
Metformin
Indirect AMP Kinase Activation
Auto-Antibodies [2]
Pemphigus Vulgaris
Anti-DSG1
Anti-DSG3
Classic Investigations [1]
Faecal Elastase
Pancreatic Insufficiency
Classic Investigations [2]
Faecal Calprotectin
Inflammatory Bowel Disease (IBD)
Infective Colitis
Classic Investigations [1]
Faecal Fat
Pancreatic Insufficiency
(But Elastase is superior)
Drug Side-Effects [2]
Mycophenolate
Tremor
Gum Hypertrophy
Drug Side-Effects [2]
Methotrexate
Pulmonary Fibrosis
Hepatic Fibrosis
Drug Side-Effects [2]
Ciclosporin
Hirsutism
Gum Hypertrophy
Anti-Emetic Mechanism
Domperidone
D2/D3 Dopamine Receptor Antagonist
Anti-Emetic Mechanism
Betahistine
H3 Receptor Antagonist
(Also weak H1 Agonist)
Anti-Emetic Mechanism
Ondansetron
5HT3 Receptor Antagonist
Headache Types & Treatment
Female obese patient
Worse in morning and lying flat
Bilateral papilloedema
Elevated LP opening pressure
Idiopathic Intracranial Hypertension (IIH)
Acute Tx: Acetazolamide
Prophylaxis: Weight loss
Classic Investigations [1]
Carbon-13 Urea Breath Test
H.Pylori Clearance
Classic Investigations [1]
Hydrogen Breath Test
Small Bowel Overgrowth Syndrome
Antibiotic Mechanisms
Quinolones
-floxacins
DNA Gyrase Inhibitor
Dog Bite Bacteria & Treatment
Pasteurella
1st Line: Augmentin
2nd Line: Doxycycline + Metronidazole (if allergic to Penicillins)
Classic ECG Changes
Acute Pericarditis
ST depression in V1, aVR
Concave STE in other leads
α1-AT Deficiency Genotypes
Lung Involvement
II or ZZ
α1-AT Deficiency Genotypes
Liver Involvement
MZ or SZ
α1-AT Deficiency Genotypes
Generally Well
MM
Spot Diagnosis
Aortic Stenosis
Small Bowel Angiodysplasia
von Willebrand’s Disease
Heyde Syndrome
Stroke Features
Vertigo
Swallowing impairment
Ipsilateral cerebellar signs
Contralateral loss of pain and temperature sensation
PICA
(Lateral Medullary Syndrome)
Spot Diagnosis
Vasculitis
Uveitis
Oro-Genital Ulcers
Behcet’s Disease
In-Stent Thrombosis vs Stent Restenosis
In-Stent: Within 30 days
Restenosis: After 30 days
Spot Diagnosis
Male phenotype
Tall height
Bilateral gynaecomastia
Sparse pubic hair
Small testes
Klinefelter Syndrome (XXY)
Spot Diagnosis
Female phenotype
Bilateral undescended testes
Bilateral inguinal hernias as an infant
Androgen Insensitivity Syndrome
Spot Diagnosis
Unable to progress through puberty
Poor sense of smell
Kallman Syndrome
(Inherited form of Hypogonadotrophic Hypopituitarism)
Spot Diagnosis
Abnormal facies
Short stature
Cardiac defects
Ribcage abnormalities
Risk of haemorrhage
Noonan Syndrome
Spot Diagnosis
Female phenotype
Short stature
Bicuspid aortic valve
Tuner Syndrome
Spot Diagnosis
Tall, thin
High arched palate
Valvulpathy - AR / PR / MVP
Upward lens dislocation
Marfan Syndrome
(FBN1 Defect)
HLA Associations [1]
HLA-B108
Graves’ Disease
Spot Diagnosis
Optic neuritis
Loss of propioception and vibration sense
Upgoing plantars
Vit B12 deficiency
Spot Diagnosis
Ophthalmoplegia
Short-term memory loss
Confabulation
Wernicke’s Encephalopathy (Thiamine deficiency)
Spot Diagnosis
Rapidly-progressing lower limb weakness
Hyper-tonia
Hyper-reflexia
Perianal anaesthesia
Conus Medullaris Syndrome
Spot Diagnosis
Gradually-worsening LL weakness
Hypo-tonia
Hypo-reflexia
Saddle anaesthesia
Cauda Equina Syndrome
Spot Diagnosis
Lower limb weakness
Hypo-tonia
Loss of pain and temperature sensation
Anterior Spinal Artery Syndrome
STI Treatment
Gonorrhoea
1st-Line: IM Ceftriaxone 1g ONCE
If allergy: PO Azithromycin 2g ONCE
If epididymo-orchitis: PO Doxycyline x 14 days
If generalized disease (eg joint involvement): IV Ceftriaxone
STI Treatment
Chlamydia
Doxycyline
Spot Diagnosis & Treatment
Russian
Pharyngitis with grey-white pseudomembrane
Diphtheria
Tx: Azithromycin
Spot Diagnosis
Middle-aged male
Chronic cough
Weight loss
Steatorrhoea
Arthritis
Whipple’s Disease
Key Feature: PAS+ Macrophages
Tx: Bactrim
Spot Diagnosis
HIV+
Clusters of firm, flesh-coloured, umbilicated papules
Molluscum contagiosum virus infection
Pharmacotherapy for Stress Incontinence [1]
Duloxetine
Pharmacotherapy for Urge Incontinence [3]
Oxybutinin
Tolteridone
Mirabegnon
Spot Diagnosis
HIV+, CD < 100
Progressive memory loss
Psychiatric disturbances
Progressive multifocial leukoencephalopathy (PMFL)
ie John Cunningham (JC) virus infection
HLA Associations [5]
HLA-DR2
Goodpasture’s Syndrome
Systemic Lupus Erythematosus (SLE)
Multiple Sclerosis
Primary Biliary Cholangitis (PBC)
Autoimmune Hepatitis
HLA Associations [1]
HLA-B5701
Abacavir Hypersensitivity
Drug Side-Effects
Bleomycin
Pneumonitis → Pulmonary Fibrosis
Drug Side-Effects
Trastuzumab
Dilated cardiomyopathy
Food Poisoning Bacteria
Onset: 1-6 hours
Dairy foods
More vomiting than diarrhoea
Staphylococcus Aureus
Mechanism: Enterotoixin
Food Poisoning Bacteria
Reheated rice
Chinese takeaway
Non-bloody diarrhoea
Profuse diarrhoea and/or vomiting
Bacillus Cereus
Food Poisoning Pathogen & Treatment
Onset: 6-12 hours
Both vomiting and diarrhoea
Bloody diarrhoea
Uncooked chicken
Campylobacter Jejuni
Tx: Quinolone or Cephalosporin
Food Poisoning Bacteria
Onset: 12-48 hours
Profuse diarrhoea
No vomiting
NH outbreak
Norovirus
Food Poisoning Pathogen & Treatment
Onset: 6 - 12 hours
Both vomiting and diarrhoea
Bloody diarrhoea
Abdominal cramps
Salmonella Typhi
Tx: Quinolones
Food Poisoning Pathogen & Treatment
Onset: Slow, benign
Recent travel
Contaminated water
IBS-like symptoms
Giardiasis
1st-Line Tx: Tinidazole
2nd-Line: Metronidazole
Food Poisoning Pathogen & Treatment
1-3 week duration
Recent travel
Bloody mucoid diarrhoea
Lower abdominal pain
Liver abscess (Trophozoites)
Entamoeba Histolytica
(Amoebiasis)
Tx: Metronidazole
Food Poisoning Bacteria
Onset: Acute
Watery non-bloody diarrhoea
Sometimes green stools
Abdominal cramps
Cryptosporidium
Food Poisoning Bacteria
Onset: Acute
Watery non-bloody diarrhoea
Sometimes green stools
Abdominal cramps
Cryptosporidium
Spot Diagnosis
Seizure
Cafe-au-lait spots
Fleshy nodules on trunk and arms
Eye: Lisch nodules
Neurofibromatosis Type 1
Spot Diagnosis
Brown Kaiser-Fleischer Rings
Wilson’s Disease
(Copper Deposits)
Anti-Platelet Mechanisms
Dipyridamole
Adenosine Uptake Inhibitor
Spot Diagnosis
Kaiser-Fleischer Rings
Wilson’s Disease
(Copper Deposits)
Spot Diagnosis
Seizure
Cafe-au-lait spots
Nodules on trunk and arms
Eye: Cataracts
Neurofibromatosis Type 2
Spot Diagnosis & Treatment
LMN signs
Ascending LL weakness
Recent gastroenteritis
Guillain-Barre Syndrome
Tx: IV Immunoglobulin
Spot Diagnosis
Central weakness
Blurred vision
Speech and swallowing impairment
Food-borne illness
Botulism
Anti-Platelet Mechanisms
Heparin
Antithrombin-III Inhibitor
Gene Mutations [1]
Non-Alcoholic Steatohepatitis (NASH)
PNPLA3
Encapsulated Organisms [3]
Neisseria Meningitidis
Strep Pneumoniae
Haemophilus Influenzae
Stroke Features
Contralateral LL loss of power and sensation
Gait apraxia
Urinary incontinence
Anterior cerebral artery
(Mostly distal anterior, as proximal anterior will still have enough collaterals to compensate)
Stroke Features
Hemiparesis of
- Contralateral lower half of face
- Contralateral UL and LL
Contralateral sensory loss
Ataxia
Dysphasia
Hemispatial neglect
Middle cerebral artery
SLE Treatment
Predominantly skin and joint disease
Tx: Hydroxychloroquine
SLE Treatment
Mild Lupus Nephritis
Mycophenolate Mofetil
SLE Treatment
Life-threatening lupus (eg cerebral involvement, severe lupus nephritis)
Cyclophosphamide
Bone Disorders
Bone Disorders
Bone Disorders
Bone Disorders
Bone Disorders
Hyperparathyroidism
Hyperparathyroidism
Hyperparathyroidism
Drug Side-Effects [1]
Docetaxel
Renal Tubular Toxicity
RAI Drug Mechanisms
Tocilizumab
Anti-IL6
RAI Drug Mechanisms
Rituximab
Anti-CD20
RAI Drug Mechanisms
Infliximab
Anti-TNFα
Drug Mechanisms
Baclofen
GABA-B Agonist
Auto-Antibodies [1]
Paraneoplastic Cerebellar Degeneration (PCD)
Anti-Purkinje Cell
Classic Investigations [1]
Urine Copper Excretion
Wilson’s Disease
Classic Investigations [1]
24hr Urinary Catecholamines & Metanephrines
Phaeochromocytoma
Spot Diagnosis
BGIT
Yellow papules at neck
Retinal angioid streaks
Pseudoxanthoma Elasticum
“Plucked chicken skin”
Spot Diagnosis
High-arched palate
Skin elasticity
Hypermobile joints
Ehler-Danlos Syndrome
Autosomial dominant
Collagen Type V α1 Mutation
Spot Diagnosis
High-arched palate
Lens dislocation
Aortic and mitral valve disease
Arachnodactyly
Marfan’s Syndrome
Autosomal dominant
FBN1 gene mutation
Vit K-Dependent Clotting Factors [6]
Factors II, VII, IX, X
Protein C and S
Clotting Disorders
Factor V Leiden
Activated Protein C resistance
Protein C usually cleaves Factor V, so when there is resistance then Factor V will accumulate and lead to increased risk of clotting
Autosomal dominant
Clotting Disorders
Haemophilia A
Lack of Factor VIII
Predisposed to bleeding, especially into joints (haemarthrosis)
X-linked recessive
Drug Side-Effects [2]
Pyrazinamide
Joint pains [Most common]
Hepatitis
Drug Side-Effects [1]
Ethambutol
Optic neuritis
Drug Side-Effects [2]
Isoniazid
Peripheral neuropathy [Most common, countered with Pyridoxine]
Hepatitis
Drug Side-Effects [3]
Rifampicin
Orange body fluids
Thrombocytopaenia
CYP450 Inducer
Morphine Clearance
Cleared by kidneys, therefore avoid in renal impairment
Fentanyl, Buprenoprhine are safe to use in CKD
Asthma Drug Mechanisms
Ipratropium
Short-Acting Muscarinic Antagonist (SAMA)
Asthma Drug Mechanisms
Tiotropium
Long-Acting Muscarinic Antagonist (LAMA)
Asthma Drug Mechanisms
Salbutamol
Short-Acting β2-Agonist (SABA)
Asthma Drug Mechanisms
Salmeterol
Long-Acting β2-Agonist (LABA)
Food Poisoning Pathogen & Treatment
Bloody diarhoea
Abdominal pain
Daycare centre outbreaks
Shigella
Tx: Azithromycin
Clotting Disorders
Haemophilia B
Lack of Factor IX
X-linked recessive
Classic Investigations
Alcoholic Liver Disease
AST:ALT Ratio >2:1
Felty Syndrome
[4 Features]
Hypersplenism
Neutropaenia
Rheumatoid Arthritis (RA)
HLA-DRW4 Association
Number Needed To Treat (NNT) Equation
1 ÷ (Absolute Risk-Benefit)
eg if the new treatment has 3% fewer MACE events than the old t reatment, the NNT is 1 ÷ 0.03
Stroke Activation Window
< 4.5 hours = Thrombolysis
4.5 - 6 hours = KIV Thrombolysis depending on cerebral blood flow imaging
> 6 hours = Aspirin 300mg
Opioid Conversion
PO Codeine → PO Morphine
PO Codeine 100mg = PO Morphine 10mg
STI Treatment
Syphilis
1st-Line: IM Penicillin 2.4 MU
If allergy: PO Azithromycin 2g ONCE
STI Spot Diagnosis & Treatment
Ulceration and skin destruction in genital region
No macular rash
Donovanosis
(Klebsiella granulomatis)
Tx: Macrolides or Quinolines x 3 weeks
STI Spot Diagnosis & Treatment
Unilateral inguinal or femoral lymphadenopathy
Signs of lymphatic obstruction
Lymphogranuloma Venereum
Tx: Azithromycin x 3 weeks
Spot Diagnosis
Ataxia
Muscle rigidity
Tremor
Autonomic dysfunction
Poor response to Levodopa
Multisystem Atrophy (MSA)
SBP Common Bacteria [3]
E.Coli [#1 Most Common]
Kleb Pneumoniae [#2]
Pseudomonas Aeruginosa [<10%, but will need Aminoglycoside cover]
Opioid Conversion
PO Morphine → SC Morphine
Reduce by 50%
PO Morphine 160mg = SC Morphine 80mg
Nephron Sites Of Action
Nephron Sites Of Action
Nephron Sites Of Action
Nephron Sites Of Action
X-Linked Recessive Conditions
“GRAB HDK”
G6PD Deficiency
Retintis Pigmentosa
Androgen Insentivity Syndrome
Becker’s Muscular Dystrophy
Haemophilia A & B
Duchenne’s Muscular Dystrophy
Kallman Syndrome
X-Linked Dominant Conditions
“ARV”
Alport Syndrome
Rett Syndrome
Vit D-Resistant Rickets
Spot Diagnosis
Multiple duodenal or proximal jejunal ulcers
MEN-1 conditions
Zollinger-Ellison Syndrome (Gastrinomas)
Spot Diagnosis
Severe chronic watery diarrhoea
Flushing
Hypotension
Not infection-related
VIPoma (Pancreatic endocrine tumour)
Antidote
Benzodiazepine Overdose
Flumazenil
Antidote
Opiate Overdose
Naloxone
Rash Diagnosis
Painful, erythematous, raised nodules on both shins
Erythema Nodosum
Associations: Sarcoidosis
Rash Diagnosis
Yellowish-brown patches on shins, with prominant telangiectasia
Necobiosis Lipoidica
Associations: DM
Rash Diagnosis
Erythematous nodule / pustule, growing progressively to become ulceration with adherent pus at the centre
Pyoderma Gangrenosum
Associations: IBD
Antidote
Ethanol / Ethylene Glycol Overdose
Fomepizole
Antidote
Tricycle Antidepressants (TCA) Overdose
Sodium Bicarbonate
(Not really an antidote, but proven to improve mortality)
Spot Diagnosis
Gastric biopsy showing extensive lymphoid infiltration, with the formation of germinal centres within the lamina propria
Gastric MALToma, clasically from H.Pylori infection
Classic Investigations
ADAMTS13
Thrombotic Thrombocytopenic Purpura (TTP)
eg Shiga toxin-induced from E.Coli 0157 infection
Rosacea Treatment
1st-Line: Topical Metronidazole
2nd-Line: Topical Brimodine [Good for flushing]
Severe Disease: PO Tetracycline or Doxycycline, PO Isotretinoin
Opioid Conversion
PO Morphine PRN Dose Calculation
1/6 of total daily dose, usually Q2-4H
ie if total daily dose is 90mg, PRN dose should be 15mg Q2-4H
Statistics
Tukey’s Range Test
Used to determine if the mean of different populations are statistically different
Example: Comparing baseline smoking rates of different ethnic groups
Antidotes
Serotonin Syndrome
Cyproheptadine
Gene Mutations [1]
Focal Segmental Glomerulonephritis (FSGS)
APOL1 [West Africans]
Renal Tubular Acidosis (RTA) Type I
Hypokalaemia, metabolic acidosis
Distal tubule fails to form acidic urine
Associated with autoimmune conditions
Renal Tubular Acidosis (RTA) Type II
Hypokolaemia, metabolic acidosis
Proximal tubule fails to reabsorb bicarbonate
Associated with Fanconi Syndrome
Renal Tubular Acidosis (RTA) Type IV
Hyperkalaemia, metabolic acidosis
Aldosterone resistance from intrinsic renal damage
Associated with drugs eg ACE/ARB
Spot Diagnosis
Hypotension
Hypokalaemia
Hyponatraemia
Hypoglycaemia
Hypocortisolism
eg Adrenal Insufficiency such as Addison’s Disease
Spot Diagnosis
Medial malleolus ulcer surrounded by haemosiderin and varicose eczema
Venous ulcer
HLA Associations [2]
HLA-B52
Takayasu’s Arteritis
Ulcerative Colitis
(Only in Asian populations)
Acute Tubular Necrosis (ATN) Pathophysiology
Renal tubule necrosis after a period of hypotension eg severe sepsis, myocardial infarction, acute blood loss
Cat Scratch Fever
Bacteria & Treatment
Bartonella Henselae
Mild: Supportive treatment as mostly self-limiting illness
Severe: Azithromycin, Ciprofloxacin or Bactrim
Associated Viruses [2]
Cervical Cancer
HPV-16
HPV-18
Associated Viruses [1]
Cold Sores
HSV-1
Associated Viruses [1]
Genital Herpes
HSV-2
Associated Viruses [2]
Genital Warts
HPV-6
HPV-11
Statistics
Fisher’s Exact Test
Used to analyze contigency tables
eg Within boys and girls, how many like Snickers and how many don’t?
Spirometry
Obstructive Picture
+ Reduced DLCO = Emphysema
+ Normal DLCO = Asthma / COPD
Reversibility = Asthma rather than COPD
Spirometry
Restrictive Picture
+ Reduced DLCO = Lung Parenchyma
+ Normal DLCO = Neuromuscular
Joint XR Findings
Linear cartilage calcification
aka chondrocalcinosis
Pseudogout
Joint XR Findings
Joint space narrowing
Osteophyte formation
Osteoarthritis
Headache Types & Treatment
Unilateral headache
Preceding aurea eg nausea, change in sense of smell
Migraine
Acute Tx: Triptans
Prophylaxis: TCAs
Spot Diagnosis & Treatment
Japanese
Vasculitis of aortic branches eg coronary arteries, carotid arteries
Takayasu’s Arteritis
Associated with HLA-B52
Tx: High-dose corticosteroids
LTOT Criteria for COPD [5]
- PaO2 < 7.3
- PaO2 < 8.0 + One of the below
A. Secondary polycythaemia
B. Peripheral oedema
C. Pulmonary hypertension
Food Poisoning Pathogen & Treatment
Undercooked pork
Subacute presentation
Mild non-bloody diarrhoea
Right iliac fossa pain
Yersinia Enterocolitica
Tx: Aminoglycosides
Complement Deficiencies
C5 Deficiency [1]
Increased risk of gram-negative bacteriaal infection
Complement Deficiencies
C2 Deficiency [2]
Increased risk of Haemophilus Influenzae infection
Increased risk of autoimmune conditions eg lupus
Complement Deficiencies
C4 Deficiency [4]
Increased risk of autoimmune conditions, namely
- Henloch-Schonlein Purpura (HSP)
- T1DM
- Systemic Lupus Erythematosus (SLE)
- Glomerulonephritis
Complement Deficiencies
C1 Deficiency [2]
Increased risk of
- C1q: SLE, GN
- C1r: SLE
Heart Sounds
Ejection systolic murmur (ESM)
Loudest at right 2nd intercostal space
Radiates to carotids
Aortic stenosis
Heart Sounds
Narrow splitting of S2
Severe pulmonary hypertension
Heart Sounds
Pan-systolic murmur (PSM)
Does not intensify with inspiration
Mitral regurgitation
Heart Sounds
Reverse splitting of S2
Occurs because of delayed aortic valve closure, usually due to delayed electrical activation of LV
eg
Left bundle branch block (LBBB)
Hypertensive heart disease
Heart Sounds
Wide splitting of S2
Occurs because of either
1. Delayed pulmonary valve closure (eg RBBB)
2. Early aortic valve closure (eg VSD)
Classic Investigations [1]
Serum 1-3 β-D-Glucan
Fungal Infection
Classically PCP Pneumonia
Associated Conditions [1]
HER2 Gene Mutation
Breast Cancer
HER2+ = Suscetible to Trastuzumab
Gout Drug Mechanisms
Allopurinol
Xanthine Oxidase Inhibitor
Purine Analogue
Gout Drug Mechanisms
Febuxostat
Xanthine Oxidase Inhibitor
Non-Purine Analogue
Gout Drug Mechanisms
Colchicine
Tubulin Polymerase Inhibitor
Gout Drug Mechanisms
Benzbromarone
URAT1 Inhibitor
Carney Syndrome
[4 Features]
Naevi
Ephelides (freckles)
Myxoid neurofibromas
Cardiac LAA myxomas
Spot Diagnosis
Multiple joint dislocations
Learning difficulties
Marfanoid habitus
Downward lens dislocation
Homocystinuria
(Crystathionine β-synthase deficiency)
Antibiotic Mechanisms
Tetracyclines
Inhibit 30S ribosomal subunit
Antibiotic Mechanisms
Trimethoprim
Inhibit dihydrofolate reduction
Antibiotic Mechanisms
Penicillins
Inhibit peptidoglycan synthesis, thus disrupting bacterial cell wall
Nephrotic Syndromes
General Treatment
1st-Line: Steroids
2nd: Cyclophosphamide
Nephrotic Syndromes
General Treatment
1st-Line: Steroids
2nd: Cyclophosphamide
Nephrotic Syndromes
General Treatment
1st-Line: Steroids
2nd: Cyclophosphamide
Nephrotic Syndromes
General Treatment
1st-Line: Steroids
2nd: Cyclophosphamide
Nephritic Syndromes
Nephritic Syndromes
Nephritic Syndromes
Nephritic Syndromes
Heart Sounds
Early diastolic murmur [2]
Aortic regurgitation
Pulmonary regurgitation
Heart Sounds
Mid-diastolic murmur [3]
Mitral stenosis
Tricuspid stenosis
Atrial myxoma
Heart Sounds
Late systolic murmur [1]
Loudest at apex
Mitral valve prolapse
Heart Sounds
Pan-systolic murmur (PSM)
Intensifies with inspiration
Tricuspid regurgitation
Spot Diagnosis
Hyperandrogenism (Essentially, becoming a brutish man)
Elevated Testosterone
LH-FSH Ratio > 2
Polycystic Ovarian Syndrome (PCOS)
Recurrent laryngeal nerve is near which other structure?
Bifurcation of the inferior thyroid artery
Gene Mutations [1]
Autosomal Recessive Adenomatous Polyposis
MUTYH Gene Mutation
Common Pneumonia Pathogens
Pet birds
Splenomegaly
Chlamydia Psittaci
1st-Line Tx: Doxycyline
2nd-Line Tx: Azithromycin
Coagulation Panel
Haemophilia A: Factor VIII Deficiency
Haemophilia B: Factor IX Deficiency
Both are X-linked recessive diseases
Factor VIII and IX are both part of Intrinsic Pathway, which is evaluated using APTT
Deficiency of the factors will lead to prolonged APTT
Coagulation Panel
Vit K is required for Factors II, VII, IX, X to work
Factors II and VII are part of Extrinsic Pathway (assessed by PT)
Factors IX and X are part of Intrinsic Pathway (assessed by APTT)
Coagulation Panel
In DIC, thrombocytopaenia is the main problem. Clotting factors are largely stable.
Coagulation Panel
von Willebrand Factor (vWF) binds to Factor VIII to prevents its clearance
Therefore reduced vWF usually leads to reduced Factor VIII, predisposing to bleeding
However its effect on APTT is variable, meaning although Factor VIII is affected, it does not always prolong APTT
Classic XR Findings
Broncho-arterial ratio > 1.5
Lack of bronchial tapering
Bronchi visualized close to pleural surface
Bronchiectasis
Classic Investigations
Direct Antiglobulin Test (DAT)
Autoimmune Haemolytic Anaemia (AIHA)
If the cells agglutinate, then the test is positive and the haemolysis is related to anti-RBC antibodies
Classic Investigations
Cryohaemolysis & Eosin-5’-Maleimide Binding Test
Hereditary Spherocytosis
Headache Types & Treatment
Bilateral
Band going around the head
Tension Headache
Classic Imaging Findings
HIV+
MRI Brain: Ring-enhancing lesions
Cerebral Toxoplasmosis
Tx: Bactrim
Classic Imaging Findings
HIV+
MRI Brain: T2W white matter enhancement
CMV Encephalitis
Classic Imaging Findings
HIV+
MRI Brain: Ventricular enlargement, dense enhancement of choroid plexus
Cryptococcal Meningitis
Classic Imaging Findings
HIV+
MRI Brain: Temporal lobe enhancement
HSV Encephalitis
Classic Imaging Findings
HIV+
MRI Brain: Multiple periventricular and subcortical lesions
- Hypointense on T1W
- Hypertensive on T2W
JC virus infection (PMFL)
Spot Diagnosis
Anaemia
Night sweats
Hypercalcaemia
Back pain
Normal ALP
Multiple Myeloma
Anti-Psychotic Agent in Parkinson’s Disease
Lorazepam (BZD)
Avoid Haloperidol / Risperidone as these are Dopamine antagonists and will worsen Parkinsonism
Stroke Features
Contralateral hemiplegia
Ipsilateral CN III palsy
Posterior cerebral artery
(Weber’s Syndrome)
Spot Diagnosis
Hypokalaemia
Metabolic alkalosis
High renin
High aldosterone
Low urinary Calcium excretion
Normotension
Gitelman’s Syndrome
Defect in proximal convoluted tubule (like Thiazide)
SLC12A3 Gene Mutation
Spot Diagnosis
Hypokalaemia
Metabolic alkalosis
High renin
High aldosterone
Normal-high urinary Calcium
Normotension
Bartter’s Syndrome
Defect in ascending loop of Henle (like Lasix)
SLC12A1 Gene Mutation
Spot Diagnosis
Hypokalaemia
Metabolic alkalosis
Low renin
Low aldosterone
Hypertension
Liddle’s Syndrome
Defect in collecting tubule (like MRA eg Spironolactone)
SCNN1B Gene Mutation
Spot Diagnosis
Hypokalaemia
Metabolic alkalosis
Low renin
High aldosterone
Hypertension
Hyporeninaemic hyperaldosteronism
Spot Diagnosis
Gradually-worsening weakness
Mixed UMN and LMN signs
- UMN: Hyper-tonia
- LMN: Hypo-reflexia
Motor Neurone Disease
Gout Drug Mechanism
Rasburicase
Recombinant Urate Oxidase
Falciparum Malaria Treatment
Artesunate
No need Primaquine as Falciparum does not have liver hypnozoites
Non-Falciparum Malaria Treatment
Artemether-Lumefantrine
+ Primaquine for liver hyponozoites
STI Spot Diagnosis & Treatment
Painless ulcer on glans penis
Syphilis (Treponema Pallidum)
Spot Diagnosis & Treatment
East African
Pancytopaenia
Splenomegaly
Amastigotes on BMAT
Visceral Leishmaniasis
Tx: Miltefosine
Spot Diagnosis & Treatment
Slow growing
Pearlescent papule
Telangiectatic vessels
Sun-exposed area of face
Basal Cell Carcinoma (BCC)
1st-Line Tx: Surgery
2nd-Line: RT or Topical Immunotherapy
Spot Diagnosis
Rapidly growing
Flat erythematous scaling lesion
Non-healing skin ulcer
No telangiectasia
Squamous Cell Carcinoma (SCC)
Heart Sounds
Systolic murmur
Loudest at left sternal edge
Ventricular Septal Defect (VSD)
Spot Diagnosis
Pheochromocytoma
Retinal haemangioblastoma
Renal carcinoma
von Hippel-Lindau Disease
Risk factors for successful suicide [5]
Lives alone
Unemployment
Chronic debilitating physical health problems
Alcohol and drug dependence
Active mental illness
Spot Diagnosis
Splenomegaly
Marked rise in blast cells
Neutropaenia
Thrombocytopaenia
Rapid progression
Acute Myeloid Leukaemia (AML)
Staghorn Calculi
Magnesium ammonium phosphate composition
Common in Proteus or Klebsiella infections
Spot Diagnosis
Young woman
Pupil reacts slowly to light
Brisk accommodation reflex
Slow to relax once constricted
Holmes-Adie Pupil
Spot Diagnosis
Tonically small pupil
React poorly to light
Brisk accommodation reflex
Argyll-Robertson Pupil
Heart Sounds
Ejection systolic murmur
Loudest at left upper edge of sternum
Pulmonary Stenosis
Spot Diagnosis
Benign ovarian tumour
Ascites
Pleural effusion
Meig Syndrome
Homonymous Quadrantopias
Contralateral “PITS”
Parietal Lobe = Inferior Quadrantopia
Temporal Lobe = Superior Quadrantopia
Injury to the lobe causes contralateral visual loss
Binge drinking effect on DM glucose control
Alcohol leads to more blood flow to endocrine portion of pancreas, stimulating more insulin secretion hence risk of hypoglycaemia
Spot Diagnosis
Chronic venous leg ulcer
New nodule at margin - Ulcerated lesion with necrotic centre
Malignant transformation of venous ulcer into squamous cell carcinoma
STI Spot Diagnosis & Treatment
Fishy smelling
White vaginal discharge
No vaginal irritation
Not related to sexual intercourse
Bacterial vaginosis - Gardnerella Vaginalis
Tx: PO or Topical Metronidazole, or Topical Clindamycin
Spot Diagnosis
AKI
Maculopapular rash
Recent beta-lactam use
Fever with eosinophilia
Acute Interstitial Nephritis (AIN)
STI Spot Diagnosis & Treatment
African
1-2 painful ulcers
Painful inguinal lymphadenopathy
Chancroid
Tx: PO Azithromycin + IV Ceftriaxone
CSF Interpretation
CSF Interpretation
CSF Interpretation
CSF Interpretation
Visual Field Defects
Visual Field Defects
Visual Field Defects
Visual Field Defects
Upper Limb Dermatomes
Upper Limb Dermatomes
Upper Limb Dermatomes
Upper Limb Dermatomes
Upper Limb Dermatomes
Lower Limb Dermatomes
Lower Limb Dermatomes
Lower Limb Dermatomes
Lower Limb Dermatomes
Lower Limb Dermatomes
Lower Limb Dermatomes
Lower Limb Dermatomes