Quick facts Flashcards

(268 cards)

1
Q

Which area of the bowel is most commonly affected by ischaemic colitis

A

Splenic flexure (watershed area)

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2
Q

XR signs of ischaemic colitis

A

Thumbprinting

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3
Q

Which malignancy are patients with Sjogren’s syndrome at greater risk of?

A

Lymphoma / lymphoid malignancies

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4
Q

Aetiology of pemphigus vulgaris

A

Antibodies against desmoglein 3

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5
Q

Clotting screen abnormality in Von Willebrands disease

A

Mildy elevated APTT

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6
Q

Most aggressive type of melanoma

A

nodular

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7
Q

Cells responsible for hyperacute organ rejection

A

B cells

induce a reaction normally within minutes or hours of the transplant

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8
Q

How long before a patient with a resolved pneumothorax should fly?

A

2 weeks

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9
Q

Which marker raises first after a myocardial infarction

A

myoglobin

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10
Q

Which type of pneumonia causes red blood cell agglutination

A

Mycoplasma pneumoniae
Promotes production of IgM antibodies (cold agglutinins)

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11
Q

Translocation associated with Burkitt’s lymphoma

A

c-myc gene translocation, usually t(8:14).

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12
Q

Disease with ‘starry sky’ appearance on microscopy

A

Burkitt’s lymphoma

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13
Q

Translocation and disease associated with Philadelphia chromosome

A

t(9:22)
chronic myeloid leukaemia

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14
Q

What is the ABG picture in hypoventilation

A

Respiratory acidosis

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15
Q

What kind of skin cancer has keratin pearls on histopathology

A

SCC

SCCs arising in a chronic scar are typically more aggressive and carry an increased risk of metastasis

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16
Q

Most common non-iatrogenic cause of Cushing’s syndrome?

A

Pituitary tumour = Cushing’s disease (80%)

Adrenal adenoma (10%)

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17
Q

What conditions are pyoderma gangrenosum linked to?

A

IBD (UC, Crohn’s)
RA, SLE
PBC

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18
Q

Other features of ulcerative colitis

A

Large joint arthritis
Sacroilitis
Pyoderma gangrenosum

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19
Q

Which TCA is most dangerous in overdose

A

Dosulepin

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20
Q

What might cause a false negative Coeliac’s serology test?

A

IgA deficiency as TTG is an IgA antibody

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21
Q

Endoscopic biopsy findings in Coeliac’s

A

Gold standard Ix
Villous atrophy
Crypt hyperplasia
Increased intraepithelial lymphocytes
Lamina propria infiltration with lymphocytes

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22
Q

Which antibiotics might have a crossover with a Penicillin allergy

A

Cephalosporins e.g. cefalexin, Ceftriaxone
Carbapenems

All beta-lactam antibiotics

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23
Q

Which infections are patients with a splenectomy particularly at risk of?

A

Pneumococcus
Haemophilus
Meningococcus

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24
Q

Prophylaxis and vaccines for patients undergoing splenectomy

A

Hib, meningitis A&C
Annual influenza
Pneumococcal every 5 years

Pen V

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25
H. Pylori associations
Duodenal and Gastric Ulcers Gastric cancer B cell lymphoma of MALT tissue Atrophic gastritis
26
Management of H. Pylori
PPI Amox Clari or Metro (or both if pen allergic)
27
Tx of scabies
5% Permethrin All skin including scalp Leave on for 12 hours Repeat in 7 days
28
Signs of Wilson Disease
Neuropsychiatric Sx Kayser-Fleischer rings Liver disease - hepatitis, cirrhosis Ix - reduced serum caeruloplasmin, reduced serum copper, increased urinary excretion
29
Inheritance pattern of Wilson's disease
Autosomal recessive Increased copper absorption Reduced hepatic copper excretion ATP7B, chromosome 13
30
Mx of Wilson's disease
Penicillamine / Trientine hydrochloride +/- tetrathiomolybdate Chelates copper
31
Causes of foot drop
Most commonly - common peroneal nerve lesion
32
Tx of cerebral oedema in patients with brain tumours
Dex
33
Presentation of mercury poisoning
Visual field defects Hearing loss Paraesthesia High chloride Metabolic acidosis
34
Presentation of lead poisoning
Abdo pain Constipation Neuropsych Sx Blue gum margin
35
How does St John's Wort affect P450 system?
Inducer (decreasing levels of drugs such as warfarin, COCP etc.)
36
Onset of Sx in alcohol withdrawal
Sx from 6-12 hours Seizures from 36 hours Delirium tremens from 48-72 hours
37
Conversion of PO to SC/IV morphine
2:1 (half PO dose)
38
Treatment of ITP
Oral pred IV Ig is 2nd line / given in severe bleeding
39
Drug causes of liver cirrhosis
Methotrexate Methyldopa Amiodarone
40
Management of genital warts
Multiple, non-keratinised --> topical podophyllum Single, keratinised --> cryotherapy
41
Mx of Myaethenic crisis
Plasmapheresis or IV Ig
42
Presentation of myaethenia gravis
Muscle fatiguability Insufficient functioning acetylcholine receptors
43
Mx of Myasthenia Gravis
Long acting acetylcholinesterase inhibitors e.g. pyridostigmine +/- pred
44
Cause of CLL
Monoclonal proliferation of B-cell lymphocytes
45
Ix for CLL
Lymphocytosis, anaemia, thrombocytopenia Smudge cells on blood film Immunophenotyping is key
46
Tx of essential tremor
Propanolol Primidone if asthmatic
47
Presentation of acoustic neuroma / vestibular schwannomas
Vertigo Hearing loss Tinnitus Absent corneal reflex --> MRI of cerebellopontine angle
48
Mx of Meniere's disease
Acute - prochlorperazine Prevention - betahistine
49
Ix findings in dermatomyositis
Elevated CK ANA +ive 60% Anti-Mi-2 (highly specific, 20%) Tx - pred
50
Test prior to starting Azithromycin
ECG - to rule out prolonged QT LFTs
51
Secondary prevention of MI
Dual anti-platelet ACE-I BB Statin
52
What causes amiodarone to have a long half life
Extensive lipid binding resulting in extensive tissue distribution
53
Endocarditis pathogen associated with poor dental hygiene
Strep mitis (subtype of strep viridans)
54
Mx of stable angina
Bisoprolol (BB) or Amlodipine (CCB) for prevention (Aspirin and statin) GTN
55
ECG changes in hypokalaemia
In hypokalaemia, U have no Pot and no T, but a long PR and a long QT
56
Measure of QT interval
Start of Q to end of T
57
MOA of loop diuretics
Inhibits Na-K-CL co-transporter in the thick ascending limb of the loop of Henle
58
What does troponin T bind to?
Tropomyosin
59
main constituent of Pulmonary surfactant
main constituent is dipalmitoyl phosphatidylcholine (DPPC)
60
What condition is adenomatous polyposis coli gene (APC) associated with?
FAP Autosomal dominant Hundreds of polyps in the large intestine Increased risk of CRC
61
Which condition is DNA mismatch repair protein linked to?
Lynch syndrome Autosomal dominant Increased risk of CRC in proximal colon
62
Genotype of sickle cell disease
HbAS - trait. asymptomatic HbSC - moderate HbSS - severe disease
63
Presentation of methanol poisoning
Metabolic acidosis Reduced vision Poorly reactive pupils
64
Features of otosclerosis
Autosomal dominant Young adults Conductive deafness
65
Complications of polycythaemia rubra vera
Myelofibrosis, AML Tx with aspirin, venesection and hydroxyurea
66
Cause of slow-rising pulse
Aortic stenosis
67
Cause of collapsing pulse
aortic regurg PDA
68
Cause of pulsus alternans
Severe LVF
69
Causes of jerky pulses
HOCM
70
Which CCBs should not be used with betablockers
Verapamil or Diltiazam (Non-dihydropyridine CCBs)
71
Treatment of Patent ductus arteriosus in newborns
Ibuprofen Indomethacin
72
ECG changes seen in hypercalcaemia
Shortening of QT interval Prolonged PR Widened QRS ST elevation
73
Define cardiac syndrome X
Microvascular angina Normal ECG, normal coronary angiogram ST depression on exercise stress testing
74
How to determine 4th line management of HTN
K <4.5 --> spiro K >4.5 --> beta-blocker / alpha-blocker
75
Other cause of ejection systolic murmur
Atrial septal defects (louder on inspiration, fixed split S2)
76
Initial blind therapy in infective endocarditis
Amox +/- Gent Pen allergic --> Vanc + Gent Prosthetic valve --> Vanc, Rifampicin + Gent
77
Abx in IE due to staph (native vs prosthetic valve)
Native - Fluclox (Vanc + Rifampicin if pen allergic) Prosthetic - Fluclox + Rifampicin + Gent (Vanc + Rifampicin + Gent if pen allergic)
78
Abx Tx in fully sensitive strep
Benpen - add Gent if partially sensitive (Vanc + Gent if pen allergic)
79
Cause of bisferiens pulse
Mixed aortic valve disease
80
Recent MI + Persistent ST elevation + No CP
Left ventricular aneurysm - High risk of thrombus formation - Should receive anti-coag
81
Triad of cardiac tamponade
Falling BP Rising JVP Muffled heart sounds Beck's triad recognised complication of PCI
82
Causes of 'a' wave on JVP
Large due to raised atrial pressure e.g. tricuspid stenosis, pulmonary stenosis, pulmonary HTN
83
Causes of cannon 'a' waves on JVP
Atrial contractions against a closed tricuspid Complete heart block, ventricular tachycardias/ectopics, nodal rhythm, single chamber ventricular pacing
84
Features of severe aortic stenosis
Narrow pulse pressure Slow rising pulse Soft S2 Present S4
85
Cause of U waves
Hypokalaemia Due to delayed ventricular repolarisation
86
Cause of delta waves
WPW
87
ECG changes in pericarditis
PR depression - most specific for percarditis Saddle-shaped ST elevation
88
Which meds should be avoided in HOCM
ACE-inhibitors Nitrates Nifedipine/ Dihydropyridine CCB
89
Which blistering skin condition involves the mucosa
Pemphigus vulgaris
90
Tx of fungal nail infection
Mild - topical treatment (6 months fingernails, 9-12 months for toenails) Extensive - oral terbinafine (3-6 months)
91
What can exacerbate plaque psoriasis
Alcohol Ace-inhibitors, Beta-blockers and NSAIDs Lithium Anti-malarials
92
What is urticaria pigmentosa and what disease is it caused by
affected skin undergoes whealing upon rubbing due to systemic mastocystosis Diagnosis made by urinary histamine
93
Causes of eczema herpeticum
HSV 1 or 2 Coxsackie virus
94
Tx of lichen planus
Potent topical steroids
95
Which cancer and conditions are associated with Acanthosis nigricans
Gastric cancer T2DM, PCOS, Acromegaly, Cushing's, Hypothyroidism COCP
96
Tx of rosacea
Topical ivermectin Oral Doxy
97
Presentation of hereditary haemorrhagic telangiectasia
Autosomal dominant Epistaxis, Telangiectasia, AV malformations
98
Why does severe hyponatraemia cause confusion
Cerebral oedema
99
What happens if hyponatraemia is correctly too rapidly
Central pontine myelinolysis
100
Differentiating MODY vs LADA
Maturity onset diabetes of the young - autosomal dominant, slim individuals, polyuria, polydispia, recurrent balanitis --> Mx Sulphonylrureas Latent autoimmune diabetes of adults - overweight individuals
101
MOA mirabegron
Beta-3 agonist Used in urge incontinence
102
Tx of stress incontinence
Pelvic floor exercises Duloxetine +/- surgery
103
Tx of urge incontinence
Bladder retraining Oxybutynin 1st line Mirabegron Tolerodine
104
Liddle's syndrome
Rare autosomal dominant condition HTN + hypokalaemic alkalosis Tx - amiloride or triamterene
105
Which conditions cause hypercholesterolaemia (as opposed to hypertriglyceridaemia)
Nephrotic syndrome Cholestasis Hypothyroidism
106
Tx of infertility in PCOS
Clomifenere (or Metformin)
107
Sick euthyroid syndrome
Reversible state Abnormal thyroid function tests due to non-thyroidal illness No pre-existing thyroid issues TSH - normal, T4 and T3 - low
108
Most common cause of primary hyperaldosteronism (Con's)
Bilateral idiopathic adrenal hyperplasia (60-70% of cases) Adrenal adenoma (20-30% of cases) HTN + Hypokalaemia Mx - surgery or aldosterone antagonist e.g. spironolactone
109
Signs of congenital adrenal hyperplasia
Irregular menses, acne, hirsutism, early breast and pubic hair development, clitoromegaly and male-pattern baldness Due to 21-hydroxylase deficiency
110
Tx of gestational diabetes
Dx with FG >5.6 and 2hr >7.8 Fasting Glucose: < 7 - diet and exercise trial >7 - insulin 6-6.9 + foetal complication - insulin If after a couple of weeks of trial, FG remains >5.3 --> add metformin --> add insulin
111
Indications for hyperparathyroidism surgery
<50yrs old adj Calcium >0.25 above upper range eGFR <60 Renal stones Osteoporosis or # Symptomatic disease
112
Safe thyroid medications in pregnancy
1st trimester - propylthiouracil 2nd trimester - switch to carbimazole
113
Cancer assocaited with Hashimoto's thyroiditis
MALT (mucosa-assocaited lymphoid tissue) lymphoma Malignancy arises due to chronic inflammation of thyroid Presents as thyroid lump - USS and FNA
114
Presentation of anaplastic thyroid carcinoma
Rapidly enlarging neck mass + compression associated symptoms
115
Riedel's thyroiditis
Normal thyroid tissue is replaced with dense fibrotic tissue that extends beyond the thyroid capsule results in a hard woody thyroid gland and compression sx
116
Tx of diabetic neuropathy
Amitriptyline (avoid in BPH --> retention) Duloxetine Gabapentin Pregabalin
117
Which cardiac medication can cause gynaecomastia
Digoxin
118
Signs of pseudohypoparathyroidism
target cells insensitive to PTH Ass. w/ low IQ, short stature, shortened 4th and 5th metacarpals Low calcium, high phosphate, high PTH
119
Addison's disease
Primary hypoadrenalism Reduced cortisol and aldosterone
120
Side effects of radioiodine treatment
Worsening of thyroid eye disease
121
Bartter's syndrome
Polyuria and polydipsia Hypokalaemia Normotension Weakness Autosomal recessive - defect in Na-K-SCL co-transporter
122
Primary Ix for Con's
Plasma renin:aldosterone ratio (Results can be interfered with by any meds that involved RAAS e.g. ACE-i, ARBs, spiro) Causes include adrenal adenoma or bilateral adrenal hyperplasia
123
Mx of hypercalcaemia
IVF first to correct any dehydration Can use bisphosphonates once adequately hydrated Furosemide can sometimes play a role
124
Causes of Pseudohyperkalaemia
Haemolysis Myeloproliferative disorders e.g. thrombocytosis
125
Inheritance of familial hypercholesterolaemia
Heterozygous Autosomal dominant
126
Which type of thyroid cancer is associated with RET Oncogene
Medullary - associated with MEN2 Encodes a tyrosine kinase receptor
127
Define Impaired fasting glucose
Due to hepatic insulin resistance Fasting glucose 6-7
128
Define impaired glucose tolerance
Due to muscle insulin resistance Fasting glucose <7 + OGTT 2hr >7.8
129
Presentation of subacute thyroiditis
tender goitre hyperthyroidism raised ESR Technetium thyroid scan - globally reduced uptake (due to inflammation/destruction of thyroid tissue)
130
Kallman's syndrome
Pubertal delay and poor secondary sexual development Anosmia, cleft palate Low FSH, LH and testosterone --> hypogonadotropic hypogonadism X-linked inheritance
131
Klinefelter syndrome
Delayed pubertal development and small testes Raised FSH and LH but low testosterone --> Hypergonadotropic hypogonadism
132
Nuclear scintigraphy scan for toxic multinodular goitre
Patchy uptake
133
Causes of HTN + Hypokalaemia
Conn's syndrome (high aldosterone, low renin) Cushing's syndrome (high aldosterone, low renin) Liddle's syndrome (low aldosterone, low renin) 11-beta hydroxylase deficiency
134
Commonest types of inherited colon cancer
Hereditary non-polyposis CRC (5%) Familial adenomatous polyposis (<1%)
135
RF for eosinophilic oesophagitis
Dysphagia Young males Hx of allergies/eczema/asthma Initial Mx - dietary changes and steroids, if Sx not improving then dilatation
136
What deficiency causes haemochromotosis
HFE (the protein that regulates iron absorption) - autosomal recessive, chromosome 6 Presents with multi-system dysfunction e.g. DM, ED, HF, liver disease, arthritis, hypogonadism + TAN
137
Which deficiency causes Wilson's disease
ATP7B, autosomal recessive, chromosome 13 Usually presents with neurological disease, liver disease, Kayser-Fleischer rings, blue nails Tx - Penicillamine
138
Which deficiency causes Gilbert's disease
Glucuronyl transferase deficiency
139
Presentation of re-feeding syndrome
Symptoms mainly due to low phosphate (although low magnesium and potassium are often also present) Feeding causes reactive hyperinsulinaemia Results in low phosphate Leads to heart failure and skeletal muscle weakness
140
Associated conditions with PBC
Sjogrens (80%) RA Systemic sclerosis Thyroid disease
141
Treatment of recurrent C. Diff infections
Bezlotoxumab
142
Mx of SBP
IV Cefotaximine
143
Presentation of Peutz-Jegher's syndrome
Autosomal dominant Numerous hamartomatous polyps in the GI tract Pigmented freckles on the lips, face, palms and soles High risk of CRC
144
Vitamin supplementation required in gastric bypass patients
Iron Calcium (Absorbed in the duodenum)
145
Which vaccination should Coeliac disease patients receive?
Pneumococoal every 5 years Influenza every year Repeat Hep B vaccine once on a gluten free diet Coeliacs --> hyposplenism
146
Prophylaxis of variceal haemorrhage
Propanolol Endoscopic variceal band ligation Transjugular Intrahepatic Portosystemic Shunt
147
Indicators of severe pancreatitis
Age > 55 WCC >15 Calcium <2 Urea >16 LDH >600 Albumin <32 Glucose >10
148
Budd-Chiari syndrome
Hepatic vein thrombosis Causes: pregnancy, COCP, malignancy, polycythaemia Sx - sudden onset abdo pain, ascites and tender hepatomegaly Bloods - sig. raised ALT Dx - doppler US liver
149
Most common complication of ERCP
Acute pancreatitis
150
Presentation of Primary Biliary Cholangitis
Fatigue amd pruritus Cholestatic LFTs (ALP, GGT) Anti-mitochondrial antibody positive (M2) IgM Middle aged females Tx - ursodeoxycholic acid
151
Test/Signs of chronic pancreatitis
CT pancreas Shows calcification
152
How does C. Diff spread
Faecal-oral route Ingestion of spores
153
Signs of Whipples Disease
Chronic curable systemic bacterial infection Chronic diarrhoea +/- steatorrhoea Weight loss Arthralgia Lymphadenopathy Ophthalmoplegia - supranuclear gaze palsy
154
Sx of Still's disease
Fever Joint pain Salmon-coloured bumpy rash
155
Zollinger-Ellison Syndrome
Excessive gastrin secretion from tumour in duodenum or pancreas (increased hydrogen secretion from gastric parietal cells) Sx - multiple gastro/duodenal ulcers, diarrhoea and malabsorption Dx - fasting gastrin levels 30% of cases occur as part of MEN1
156
Carcinoid syndrome
Flushing Diarrhoea Bronchospasm Hypotension Right heart valvular stenosis Pellagra Ix - urinary 5-HIAA Mx - somatostatin analogue e.g. octreotide
157
Commonest bacteria in SBP
E. Coli
158
How is haemochromatosis monitored
Transferrin saturation and serum ferritin
159
Grading severity of UC
mild: < 4 stools/day, only a small amount of blood moderate: 4-6 stools/day, varying amounts of blood, no systemic upset severe: >6 bloody stools per day + features of systemic upset (pyrexia, tachycardia, anaemia, raised inflammatory markers)
160
Abx for liver abscess
Amox + Cipro + Metro (Cipro and Clinda if pen allergic)
161
BMI cut off for referral for bariatric surgery
BMI 35 + as well as RF (T2DM, HTN) BMI 40 + (if no RF)
162
Mx of ascites 2ndary to liver cirrhosis
Aldosterone antagonist e.g. spironolactone
163
Presentation of Cholangiocarcinoma
Palpable gallbladder + painless jaundice Raised CA 19-9 Anorexia and weight loss PSC is the main RF
164
Microscopic colitis
Chronic diarrhoea, mildly elevated faecal calprotectin and ESR Causes: PPIs Ix - colonoscopy and biopsy
165
Osteoarthritic and skin changes in haemochromatosis
Hook like osteophytes at the 2nd and 3rd digits of MCP joints Slate-grey appearance Monitor with transferrin saturation (and can test ferritin)
166
What need to be check with TTG levels
IgA
167
Presentation of schistosomiasis/ Katayama fever
fever myalgia cough diarrhoea urticarial rash hepatosplenomegaly Bloods - eosinophilia CXR - B/L pulmonary infiltrates Tx - Praziquantel
168
Presentation of leptospirosis
Transmitted through rat urine Sewage workers at risk Lower back pain, fever, myalgia, fatigue, jaundice and subconjunctival haemorrhage
169
Causes of bloody diarrhoea
Shigella Amoebic dysentery Enterohaemorrhagic E. Coli Possibly Campylobacter
170
Which HPV causes genital warts
HPV 6 and 11
171
Tx of Amoebiasis
7 days oral metronidazole or tinidazole (for invasive stage) Followed by 10 days Diloxanide (for cystic stage)
172
HIV
RNA retrovirus HIV 1 is more severe than HIV 2 Leads to depletion of T Cells Enters the cell via CD4 receptor
173
Tx for animal or human bites
Co-Amox
174
Jarisch-Herxheimer reaction
Seen following treatment of syphilis Thought to occur due to release of endotoxins Fever, rash, tachycardia Can give paracetamol if needed
175
Tuberculoid leprosy
Limited number of skin lesions Hyperaesthesia Hair loss
176
Most common organism found in central line infections
Staph epidermidis
177
Chest infection common in HIV patients
Pneumocystis jiroveci Pneumothorax is a common complications
178
Common causes of UTI in young SA women
E. Coli (gram-negative) Staphylococcus saprophyticus (gram positive, coagulase-negative)
179
Most common organism in animal bites
Generally polymicrobial Pasteurella mutocida
180
Tx of trichomonas vaginalis
Oral Metronidazole
181
Tx of gonorrhoea
IV Ceftriaxone
182
Presentation of yellow fever
Flu-like illness Brief remission Development of jaundice and haematemesis
183
Live attenuated vaccines
MMR BCG Yellow fever Oral - typhoid, polio, rotavirus
184
Mx of viral meningitis
Self-limiting Supportive care
185
Cause of rocky mountain spotted fever
Rickettsia ricketsii
186
Cause of endemic vs epidemic typhus
Endemic - Rickettsia typhi Epidemic - Rickettsia prowazekii
187
Hookworm presentation
Iron deficient anaemia Eosinophilia Rash Ix - stool sample for ova, cysts and parasites
188
Tx of severe campylobacter
Clarithromycin or azithromycin
189
Tx of toxoplasmosis
Only indicated in severe infections or immunocompromised patients 6 weeks of pyrimethamine and sulphadiazide
190
Common organism in human bites
Eikenella corrodens Strep spp. Staph aureus Fusobacterium Prevotella
191
Types of schistosomiasis infections
Schistosoma haematobium - bladder ca, calcification Schistosoma mansoni and japonicum - inhabit protal system --> hepatosplenomegaly, liver cirrhosis, cor pulmonale
192
Tx of gonorrhoea
IM Ceftriaxone
193
SE of tetracyclines
Photosensitivity
194
UTI in pregnancy
Oral Nitro (Trimethoprim CI)
195
Most severe complication of Chagas disease
Cardiomyopathy
196
Tx of aspergilloma
Surgical resection
197
What are the 4 variable use to calculate eGFR
Creatinine Age Gender Ethnicity
198
Nephropathy associated with malignancy
Membranous nephropathy
199
Indications for renal replacement therapy
Hyperkalaemia Metabolic acidosis Complications of uraemia e.g. pericarditis, encephalopathy Severe pulmonary oedema AND refractory to medical management of these conditions
200
Cause of nephrotic syndrome in HIV
Focal segmental glomerulosclerosis (FSGS)
201
Defect in Alport's syndrome
Type IV collagen
202
Causes of nephrogenic DI
Hypercalcaemia Hypokalaemia Lithium Demeclocycline Tubulo-interstitial disease - obstruction, sickle-cell, pyelonephritis
203
Sx of Haemolytic uraemic syndrome
Microangiopathic haemolytic anaemia Thrombocytopenia Renal impairment Typically 2ndary to GI infection Tx - eculizumab
204
Most common bacteria in peritonitis secondary to peritoneal dialysis
Coagulase negative staph Tx - Ceftazidime + Vanc added to dialysis fluid
205
Valve disease associated with ADPKD
Mitral valve prolapse
206
Extra-renal manifestations of ADPKD
Liver cysts Berry aneurysms Mitral valve prolapse/incompetence Aortic root dilation Aortic dissection
207
Anti-GBM disease
Small vessel vasculitis Pulmonary haemorrhage Rapidly progressive glomerulonephritis Anti-GBM antibodies against type IV collagen IgG deposit along basement membrane Raised transfer factor Mx - plasma exchange, steroids, cyclophosphamide
208
Differentiating Conn's from renal artery stenosis
Both low potassium and high aldosterone Conn's - low renin RAS - high renin (Bartter's is the same as RAS but pt is normotensive)
209
Most common cause of nephrotic syndrome in children
Minimal change disease
210
Tumour markers in testicular cancer
Seminomas - hCG Non-seminomas - AFP +/- hCG LDH is raised in approx. 40%
211
Features of fibromuscular dysplasia
Young female HTN Asymmetrical kidneys
212
Which glomerulonephritis is associated with SLE?
Diffuse proliferative GN
213
Why are patients will nephrotic syndrome predisposed to clots
Loss of anti-thrombin-III, protein C and S Rise in fibrinogen levels
214
Chromosome affected in ADPKD Type 1 vs 2
Type 1 - chromosome 16 (85% of cases) Type 2 - chromosome 4 (15% of cases)
215
Most common causes of nephrotic syndrome in adults
focal segmental glomerulosclerosis Membranous glomerulopathy
216
How to calculate anion-gap
(sodium + potassium) - (chloride + bicarb) Normal is 10-18
217
Causes of normal anion gap
prolonged diarrhoea uterosigmoidostomy fistula renal tubular acidosis acetazolamide addison's
218
causes of raised anion gap
lactate e.g. shock, sepsis and hypoxia ketones e.g. DKA, alcohol urate e.g. renal failure acid poisoning e.g. salicylates, methanol
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Conditions associated with IgA nephropathy
Alcoholic cirrhosis Coeliac disease HSP
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Presentation of IgA nephropathy
Macroscopic haematuria Young person Usually after an URTI
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Antibodies present in idiopathic membranous GN
Anti-phospholipase A2
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How does lithium cause Diabetes Insipidus
Desensitises the kidneys ability to respond to ADH
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Which glomerulonephritis is associated with heroin use
FSGN
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Prevention of stones (calcium, uric acid, oxalate)
Calcium stones - thiazide diuretics Uric acid stones - allopurinol, oral bicarb Oxalate - cholestyramine, pyridoxine
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Factors that may affect eGFR
Pregnancy Muscle mass Eating red meat prior to sample
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What is a staghorn calculus made of?
Struvite - magnesium ammonium phosphate
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Calciphylaxis
Complication of end-stage renal disease Necrotic, progressive skin ulcer, reticular pattern Painful
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Treatment of minimal change disease
Steroids
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Henoch-Schonlein purpura
IgA mediated Purpuric rash, abdo pain, polyarthritis Features of IgA nephropathy - haematuria, renal failure Biopsy - mesangial hypercellularity
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Signs of CMV infection
Often in immunocompromised patients Fever, deranged LFTs, leukopenia, thrombocytopenia Tx - ganciclovir
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Nephritic syndrome + URT signs
Granulomatous with polyangiitis Crescents on renal biopsy Ass. w/ cANCA (Anti-GBM presents with pulmonary haemorrhage)
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Which med is CI in absence seizures
Carbamazepine Ethosuximide is gold standard
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Which area of the brain causes expressive aphasia
Broca's area - inferior frontal gyrus, posterior/lateral frontal lobe
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Positive Rinnes test
air cond. > bone cond. normal or indicates SNHL
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Negative Rinnes test
air cond. < bone cond. Conductive HL
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Tx of Ramsay-Hunt
Oral aciclovir and corticosteroids
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Myotonic dystrophy
Ptosis, cataracts Dysarthria Distal weakness DM Heart block or caridomyopathy Dysphagia Autosomal dominant - presents around 20-30 years old
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Neurofibromatosis Type 1
Neurofibromas of the skin Cafe au lait spots Lisch nodules Optic gliomas
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Neurofibromatosis Tpye 2
Schwannomas Meningioma Acoustic neuromas - SNHL
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Sturge-Weber Syndrome
Developmental delay Port-wine stains Glaucoma Seizures
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Tuberous sclerosis
Angiofibromas and moles Development delay Epilepsy
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Von Hippel Lindau Syndrome
Patients develop multiple cysts and tumours Subarachnoid haemorrahge (2ndary to haemangiomas) Vitreous haemorrhage Phaeochromocytoma RCC Cysts in pancreas, liver and epididymis
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Which migraine med can cause acute angle closure glaucoma
Topiramate
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Stroke prophylaxis
Clopi +/- statin if appropriate
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Conjugate gaze palsy
Ipsilateral loss of adduction Contralateral abduction nystagmus Medial longitudinal fasciculus affected In paramedian area of midbrain and pons
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First line Tx of myoclonic seizures
Sodium valproate
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Miller-Fisher variant
Type of GBS Starts by affecting cranial nerves --> eye signs Usually preceded by an infection
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Normal pressure hydrocephalus
Urinary incontinence + Gait abnormality + Dementia 'Magnetic gait'
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Most common subtype of Motor Neuron Disease
Amyotrophic lateral sclerosis (50% of patients)
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Tx. of restless leg syndrome
Ropinorole - dopamine agonist
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Causes of raised lymphocytes in CFS
Viral/TB/Bacterial meningitis/encephalitis Lyme disease Behcet's disease SLE Lymphoma or leukaemia
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Lambert-Eaton Syndrome
Muscle weakness Improves with repetition Hyporeflexia Dry mouth, impotence and difficulty PU Antibodies against voltage gated calcium channels
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Ix for suspected SAH
CTH If NAD <6hrs - consider other Dx If NAD >6 - perform LP 12hrs after onset of Sx
254
Von Hippel-Lindau Syndrome
Episodic HTN Sweating ++HTN Phaeochromocytoma RCC
255
Myasthenia Gravis
Autoimmune - antibodies to Acetylcholine receptors Progressive weakening of muscles Diplopia Ptosis Dysphagia Mx - pyridostigmine
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Causes of gingival hyperplasia
Phenytoin Ciclosporin Calcium channel blockers AML
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Vessel damaged in extra-dural haemorrhage
Middle meningeal artery
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cluster headaches tx
Acute - SC sumatriptan + O2 Prevention - verapamil
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Eye sign in raised ICP
Down and out eye - CNIII palsy Occurs due to herniation
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Abx Mx of brain abscess
Cephalosporin Metronidazole
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Sx of GBS
Flaccid paralysis Hyporeflexia Tachycardia Urinary retention Nerve conduction studies - reduced velocity
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Cause of chorea
Damage to basal ganglia inc. caudate nucleus
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Sx of Creutzfeldt-Jakob disease
Rapid onset dementia Myoclonus
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Sign of HSV encephalitis
Temporal lobe changes on CTH
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Columns affected in subacute combined degeneration of the cord
Dorsal and lateral Dorsal - impaired proprioception and vibration sense Lateral - motor impairment (Anterior - pain, temp, coarse touch and pressure)
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Syringomyelia
collection of CSF within the spinal cord - cape-like loss of sensation to temp
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Weakness of intrinsic muscles of the hands
T1 lesion
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MRI signs of Wernicke's
Enhancement of the mamillary bodies