Cases book 3 Flashcards
Fatigue, malaise, hepatosplenomegaly, trunkal obesity, RUQ pain. Dx?
NASH
List risks of NASH
Obesity, T2DM, HTN, high cholesterol
Hx rapid weight loss / paraenteral nutrition
LACK OF HEAVY ALCOHOL USE
List Ix and results of NASH
LFTs (raised AST, ALT, BR, ALP, GGT)
FBC (low Hb and platelets)
Metabolic and lipid panel
PT and INR
What is gold standard for diagnosing NASH?
Liver biopsy and histology
List Mx of NASH in the absence of end stage liver disease
Diet and exercise
Insulin sensitiser and statin
List Mx of NASH + end stage liver disease
Liver transplant
Sore throat, fever, fatigue, headache, malaise, anorexia, sweating, abdo pain. Dx?
Infectious mononucleosis
List signs O/E of mono
Creamy exudates on tonsils
Palatal petichae
Splenomegaly
Pyrexia
Ix of mono
FBC, LFTs
Blood film
Paul Bunnel / monospot test
IgG EBNA
What does blood film in EBV show?
> 20% atypical lymphocytes
Mx of EBV?
Bed rest, paracetamol, NSAIDs
Steroids if severe
What happens if given amoxicillin / ampicillin while pt has EBV?
Maculopapular rash all over body
What must you advise EBV patient to do for the next 2 weeks?
Avoid contact sports - risk of splenic rupture
Non blanching rash is a specific Sx to what?
BACTERIAL meningitis
How do viral meningitis Sx compare to bacterial?
Viral arent as severe and dont progress as quickly
What must be done prior to LP in meningitis?
Exclude raised ICP - otherwise brainstem herniation
Cloudy CSF with high protein and low glucose. Dx?
Bacterial meningitis
What cell is predominant in bacterial meningitis?
Neutrophils
Clear CSF with high protein and normal glucose. Dx?
Viral meningitis
Fibrinous CSF with high protein and low glucose. Dx?
TB meningitis
What cell is predominant in viral / TB meningitis?
Lymphocytes
What is cor pulmonale?
RHF due to chronic pulmonary HTN
List 3 categories for causes of cor pulmonale. Give an example for each
Chronic lung disease - COPD
Pulmonary vascular disease - PE
Neuromuscular disease - MG
List signs O/E of cor pulmonale
Cyanosis, raised JVP, hepatomegaly, oedema
TR or PR murmurs
Name the types of systemic sclerosis
Pre-scleroderma
Diffuse cutaneous SS
Limited cutaneous SS
Scleroderma
Raynauds, skin changes, joint contracture, organ dysfunction. Dx?
Diffuse cutaneous SS
Raynauds, nail fold capillary changes, anti nuclear ABs. Dx?
Pre-scleroderma
List Sx of limited cutaneous SS?
CREST
- calcinosis
- raynauds
- oesophageal dysmotility
- sclerodactyly
- telangiectasia
List Sx of scleroderma
Internal organ disease, no skin changes
What AB is present in systemic sclerosis
anti nuclear AB
Haematuria and proteinuria 1-2 days after sore throat. Dx?
IgA nephropathy
Haematuria and proteinuria 1-3 weeks after sore throat. Dx?
Post strep GN
Haematuria and proteinuria. Raised urea and creatinine with oliguria. dx?
Rapidly progressive GN
Name 3 conditions that can cause rapidly progressive GN
Goodpastures
SLE
Vasculitides
Nephrotic syndrome in a child. Dx?
Minimal change disease
What causes minimal change disease?
GBM damage by T cells
Nephrotic syndrome in an Afro-Caribean HIV+ adult. Dx?
Focal segmented glomerular sclerosis
Nephrotic syndrome in an adult with cancer/infection/SLE. Dx?
Membranous glomerular disease
What is the most common cause of nephrotic syndrome in adults?
Membranous glomerular disease
Nephrotic syndrome with apple green birefringence on congo red stain. Dx?
Amyloidosis
Mx of SVT?
- Vagal maneouvres
- Adenosine + cardiac monitoring
- DC cardiovert if haemodynamically unstable
Mx of fast AF?
- Rate control - beta blockers / digoxin
- Rhythm control
a. ) <48hrs = DC cardiovert OR chemical cardiovert with flecanide or amiodarone
b. ) >48hrs = anticoagulate (LMWH then warfarin) then cardiovert after 3-4 weeks
Mx of VT in stable pt?
- IV amiodarone
- Look for and treat cause
- ICD
Mx of VT in unstable pt?
Defibrillate
List the stepwise Mx of T2DM
- Diet and lose weight
- Metformin
- Dual therapy (metormin + gliptin / thiazolidinediones / sulfonylureas / gliflozins)
- Triple therapy (metformin + sulfonylureas + thiazolidinediones / gliptins)
What can be given if metformin is contraindicated?
Gliptin / sulfonylureas / thoazolidinediones
Which drug reduces peripheral insulin resistance?
Thiazolidinediones
Which drug stimulates beta cells to release insulin?
Sulfonylureas
Which drug is a biguanide that increases cell sensitivity to insulin?
Metformin
Which drug inhibits DPP-4 to increase insulin secretion and decrease glucagon?
Gliptins
Side effects of metformin?
N&V, stomach ache, decreased appetite, metallic taste in mouth
Side effects of sulfonylureas?
HYPOGLYCAEMIA
Abdo pain, diarrhoea, nausea
Side effects of thiazolidinediones?
Fractures, infections, numbness, change in vision, increased weight
Side effects of gliptins?
Headache
List cardiac causes of clubbing
Congenital cyanotic heart disease
Atrial myxoma
Bacterial endocarditis
Tetralogy of fallot
List resp causes of clubbing
Lung cancer Empyema Interstitial lung disease Bronchiectasis CF
List gastro causes of clubbing
IBD
Cirrhosis
GI lymphoma
Coeliac / chronic malabsorption
List other causes of clubbing
Thyrotoxicosis or hereditary
Define AKI
Acute decline in kidney function leading to raised creatinine and low urine output
List pre renal causes of AKI
Hypovolaemia, low BP, renal artery stenosis, sepsis
List renal causes of AKI
GN, vasculitides, acute interstitial nephritis, acute tubular necrosis
List post renal causes of AKI
Renal calculi, strictures, pelvic cancer, BPH
List Sx / signs of AKI
Metabolic acidosis Oliguria Hyperkalaemia Uraemia HTN Anaemia Secondary hyperparathyroidism
List Ix of AKI
Metabolic screen (urea, creatinine, LFTs) FBC U&Es (K) Urinalysis ECG CXR
List the 4 steps in AKI Mx
- Protect against hyperkalaemia
- Optimise fluid balance
- Stop nephrotoxic drugs
- Assess dialysis need
List nephrotoxic drugs
ACEi, NSAIDs, gentamicin
NOT BETA BLOCKERS
List indications for dialysis in AKI
Refractory pulmonary oedema Persistent hyperkalaemia Severe metabolic acidosis Uraemia Overdose
List Sx of amyloidosis
Nephrotic syndrome, renal failure
Restrictive cardiomyopathy, HF, arrhytmia, angina
Neuropathy (inc autonomic), carpel tunnel
Waxy skin, brusining, perioribtal purpura
Shoulder pain, arthritis
Factor X deficiency (bleeding)
List Ix and results of amyloidosis
Tissue biopsy for congo red stain (apple green birefringance)
Urine dip (++ protein)
CRP, ESR, U&Es, LFTs, Ig levels
What inheritance pattern in neurofibromatosis?
Autosomal dominant
Sx of type 1 neurofibromatosis?
Peripheral and spinal neurofibromas Cafe au lait spots Axillary freckling Optic nerve glaucoma Phaeochromocytoma Skeletal deformities Renal artery stenosis
Sx of type 2 neurofibromatosis?
Bilaterl acoustic neuromas Gliomas Cataracts (All schwanomas) Hearing loss, tinnitus, change in balance, headache
Which chromosomes are affected in neurofibromatosis?
1 = chr 17 2 = chr 22
Which condition is associated with neurofibromatosis type 1?
SAH
What are erythema nodosum?
Inflammation of sub cut fat
Describe apperance of erythema nodosum
Red/purple domed nodules on shin /thighs
Tender and warm
Systemic Sx
List causes of erythema nodosum
LOST BUSH Leprosy / leukaemia OCP / preg Sacroidosis / sulfonamides TB / toxoplasmosis Behcets UC / CD Salmonella / strep Histoplasmosis
List causes of acute pancreatitis
I GET SMASHED Idiopathic Gallstones Ethanol Trauma Steroids Mumps Autoimmune Scorpion bite Hypercalcaemia / hypothermia / hypertriglyceridaemia ERCP Drugs - azothrioprine / sodium valproate
Sx / signs of acute pancreatitis
Severe epigastric pain, radiating to back, relieved on sitting forward
N&V
High HR/RR
Grey Turners / Cullens
List Ix for acute pancreatitis with results
Amylase / lipase (raised)
FBC (raised WCC), BGC (raised), U&Es, LFTs, CRP
ABG
Abdo USS or erect CXR or AXR or CT
What score is used to assess severity in pancreatitis?
Modified Glasgow
List Mx of acute pancreatitis
Fluids, electrolytes Analgesia Catheter ERCP Complications & Mx
List complications of acute pancreatitis
Necrosis, pseudocyst, abcess, ascites, low Ca, psueodaneurysm, VTE, sepsis, DM, chronic pancreatitis
Define chronic pancreatitis
Chronic inflammation of the pancreas with irreversible parenchymal atrophy and fibrosis leading to impaired end/exocrine function
What are the 2 main causes of chronic pancreatitis?
Alcohol (70%)
Idiopathic (20%)
List PC of chronic pancreatitis
Recurrent severe epigastric pain, radiating to back
Worse with alcohol or food
Weight loss, bloating, steatorrhoea
List Ix and results for chronic pancreatitis
BGC (raised), amylase (NORMAL), IgG4 (raised) Faecal elastase (LOW) USS abdo ERCP CT
List Mx for chronic pancreatitis
Sx relief - diet changes, avoid alcohol, DM Mx, enzyme replacement
Surgery - Whipples / drainage / resection
List complications of chronic pancreatitis
Pseudocyst, strictures, obstruction, ascites, carcinoma
DM, low QoL, pain
List causes of pancreatic carcinoma
Largely unknown
Some familial - MEN / BRCA2 / Peutz-Jeghers
List risks of developing pancreatic cancer
Male, 60-80y/o
List Sx of pancreatic cancer
Non specific - anorexia, weight loss, malaise
Later - jaundice, epigastric pain
What is the classic finding O/E of jaundice?
COURVOISIERS LAW V- painless, palpable gall bladder in jaundiced patient
Where in the pancreas are cancers most common?
Head/neck
What type of cancer of the pancreas is most common?
Adenocarcinoma
Where does pancreatic cancer spread to?
Locally - to liver
List Ix for pancreatic cancer
CA 19-9
LFTs
USS + FNA
CT / ERCP
What is Whipples procedure?
Removal of pancreas and duodenum
What is the prognosis of pancreatic cancer?
Less than 5% 5 year survival
4-6 months median survival post diagnosis
What is hydrocephalus?
Enlargement of cerebral ventricular system
Which type of hydrocephalus has raised ICP?
Obstructive
What is obstructive hydrocephalus?
Impaired outflow of CSF from ventricles
What is non obstructive hydrocephalus?
Impaired CSF resorption in subarachnoid villi, but with NORMAL ICP
What causes obstructive vs non obstructive hydrocephalus?
Obstructive = 3rdV/4thV/aqueduct lesion or aqueduct stenosis
Non Ob = tumour, TB, meningitis
What is normal pressure hydrocephalus?
A type of non obstructive hydrocephalus where there is chronic ventricular enlargement
List risks of hydrocephalus in young / old people
Young = congenital or tumours Old = stroke or tumours
List signs of obstructive hydrocephalus
Low GSC or LOC
Diplopia
Papilloedema
CN 6 palsy
List signs of non obstructive hydrocephalus
Chronic cognitive decline, falls, urinary incontinence, shuffling gait, hyperreflexia
Which type of hydrocephalus is chronic / acute?
Obstructive = acute
Non obstructive = chronic
List Ix for hydrocephalus
CT head
LP / ventricular drain to remove CSF - MC&S
When can you NOT do an LP in hydrocephalus?
Obstructive - raised ICP therefore will get brainstem herniation
List risks of developing ascending cholangitis
> 50y/o
Hx gallstones / PSC / strictures / biliary surgery
List Sx of ascending cholangitis
CHARCOTS TRIAD
- RUQ pain, fever, jaundice
Pale stool, pruritus
List Ix for ascending cholangitis
FBC, urea/creatinine, LFTs
ABG
Abdo USS
ERCP
Which Ix is gold standard for ascending cholangitis?
ERCP
List acute Mx for ascending cholangitis
NBM
IV ABx, fluids, analgesia
ERCP
What is the definitive Mx for ascending cholangitis?
Elective lap chole
Define heart failure
Inability of CO to meet body’s demands despite normal venous pressures
How can heart failure be categorised?
High vs low output
Left vs right
List causes of low output left heart failure
IHD, HTN, cardiomyopathy, aortic or mitral valve problems
List causes of low output right heart failure
Secondary to LHF, MI, pulmonary HTN, PE, lung conditions, constrictive pericarditis
List causes of low output heart failure that can affect both sides
Arrhythmia, cardiomyopathy, drugs, toxicity
List causes of high output heart failure
Anaemia, pregnancy, Paget’s, hyperthyroidism, AV malformation
List signs of LHF
High HR, high RR Bibasal creps Displaced apex beat S3 Mitral regurgitation Orthopnoea Paroxysmal nocturnal dyspnoea
List signs of acute LHF
Tachypnoea, cyanosis, pulses alternans, S3&S4, wheeze, fine crackles
List signs of right heart failure
Raised JVP Hepatomegaly Ascites Pitting oedema Tricuspid regurgitation
List Ix of acute LHF
ABG, troponin, BNP
List Ix of heart failure
BLOODS: FBC, U&Es, LFTs, CRP, BGC, TFTs, lipids
CXR
ECG
Echo
List CXR signs of LHF
Alveolar oedema Kerly B lines Cardiomegaly Upper lobe diversion Pleural effusions
List immediate complications of acute LHF
Cardiogenic shock
Pulmonary oedema
List Mx for pulmonary oedema secondary to LHF
Sit UP High flow O2 Diamorphine GTN IV furosemide
List Mx of cariogenic shock secondary to LHF
ITU for inotropes
List Mx for chronic heart failure
ACEi Beta blocker Loop diuretics Aldosterone antagonist ARB Digoxin \+/- ICD
Why do you give ACEi in chronic heart failure?
Inhibit RAAS which can worsen hypertrophy
Aids survival
Why do you give beta blockers in chronic heart failure?
Slow progression of disease and aid survival
Block effects of chronic SNS activation
Why do you give ARB in chronic heart failure?
If beta blockers and ACEi aren’t enough
Which drug do you give in heart failure does not improve survival?
Digoxin
Which drugs should you avoid in chronic HF?
CCB and NSAIDs
What causes Wernickes?
Thiamine deficiency resulting in biochemical changes to CNS
List risks of developing Wernickes?
Alcoholics or chronic malnourishment
List triad of Sx for Wernickes
Opthalmoplegia
Ataxia
Confusion
List other Sx you can get as part of Wernickes
Memory loss, hallucinations, abnormal reflexes, hypothermia, low BP, weakness
List Ix and Mx of Wernickes
Ix = clinical as its a medical emergency Mx = IV thiamine
List consequences of Wernickes
Korsakoffs
Ix for Addisons?
- 9am cortisol
- short synacthen test
- long synacthen test / anti 21-hydroxylase / CT to find cause
What are the results of the Ix for Addisons?
- 9am cortisol <100
2. short synacthen test <550
List Ix and results for congenital adrenal hyperplasia
- 9am follicular phase 17OH progesterone (raised)
List screening Ix for Conns
Serum K, Na
Urine K
Plasma aldosterone: renin ratio
List positive result for Conns screening Ix
Serum K (low) Serum Na (normal) Urine K (high) Plasma aldosterone: renin ratio (high)
List Ix and positive result for diagnosing Conns
Salt load (failure to suppress aldosterone) CT adrenals
List Ix for Cushings
- Serum K and BGC
- 24hrs urinary free cortisol
- Low dose dexamethasone suppression test
- Plasma ACTH
List positive results for Cushings Ix
- Serum K and BGC –> low K, high BGC
- 24hrs urinary free cortisol –> high
- Low dose dexamethasone suppression test –> high cortisol still
- Plasma ACTH (low)
What is high dose dexamethasone suppression test for?
Adrenal adenoma (Cushings disease) vs Cushing syndrome
List Ix for phaeo
- 24hr urine cathecholamines / metanephrines
2. CT adrenals
List Ix for Carcinoid syndrome
- 24hr urine 5-HIAA
- Plasma chomagraffin A&B
- CT / radioisotope
List Ix for acromegaly
- Serum IGF1
2. OGTT
List Ix for DI
- Urine and plasma osmolality
- Water deprivation test (to diagnose)
- High dose desmopresin (cranial vs nephrogenic)
Flank pain, myalgia, flu like Sx, fever, N&V, LUT Sx. Dx?
Pyelonephritis
List risks of developing pyelonephritis
PMH UTIs DM Stress incontinence Pregnancy Immunosuppression Anatomical abnormality
List Ix for pyelonephritis
Urinalysis
Urine MC&S
FBC, CRP, ESR, U&Es, creatinine
Renal USS if ? stones
What would urinalysis results of pyelonephritis be?
++ leukocytes ++ nitrites ++ blood
List Mx of pyelonephritis
IV ABx - cephalexin
Analgesia
What is the inheritance pattern of MEN?
Autosomal dominant
List disease that form MEN I
Parathyroid adenoma
Pancreatic islet cell tumour
Pituitary adenoma
List diseases that form MEN 2a
Parathyroid adenoma
Thyroid medullary carcinoma
Phaeochromocytoma
List diseases that form MEN 2b
MEN 2a
+ multiple mucosal neuromas of GIT
+ Marfanoid phenotype
What is aplastic anaemia?
Pancytopenia and hypo plastic marrow
Who gets G6PD deficiency?
Mediterranean patients
What precipitates an oxidative crisis in G6PD deficiency?
Flava beans
Drugs
What is the pathophysiology of G6PD deficiency?
Low G6PD —> low NADPH –> low glutathione –> RBCs exposed to oxidative stress
List Sx of G6PD deficiency
Jaundice, anaemia
What is seen on blood film of G6PD deficiency?
Heinz bodies
Positive Coombs test. Dx?
Autoimmmune haemolytic anaemia
What does the Coombs test show?
ABs to RBCs
What is seen on blood film of autoimmune haemolytic anaemia?
Spherocytes