Revision Questions Flashcards
What drug is used to treat gout and what class of drug is it?
Allopurinol - Xanthine oxidase inhibitor
How does SLE present?
Discoid rash, oral ulcers, photosensitivity, arthritis, anti-dsDNA
How is rheumatoid arthritis diagnosed?
Anaemia, raised CRP/ESR, platelets
Rheumatoid factor
Anti-CCP +ve (anti-cyclic citrullinated peptide), ANA +ve (antinuclear antibodies)
X-ray: soft tissue swelling, reduced joint space, bony erosions
USS/MRI synovitis
What does rituximab inhibit?
CD 20 receptors on the surface of activated B cells
What does toclizumab inhibit?
IL-6
What does infliximab inhibit?
TNF-alpha
What organisms can cause UTIs?
E.coli, Klebsiella, S.aureus, Enterococcus
What drug is used to treat uncomplicated lower tract UTIs?
Trimethoprim
What drug is used to treat uncomplicated upper tract UTIs?
Co-amoxiclav (broad spectrum antibiotics)
What hormone is tested for in the diagnosis of testicular carcinoma?
betahCG (human chorionic gonadotrophin)
How are renal stones diagnosed and managed?
Urine dipstick: haematuria
KUBXR
NCCTKUB (non-contrast computerised tomography)
IV diclofenac for pain, cefuroxime, medical expulsion therapy, percutaneous nephrolithotomy
What are some differentials for renal colic?
Ruptured AAA, diverticulitis, appendicitis, testicular torsion
How can renal stones be prevented?
Drink 2-3L/day water, diet low in sodium, fat and protein, reduce oxalate rich food
Recurrent calcium stones/ hypercalciuria - thiazide diuretic
What are the 3 cardinal signs of nephritic syndrome?
Hypertension, haematuria, proteinuria
What are the 3 cardinal signs of nephrotic syndrome?
Proteinuria, oedema, hypoalbuminaemia
What 3 criteria are used to diagnose AKI?
Creatinine rise >26micromol/L in 48 hrs
Creatinine rise >50% in 7 days
Urine output <0.5ml/kg/hr for >6 hrs
What are the risk factors for AKI?
Sepsis, >75, diabetes, cardiac failure
What are the symptoms of AKI?
Oliguria, nausea, vomiting, confusion, increased heart rate
How does hyperkalaemia present on an ECG?
Tall T waves, small P waves, prolonged QRS
How is AKI diagnosed?
Bloods: serum creatinine
NCCT-KUB
Urinalysis: infective organisms
How is AKI managed?
Stop nephrotoxic drugs
IV fluid, abx for sepsis
How is non-urgent and acute hyperkalaemia (medical emergency) managed?
Non-urgent - polystyrene sulphonate resin = binds K+ in gut, decreasing uptake
Acute:
Calcium gluconate = decreases VFib risk in heart
Insulin + dextrose = drives K+ into cells
Salbutamol nebulised
Calcium resonium
How is CKD diagnosed?
Low GFR (<90ml/min/1.73m2), Raised albumin:creatinine ratio, urine dipstick: haematuria/ proteinuria, USS U+E's: raised urea and creatinine, low calcium, raised PTH, raised phosphate and potassium, raised renin Renal biopsy
What causes CKD?
HTN, diabetic nephropathy, AKI, PKD, NSAIDs
What does GGT stand for and when is it raised?
Gamma-glutamyl transpeptidase
Raised in alcoholic liver disease
What does ALP stand for and when is it raised?
Alkaline phosphatase
Raised in biliary tree damage or in diseases that cause bone resorption e.g. metastases
What do AST/ALT stand for and when are they raised?
Aspartate transaminase/ Alanine aminotransferase
Raised in hepatocyte damage
What drug is used to treat chronic Hep B?
Pegylated interferon-alpha 2a (stimulates immune response)
What drug is used to treat chronic Hep C?
Antivirals - ribavirin
What drug helps remove excess iron in haemochromatosis and beta thalassaemia major?
Desferrioxamine
What is the pathophysiology behind portal hypertension?
Endothelin-1 production is increased in cirrhosis which increases vasoconstriction.
NO production decreases in cirrhosis which decreases vasodilation.
There is now a reduced radius, increasing the resistance and leading to a higher portal pressure in the portal system
What are the causes of portal hypertension?
Pre-hepatic: Portal vein thrombosis
Intra-hepatic: Sarcoidosis, primary biliary cirrhosis, Budd-Chiari syndrome, cirrhosis
Post-hepatic: constrictive pericarditis, IVC obstruction, RHF
What is the treatment for oesophageal varices?
Beta-blockers - reduce CO, reduce portal pressure
Nitrates reduce portal pressure
Terlipressin - reduce portal pressure
Surgical: Endoscopic banding
What are some causes of ascites due to transudate?
Cirrhosis, portal vein thrombosis, constrictive pericarditis, Budd-Chiari syndrome
What are some causes of ascites due to exudate?
Inflammation (increased vascular permeability), malignancy, infections, pancreatitis
What is the treatment of spontaneous bacterial peritonitis (complication of ascites with cirrhosis)?
Cefotaxime
What is the tumour marker?
Raised AFP - alpha-fetoprotein
What antibody is tested for primary biliary cirrhosis?
Anti-mitochondrial antibody
What antibody is tested for primary sclerosing cholangitis?
Anti-nuclear cytoplasmic antibodies
What are the features of Charcot’s Triad and Reynold’s pentad?
Charcot’s - fever, RUQ pain, jaundice
Reynold’s - hypotension, confusion
Presentation of Ascending cholangitis
What are the signs of late stage acute pancreatitis?
Grey-Turner’s sign - bruising flanks
Cullen’s sign - bruising around umbilicus
What score is used to measure the severity of LUTS?
International prostate scoring system
What are the macroscopic signs of Crohn’s disease?
Thickened and narrowed bowel, cobblestone appearance, deep ulcers in the mucosa, skip lesions, fistulae
How would a lumbar puncture CSF sample appear a.) 2 hours b.) 15 hours after a subdural haematoma?
a.) bloody b.) xanthochromic (yellow)
What chromosome is the causative mutation for Huntington’s found on and what is the trinucleotide repeat?
Chromosome 4
CAG
What is the term used to describe when an inherited disorder appears earlier in each generation?
Anticipation
What are the signs of a life-threatening asthma attack?
Exhaustion, bradycardia, peak flow <33%, silent chest, cyanosis, PaO2 <8kPa, severe SOB, low oxygen sats, audible wheeze, tachypnoea
What is the gold standard diagnostic test for DVT/ PE?
CT pulmonary angiography
Name one thing you’d see on an ECG of someone with a PE?
Sinus tachycardia
What are the causative organisms of reactive arthritis?
Campylobacter, shigella, salmonella
What drugs can cause hyperuricaemia?
Thiazide diuretics, NSAIDs (many more)
e.g. bendroflumethiazide, furosemide, aspirin
What is the diagnostic blood test for heart failure?
Brain natriuretic peptide
What are the radiographic signs of heart failure?
Alveolar oedema, Kerley B lines, Cardiomegaly, Dilated upper lobe vessels, pleural Effusion
(ABCDE)
What murmur would be heard in aortic stenosis and where would you hear it?
Ejection systolic murmur
Right sternal edge, 2nd intercostal space
What are the side effects of long term steroid use?
Weight gain, osteoporosis, immunosuppression, oedema, effects growth, hypokalaemia, hypertension
Name an example of a proton pump inhibitor
Omeprazole
What antibodies are tested for in coeliac’s disease?
IgA Tissue transglutaminase, IgA Anti-Endomysial
What is tumour lysis syndrome and how is it managed?
Complication of cancer treatment - large amounts of tumor cells are killed off (lysed) at the same time by the treatment, releasing their contents into the bloodstream.
Replacement of electrolyte balance and IV fluids
What are the 2 diagnostic features of febrile neutropenia?
Temp >38C, absolute neutrophil count <1
What is Kernig’s sign and what condition is it a sign for?
Not being able to extend the knee when hip is flexed at 90degrees
Meningitis
What diagnostic tests would you do for a patient you suspect has meningitis?
Lumbar puncture, FBC, WBC count, GCS, Head CT, Throat swabs, Pneumococcal and Meningococcal PCR
How do you treat bacterial meningitis?
Urgent antibiotics, IV cefotaxime, consider amoxillicin if immunocompromised (listeria cover)
What are the features of Parkinson’s?
Shuffling gait, resting tremor, bradykinesia, increased tone, stooped posture, decreased arm swing
What specific part of the brain does Parkinson’s affect and which neurotransmitter?
Loss of dopamine in the substantia nigra of the pars compacta
What are the red flag symptoms for headaches?
New headache with Hx of cancer, cluster headache, seizure, altered consciousness/memory/ confusion, papilloedema
What drug decreases ICP?
MANNITOL
What are the complications of DM separated into microvascular/ macrovascular?
Micro - retinopathy, neuropathy
Macro - CVD, cerebrovascular disease, peripheral artery disease
What thyroid autoantibodies are tested for in hyperthyroidism?
Thyroglobulin and anti-thyroid peroxidase antibodies
How is hyperthyroidism treated?
Carbimazole, beta blockers e.g. propranolol, radioiodine therapy, thyroidectomy
What are the side effects fo ACEi?
Dry cough, headache, diarrhoea
How do STEMIs present on an ECG over a few hours then a few days?
Hours: Tall T waves, ST elevation
Days: T wave inversion, pathological Q waves
What are the 3 cardinal symptoms of heart failure?
SOB
Fatigue
Peripheral oedema
What condition is characterised with a concave-upwards (saddle-shaped) ST elevation?
Pericarditis
How does atrial fibrillation present on an ECG?
F waves, no P waves, QRS irregularly irregular
What are the clinical features of aortic dissection?
Sudden tearing chest pain, may radiate to the back Unequal arm pulses and BP Acute limb ischaemia Paraplegia Anuria