FINALS Flashcards

1
Q

MI complication differentials, Px + Mx. Acute HF, cardiogenic shock, pericarditis, LV wall rupture + aneurysm, ventricular septal rupture, papillary muscle rupture

A

Acute HF: no shock = acute LV failure, cardiac tamponade = LV free wall rupture, pansystolic murmur = ventricular septal defect, systolic murmur = papillary muscle / mitral regurgitation
After 2w = LV aneurysm

Cardiogenic shock: LV infarction leading to pump failure (within hours), hypotension, tachycardia, cold peripheries + oliguria, raised JVP + pulmonary oedema; inotropes (noradrenaline, dobutamine), urgent revascularisation

Acute LV failure + pulmonary oedema: absence of shock, first 48h, dyspnea, bibasal crackles, pink frothy sputum, S3 gallop; oxygen +/- NIV, IV furosemide, GTN unless hypotensive

Pericarditis: common for transmural MI within first 48h (10%) - typical Px. Dresslers: AI pathology, 2-6w following, fever, pleuritic pain, pericardial effusion; raised ESR + treat with NSAIDs, colchicine prophylaxis

LV free wall rupture: acute HF secondary to cardiac tamponade; raised JVP, pulsus paradoxus, hypotension + shock, 1-2w; emergency pericardiocentesis, surgery

LV aneurysm: LV failure, persistent ST elevation > 2w following, risk of embolism + stroke; anticoagulation +/- surgery

Ventricular septal rupture (L-R shunt): acute HF, loud pansystolic murmur, first week; urgent surgical repair

Papillary muscle rupture - acute mitral regurgitation (inferior / posterior): acute HF + pulmonary edema, systolic murmur at apex; vasodilators, emergency valve surgery

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2
Q

How to differentiate between types of AKI

A

Urinary + serum sodium / urea + creatinine / osmolality, response to fluid bolus
Pre (perceives as needing to retain water / Na / urea): urine Na < 20, FeNa < 1%, Fe urea < 35%. Good response to fluid bolus
Intrinsic (damage prevents reabsorption): urine Na > 30, FeNa > 1%, Fe urea > 35%. No response to fluid bolus

Renal US: normal = intrinsic, abnormal = post (large = hydronephrosis, bilateral small = CKD)

Urinalysis (intrinsic): renal tubular cells / casts - acute tubular necrosis; eosinophils / WC casts - acute interstitial nephritis; RBC casts / proteinuria - glomerulonephritis / vasculitis / myeloma

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3
Q

Intrinsic AKI differentials, Px, Ix, Mx

A

Acute tubular necrosis: cause (hypotension / ischaemia / fluid depletion / nephrotoxins), AKI (acute), hypotension, tachycardia
Ischaemia / toxins cause tubular cell death, forms casts and obstruct tubules
Ix: AKI, urea:creatinine > 10:1, urinary sodium >40, brown muddy casts
Mx: supportive (fluids, stop nephrotoxic drugs, treat cause); severe acidosis / hyperkalaemia / uraemia - haemodialysis / renal replacement therapy

Acute interstitial nephritis: AKI (days / weeks), oliguria; systemic - fever, rash, arthralgia, eosinophilia, myalgia, pulmonary infiltrates / effusion
Immune mediated (type IV hypersensitivity) with a trigger: drugs (antibiotics (penicillins, cephalosporins), NSAIDs, PPI), infection, systemic disease
Tubular injury: low proteinuria, sterile pyuria (leukocytes), eosinophiluria
Ix: bloods: anaemia, leukocytosis, AKI; urinalysis: proteinuria / haematuria, white cell casts, eosinophils
Mx: find and stop cause, fluids + monitor electrolytes / urea, pred in severe, dialysis

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4
Q

Immune Nephritis differentials, Px, Ix, Mx

A

IgA nephropathy: recurrent macroscopic haematuria, recent (2d) mucosal infections (URTI, gastroenteritis)
Pathophysiology not fully understood, mesangial deposition of IgA immune complexes (overlap with HSP)
Ix: urinalysis (haematuria, small proteinuria, raised complement levels), biopsy for diagnosis
Mx: regular BP + renal function monitoring, ACE / ARB (BP control, proteinuria reduction), steroids for rapidly progressive / severe

Post streptococcal glomerulonephritis: GAS infection (1-3w post pharyngitis, 3-6w post skin), acute nephritic syndrome (oedema, hypertension, gross haematuria - dark urine), oliguria
Immune response to GAS, antigens in glomerular membrane, antibodies form complexes - complement activation and inflammation
Ix: urinalysis (haematuria + dysmorphic RBC +/- RBC casts, mild proteinuria), renal biopsy definitive, GAS antibodies can be helpful
Mx: no specific cure, monitor BP + renal function, loop diuretics, ACE for BP if needed, antibiotics if infection still present

(Lupus nephritis: proteinuria, renal dysfunction, HTN, oedema, haematuria
Severe manifestation of SLE, immune complex deposition
Ix: urinalysis (protein, dysmorphic RBC + casts)
Mx: ACE / ARB, steroids +/- azathioprine / cyclophosphamide)

Also anti-GBM, TTP, ANCA

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5
Q

How to differentiate between types of jaundice

A

Px: change to urine / stools + pruritus (post, maybe hepatic), hepatomegaly / signs of liver disease (hepatic), pain (hepatic, post), bruising / splenomegaly (pre)
Painless classically pancreatic cancer
Ix: LFTs (pre isolated bilirubin, ALT / AST hepatic, ALP / GGT post), urine (bilirubin absent in pre, urobilinogen much higher in pre + usually absent in post), coagulation (usually only affected in hepatic)

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6
Q

Types of jaundice, differentiating Px + Ix, common causes

A

Prehepatic - unconjugated (no dark urine / pale stools), hemolysis or impaired bilirubin uptake
Normal LFTs, anaemia / haemolysis (splenomegaly, reticulocytosis), raised urobilinogen, no bilirubin in urine. Blood film + FBC
AI haemolytic anaemia (SLE), hereditary spherocytosis, G6PD, sickle cell, thalassaemia, Gilbert’s

Hepatic - mixed un / conjugated, damage to liver cells, impaired conjugation, uptake or secretion
ALT + AST elevated, bilirubin in urine, urobilinogen variable; usually systemic upset. Biopy
Viral hepatitis, alcohol associated liver disease, metabolic dysfunction associated steatotic liver disease / metabolic associated steatohepatitis, drug induced liver injury, AI hepatitis, hereditary, PBC

Posthepatic - conjugated (water soluble) (dark urine and pale stools, pruritus), blockage of bile flow leading to accumulation
ALP + GGT > ALT + AST, bilirubin present in urine, urobilinogen reduced, dilated ducts / evidence of obstruction. US / MRCP
Gallstones, pancreatic head cancer, cholangiocarcinoma, PSC

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7
Q

Sudden vision loss Px, fundoscopy, Mx

A

Central retinal artery occlusion: onset in seconds, painless, no prior changes, RAPD. Atherosclerosis + RF. Fundoscopy: cherry red spot, white ischaemic retinal areas
Ocular massage, intra arterial urokinase, IV acetazolamide / paracentesis (steroids if temporal A)
Most commonly due to carotid atherosclerosis - carotid US, sometime temporal arteritis

Central retinal vein occlusion: onset in seconds, painless, no prior changes, RAPD. Fundoscopy: macular oedema + optic nerve head oedema, flame haemorrhages (looks like pizza), cotton wool spots, venous tortuosity
Ischaemia / neovascularisation - urgent panretinal photocoagulation; intravitreal anti-VEGF

Anterior ischaemic optic neuropathy (temporal arteritis): subacute / sudden painless, temporal arteritis (headache), RAPD. Fundoscopy: swollen + pale optic disc
High dose IV methylprednisolone, low dose aspirin
Vasculitis causes ischaemia of posterior ciliary arteries supplying optic nerve head

Vitreous haemorrhage: painless, floaters, red reflex diminished. Fundoscopy: blocked by blood. Many causes
Mx: treat cause, vitrectomy (remove humour)

Posterior vitreous detachment: floaters + flashes of light, cobweb across vision. Fundoscopy: Weiss ring (circular floater); optical coherence tomography + B-scan US
Mx: will resolve in 6m; referral to ophthalmology to exclude retinal tear / detachment

Retinal detachment: floaters + flashes, progresses from periphery (shadow coming down) +/- macular involvement, red reflex lost: Fundoscopy: retinal folds wrinkled / looks like has come off, pale / opaque
Mx: urgent referral for surgery / laser / cryotherapy

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8
Q

Upper vs lower zone fibrosis causes

A

Upper = TSAR workers G
Upper = TB, sarcoidosis, ank spon, radiation, workers (pneumoconiosis + silicosis, hypersensitivity pneumonitis), granulomas (eosinophilic, langerhans histiocytosis)

Lower = RAID-man
Rheumatological (RA, scleroderma, SLE, Sjorgren’s), asbestosis, idiopathic PF, drugs (methotrexate, amiodarone, nitrofurantoin)

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9
Q

Crohn’s vs ulcerative colitis

A

Crohn’s: mouth to anus, skip lesions, all layers, deep ulcers, cobblestone appearance
Increased goblet cells, granulomas, strictures (Kantor’s string), proximal dilation
Gallstones + oxalate renal stones (decreased bile reabsorption)
Crohn’s NEST: no blood / mucus, entire GI tract, skip lesions, transmural inflammation (terminal ileum most common)
Gs: (whole) GI tract, granulomas, goblet cells increased, gallstones
UC: rectum start + never past ileocaecal valve, continuous, not past submucosa, widespread ulceration with preservation of adjacent mucosa (pseudopolyps)
Depletion of goblet cells, crypt abscesses, loss of haustrations, drainpipe (narrow + short) colon
Smoking protective, primary sclerosing cholangitis

You see (UC) CLOSEUP: continuous inflammation, limited, only superficial, smoking protective, excrete blood + mucus, use aminosalicylates, primary sclerosing cholangitis
Cs: colon only, continuous (and superficial), crypt changes (abscesses, increased, shortened + branching), colorectal cancer + toxic megaColon

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10
Q

Sepsis: RF crireria, Mx, Ix for source

A

NICE red flag criteria: responsive only to voice / pain / unresponsive, acute confusion, systolic < 90 (or drop > 40), HR > 130, RR > 25, SpO2 < 92%, cyanosis, urine < 0.5ml/kg/h, lactate > 2, recent chemo

Mx: take blood cultures + lactate (VBG) + urine output, give broad spectrum Abx + 500ml fluid bolus + oxygen; BUFALO: blood cultures, urine, fluids, antibiotics, lactate, oxygen
Abx: piperacillin + tazobactam or cefuroxime. MRSA - add vancomycin, anaerobic - add metronidazole, resistant - meropenem, meningococcal - benzylpenicillin / cefotaxime

Ix (source of infection): urine dip + culture, CXR + sputum culture, swabs of relevant areas, ECG, LFTs; also echo, LP, abdo CT / US, line culture, BM
Most common sources: pneumonia, intraabdominal, UTI, skin / soft tissue, bacteraemia (line)

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11
Q

Mx for all ACS

A

All patients ECG (determine STEMI vs NSTEMI / unstable angina) + troponin (repeat at 6 + 12h)
STEMI: ST elevation in 2+ contiguous leads or new LBBB
Immediate Mx (MOONA): aspirin 300mg, oxygen if sats < 94%, nitrates (unless hypotensive), morphine if severe pain, IV ondansetron (prevent vomiting antiplatelets)

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12
Q

Mx of STEMI

A

First choice = PCI (12h of onset, 2h of when thrombolysis would be given); balloon + drug eluting stent
Aspirin + prasugrel (clopidogrel if already on anticoagulant) prior to surgery
Radial access preferred - unfractionated heparin + bailout glycoprotein inhibitor (eptifibatide)
If cardiogenic shock - coronary angiogram first

PCI not available - thrombolysis (as long as not contraindicated)
Alteplase with antithrombin (enoxaparin / heparin)
Aspirin + ticagrelor (clopidogrel bleeding risk) immediately following
ECG 60-90 following, persistent ST elevation - PCI
Contraindications: Hx of intracranial haemorrhage / CNS damage / AV malformation, stroke in last 6m, major trauma / surgery / GI bleed in last month, bleeding disorder, aortic dissection

If over 12h and still Sx or ECG changes - consider PCI

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13
Q

Mx of NSTEMI

A

Risk assessment with GRACE score: age, HR, BP, cardiac Killip class, creatinine, cardiac arrest, ECG, troponin
< 3% low risk, > 3% needs intervention

Coronary angiogram: if unstable - immediate + heparin; within 72h otherwise + fondaparinux

PCI indicated in CA: heparin + ticagrelor (clopidogrel if bleeding risk)

Low risk: aspirin + ticagrelor / clopidogrel + fondaparinux

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14
Q

ACS secondary prevention

A

Aspirin indefinitely + ticagrelor / clopidogrel for 12m, ACE / ARB, BB (CCB), high dose statin
DAABS: dual antiplatelet (PPI), ace, beta blocker, statin
HF: eplerenone / spironolactone, dapagliflozin
Cardiac rehabilitation + lifestyle changes

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15
Q

Cardiac resus, Mx of shockable, non shockable, bradycardia

A

Shockable rhythms - ventricular fibrillation, pulseless ventricular tachycardia
Single shock (150-200J) followed by CPR for 2 mins then reassess rhythm and continue
If happens whilst monitored (coronary care unit) should start with 3 successive shocks
1mg IV adrenaline after 3rd shock then every 3-5 mins, 300mg amiodarone after 3rd + 150mg after 5th

Non shockable - pulseless electrical activity / asystole
Adrenaline 1mg immediately then every 3-5 mins, recheck rhythm every 2 mins

Bradycardia resus: shock, syncope, MI, HF; risk of asystole: recent asystole, Mobitz II / complete heart block with broad QRS, ventricular pause ? 3s
Atropine 500mcg IV and assess response; repeat to maximum 3mg (6 total), transcutaneous pacing, adrenaline 10mcg
Alternatives to adrenaline: isoprenaline, aminophylline, dopamine, glucagon if BB / CCB overdose
Transvenous pacing last line but need expert help first

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16
Q

Mx of tachycardias

A

Narrow complex (supraventricular): usually atrial in origin, anterograde conduction and polarisation through AV + his-purkinje
AV node reentry tachycardia, AV reentry tachycardia, atrial tachycardia due to foci (multiple = atrial flutter), AF. Px: typically abrupt onset / offset recurrent episodes
Vagal manoeuvres (valsalva, cold stimulus over face, carotid sinus massage) FL, adenosine (6mg - 12 - 18), failed - bolus verapamil
Long term: radio-frequency ablation, BB / CCB, SL flecainide / sotalol

Wide complex (ventricular): conduction through the ventricles (slower myocyte-myocyte) due to AV conduction / accessory pathway / ventricular origin
Monomorphic: amiodarone (flecainide, lidocaine), electrical cardioversion if drugs fail
Polymorphic (long QT, torsades): treat underlying cause, magnesium sulfate for TdP
Long QT syndrome (inherited / drugs / electrolytes) - fast chaotic beats, when triggered can cause blackouts (faint) and even cardiac arrest, need to be careful with drugs exaggerating. Beta blockers
Torsades de pointes - ventricular tachycardia, specific polymorphic ‘twisting’ ECG, prolonged QT (rf), can be caused by hypokalaemia / hypocalcaemia / antiarrhythmics
Long term: specialist referral, implantable cardioverter defibrillator, BB +/- amiodarone

Unstable (any type): immediate synchronised cardioversion under GA +/- CPR
Unstable: shock (hypotension, impaired consciousness), syncope, MI, HF

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17
Q

Mx of ischaemic stroke

A

Ix: CT head immediately to rule out haemorrhagic, diffusion weighted MRI for salvageable tissue, carotid doppler US
Mx: aspirin 300mg once haemorrhage ruled out, thrombolysis + thrombectomy if fit criteria
Also supportive Mx and VTE prophylaxis with intermittent pneumatic compression
Thrombolysis with alteplase: presents within 4.5h, 4.5-9h or within 9h of midpoint of sleep and evidence of salvageable tissue
Mechanical thrombectomy: within 6h and confirmed proximal anterior circulation, 6-24h if salvageable tissue; consider for proximal posterior circulation + salvageable
Secondary prevention: aspirin for 2w then clopidogrel lifelong (aspirin + dipyridamole), high dose statin
Also manage BP, DM, lifestyle
Carotid endarterectomy + stent if in carotid territory and stenosis > 50%
If AF: aspirin for 14d then return to DOAC

18
Q

Mx of TIA

A

No longer time based; ischaemia without acute infarction
Ix: ECG + carotid imaging, referral to specialist for diffusion weighted MRI
Only CT if on anticoagulants / other diagnosis suspected
Mx: immediate aspirin 300mg and seen within 24h by stroke specialist (if presents after 7d seen within 7d)
Secondary prevention: clopidogrel (lifelong), high dose statin. (Carotid + AF like stroke)
Aspirin also given for first 21d by specialist if high risk of further events

19
Q

Non acute asthma Ix + Mx

A

Ix (in order): FeNO > 50 / blood eosinophils, FEV1 increases > 12% / 200ml after bronchodilator, PEF variability > 20% over 2w, refer for bronchial challenge
Stepwise testing, once positive for one no need to do others

Mx: AIR (low dose ICS + formoterol) as needed, low dose MART (ICS + formoterol) daily + as needed, moderate dose MART; measure FeNO (or eosinophils) - raised trial adding LTRA / LAMA, not raised refer
Formoterol used as is fast and long acting
If severe Sx skip AIR straight to MART
Converting from old regime, go off ICS dose, low dose - low dose / moderate - moderate (ignore other drugs)

20
Q

Acute asthma, Ix + classification, Mx + discharge

A

Ix: PEFR / FEV1, sats, ABG
Classification
Moderate: PEFR 50-75% predicted + no severe features
Severe: PEFR 33-50%, RR > 25, HR > 110, can’t complete sentences in one breath
Life threatening: PEFR <33%, SpO2 < 92%, PaO2 <8, PaCO2 rising, silent chest, cyanosis, reduced effort / exhaustion, new arrhythmia, reduced GCS, hypotension
Near fatal: PaCO2 >6 or need for NIV

Admission: all life threatening, severe if fails to respond to initial treatment
Mx: oxygen, salbutamol, 5d 50mg prednisolone
Not responding: neb ipratropium, neb magnesium sulphate, IV aminophylline, mechanical ventilation
Discharge: stable on discharge meds for >12h, inhaler technique checked, PEFR >75%. 40-50mg pred for 5 days

21
Q

Paediatric asthma, Ix + Mx

A

Ix: FeNO (> 35) diagnostic, spirometry + bronchodilator reversibility, PEF variability. Still suspected - measure IgE and eosinophils, skin prick for dust mite allergy

Mx: paediatric low dose ICS + SABA BD. Decision then made about whether children / carers can adhere to MART therapy, always still with SABA
MART pathway: low dose, moderate dose, refer to specialist
Conventional: trial LTRA, low dose ICS / LABA (+/- LTRA), moderate dose ICS / LABA (+/- LTRA)

Mx under 5: 8-12w trial of low dose ICS with SABA BD, if Sx resolve can uptitrate, if they don’t refer

22
Q

COPD Ix + stages, Mx, criteria for extra Mx

A

Ix: spirometry (FEV1/FVC < 0.7), CXR, FBC, U+Es, dyspnoea scale. HRCT for emphysema / bronchiectasis, echo for cor pulmonale, A1AT screening if <45 or non smokers
FEV1 shows GOLD stages: 1 >80%, 2 - 50-79%, 3 - 30-49%, 4 - <30%
MRC dyspnoea scale: 1 strenuous exercise, 2 walking uphill, 3 slightly on flat, 4 can’t walk on flat, 5 unable to leave house

Mx: SABA / SAMA (no SAMA with triple therapy) first line, determine whether steroid responsive (asthma features, high eosinophils, variation in FEV1 (>400ml) or peak flow (>20%)
Yes: LABA + ICS, LABA + ICS + LAMA (using combination inhalers where possible)
No: LABA + LAMA, LABA + LAMA + ICS
(SABA - salbutamol, SAMA - ipratropium, LABA (salmeterol), LAMA (tiotropium), LABA + ICS (fostair - beclometasone + formoterol), LABA + LAMA (anoro ellipta - umeclidinium + vilanterol). LABA + LAMA + ICS (trimbow - beclometasone, formoterol, glycopyrronium))
Smoking cessation, annual influenza vaccination, one off pneumococcal, pulmonary rehab

Long term oxygen therapy (only if stopped smoking) - severe (<30%), cyanosis, polycythaemia, peripheral oedema / raised JVP, sats <92% on room air, PO2 < 7.3
Rescue pack: prednisolone + antibiotic (amoxicillin / doxycycline)
Exacerbation in last year
Prophylactic azithromycin 3 times per week if already: no longer smokes, optimised Mx, pul rehab
4 exacerbations in last year - hospital admission at least once

23
Q

Acute COPD exacerbation Px, bugs, Ix, Mx

A

Acute exacerbation: GOLD major sx: dyspnoea, increased sputum volume, increased sputum purulence. Minor: cough, wheeze, nasal discharge, sore, pyrexia
Haemophilus 50%, strep pneumoniae, moraxella, 30% viral

Ix: sats, ABG (respiratory acidosis, CO2 retention), CXR, ECG, FBC, U+Es, sputum culture, blood culture if systemic

Oxygen: venturi 24% 2-3L, 28% 4L, nasal cannulae 1-2L. NIV indicated (after 60m): pH < 7.35, pCO2 > 6.5, RR > 23. No improvement after 4h - mechanical ventilation
Regular inhalers / nebs, oral prednisolone 30mg for 5d, antibiotics if appropriate - (amoxicillin / clarithromycin). Abx for 2+ major (inc sputum purulence) / mechanical ventilation
Severe: IV theophylline, NIV, intubation + ventilation
Prior to discharge: measure spirometry / sats / ABG, optimise bronchodilators, arrange follow up

24
Q

DKA Px, Ix, Mx

A

Px: polyuria + polydipsia, n+v, abdominal pain, acetone breath, dehydration + hypotension, altered consciousness, underlying trigger

Ix: blood glucose >11.1, blood ketones >3 (or urine ketones 2+), blood pH <7.3 +/- HCO3 < 15 (also check potassium)

Mx:
Fluid replacement always first step, 0.9% NaCl (usually 5-8L). If K is < 5.5 add 40 mmol K (KCl) after first infusion (senior review if < 3.5). Risk of cerebral oedema if done too quickly
Insulin: fixed rate 0.1 unit/kg/h. Once glucose < 14, 10% dextrose 125 ml/h as well as NaCl
Short acting insulin stopped, continue long acting
Resolution defined as pH > 7.3, serum ketones < 0.6, HCO3 > 15. If met and E+D switch back to sc insulin. Not met after 24h senior review

25
HF acute + chronic Mx (criteria for third line)
Acute Mx: IV furosemide 40mg, oxygen if required (CPAP in resp failure), nitrates if BP >90; hypotension: dobutamine in LV dysfunction + shock +/- norepinephrine Chronic Mx - treat cause + lifestyle, ABAL: ace / arb, beta blocker, aldosterone antagonist, loop diuretic. New evidence shows SGLT-2 improves outcomes even without diabetes. Third line: ivabradine, sacubitril-valsartan, digoxin, hydralazine + nitrate, cardiac resynchronisation TL criteria: ivabradine - HR > 75, LVEF < 35%; S-V LVEF < 35%; digoxin - coexistent AF; H+N - afro-caribbean; cardiac resynchronisation therapy - wide QRS (LBBB)
26
Addisonian crisis Px, Ix, Mx
Lethargy, confusion, n+v, abdo pain, weakness; severe: hypotension, severe hypoglycaemia (sweating, confusion, shaking) Hyperkalaemia, hyponatraemia, hypoglycaemia, metabolic acidosis, low cortisol, raised ACTH (low in secondary) In emergency setting treat before waiting for results (Not crisis: 9am cortisol + ACTH, short synacthen test GS, renin + renin:aldosterone, DHEA, U+Es, BMs, antibodies) Mx: 100mg hydrocortisone IV stat (then 50mg QDS), fluids, glucose if hypoglycaemic, monitor electrolytes Treatment will lower potassium but treat for hyperkalaemia if ECG changes
27
Hyperkalaemia Px, ECG changes, Mx
Vague presentation, weakness, fatigue, palpitations, paraesthesia, cramps, n+v Concerns due to ECG changes: peaked / tall T waves, PR prolongation / loss of P, QRS widening; sine wave pattern; ventricular fibrillation / asystole ECG all patients with K > 6 Mx (ECG changes): IV calcium gluconate (stabilises myocardium), insulin + dextrose (salbutamol); remove from body: calcium resonium (enema > oral), loop diuretics, dialysis (AKI) Non urgent: loop diuretics, polystyrene sulfonate resin (prevents absorption) + laxatives
28
Describe FeverPAIN score and what it indicates
FeverPAIN (strep pharyngitis / whether to give Abx): fever, purulent tonsils, attends rapidly (Sx < 3d), inflamed tonsils, no cough / coryza 1 point for each criteria 0-1 no Abx, 2-3 delayed Abx, 4-5 immediate Abx
29
Describe C(U)RB-65 and what it indicates
C(U)RB-65 (severity / mortality of pneumonia): confusion (AMTS <=8/10), urea > 7, RR > 30, BP < 90/90, age > 65 CRB-65: home care for score 0-1, 2+ hospital admission Also CRP: < 20 no Abx, 20-100 delayed Abx, > 100 immediate Abx CURB-65: 0-1 home based care, 2 admission, 3+ consider intensive care
30
Describe Well's (PE) and how to manage accordingly, also PERC
Well’s (PE): clinical signs of DVT 3, PE most likely diagnosis 3, HR > 100 1.5, immobilised for 3d / surgery last 4w 1.5, previous DVT / PE 1.5, haemoptysis 1, active cancer 1 4+ PE likely: CTPA, if delayed interim LMWH. CTPA negative - proximal leg US if DVT suspected <4 PE unlikely: D-dimer; +ve CTPA; -ve consider alternative diagnosis PE rule out criteria (used when suspicion low before testing): age > 50, HR > 100, sats < 94%, previous DVT / PE, recent surgery / trauma in 4w, haemoptysis, unilateral leg swelling, oestrogen meds If all are absent probability of PE is < 2%
31
Describe Well's (DVT) and Mx
Well’s (DVT) - all 1: calf > 3cm larger than asymptomatic, localised tenderness along DV system, entire leg swollen, pitting oedema only on affected, collateral superficial (non varicose) veins, previous DVT, cancer in last 6m, paralysis / paresis of leg, immobile for 3d / surgery in last 3m Alternative as likely = -2 2+ DVT likely: proximal US within 4h (delayed interim LMWH); -ve D-dimer Scan negative but D-dimer +ve : stop anticoagulation, repeat US in 1w <2 DVT unlikely: D-dimer within 4h, +ve proximal US within 4h; D-dimer -ve consider alt diagnosis
32
Describe CHADSVASC and ORBIT and what they indicate
CHA2DS2-VASc: chronic HF, hypertension, 75+ 2, diabetes, stroke / TIA 2, vascular disease, 65+, sex female 1+ men / 2+ females consider long term anticoagulation, 0 anticoagulation for 2m ORBIT (bleeding in AF) 1 each: older 75+, reduced haemoglobin (< 130 M, < 120 F), bleeding history, insufficient kidney function (eGDR < 60), treatment with antiplatelets / NSAIDs 0-2 low risk, 3 intermediate (monitor), 4+ high risk (consider low dose / not anticoagulating)
33
Describe Glasgow-Imrie and Rockall, what they indicate
Glasgow-blatchford (GI bleeding before endoscope): HR > 100, systolic BP, haemoglobin, urea, melaena, recent syncope, liver disease, cardiac failure 0 discharge, 1 hospital admission, > 6 urgent endoscopy and intervention Rockall (post endoscopy): age, shock, comorbidities, diagnosis on scope, major stigmata (blood in tract, adherent clot, spurting vessel) < 3 discharge, 3+ admit for monitoring, 6+ high risk repeat endoscopy and intervention
34
Describe Glagow-Imrie and what it indicates
Glasgow-Imrie (pancreatitis severity) - (PANCREAS): PaO2 <8 kPa, Age >55, Neutrophils (WCC) >15*109, Calcium <2, Renal (urea) >16, Enzymes LDH >600 AST >200, Albumin <32, Sugar >10 0-2 supportive, 3-4 aggressive IV fluids consider escalating, 5+ ICU
35
Describe 4AT and what it indicates
4AT (delirium): Alertness: clearly abnormal 4 AMT4: age, date of birth, place, current year. 1 mistake - 1, 2+ or untestable - 2 Attention (lists months backwards): 7+ correct 0, <7m or refuses 1, untestable 2 Acute / fluctuating in last 2w: yes 4 <4 delirium unlikely, 4+ delirium likely
36
Describe how to manage APGAR and bishop scores
APGAR: 7-10 normal, 4-6 monitoring, 0-3 resus Bishop: > 8 favourable, < 5 unfavourable. > 6 amniotomy + oxytocin, =< 6 vaginal prostaglandin / misoprostol Order of intervention: membrane sweep, vaginal prostaglandin E2, misoprostol, oxytocin, amniotomy (artificial rupture), cervical ripening balloon
37
Describe Px, Mx and patho of non infective acute transfusion reactions
Pulmonary oedema: hypotension = TRALI, hypertension = TACO Systemically unwell + hypotension: fever + pain = acute haemolytic, wheeze + angioedema = anaphylaxis, septic = bacterial colonisation Non haemolytic febrile: fever, chills, systemically well; slow / stop transfusion, paracetamol, monitor Antibodies reacting with white cell fragments and cytokines that have leaked from cells Acute haemolytic (ABO incompatibility): fever, abdo / chest pain, hypotension, agitation, starts minutes after transfusion; stop transfusion, confirm diagnosis (check ID + product, direct coombs test, repeat typing + cross matching), fluid resuscitation ABO incompatible blood (usually human error). Complications; DIC, renal failure Minor allergic reaction: pruritus, urticaria; temporarily stop transfusion, antihistamine, oxygen, fluids Foreign plasma proteins Anaphylaxis: hypotension, dyspnoea, wheeze, angioedema; stop transfusion, IM adrenaline, oxygen, fluids Typically IgA deficiency with anti-IgA antibodies Transfusion associated circulatory overload: pulmonary oedema, hypertension, no fever; slow / stop transfusion, IV furosemide, oxygen Excessive rate of transfusion +/- pre existing heart failure Transfusion related acute lung injury: pulmonary oedema + hypoxia, fever, hypotension; stop transfusion, oxygen + supportive care Non cardiogenic pulmonary oedema, secondary to increased vascular permeability due to immune response
38
Describe hepatitis serology
HBsAG (surface antigen) = active infection (acute or chronic) Anti-HBs (surface antibody) = immunity (vaccination of past infection) Anti-HBc (core antibody) = infection (past or current) IgM present for 6m, IgG persists HbeAG (breakdown of core antigen) = marker of infectivity + replication Vaccination = only anti-HBs Resolved infection = anti-HBs + anti-HBc (HBsAG negative) Acute infection = HBsAg + igM anti-HBc Chronic infection = HBsAg > 6m, anti-HBc +/- HBeAg Hep C (no vaccination!): HCV RNA (PCR) = active, anti-HCV = past or current Active = both positive, resolved = only anti-HCV
39
Surgeries + stoma / anastomosis for right sided colon cancer, left sided colon cancer, sigmoid cancer, perforated sigmoid, rectal cancer, anal verge / low rectal cancer
Right hemicolectomy: removes caecum, ascending colon and part of transverse colon Right sided colon cancer, Crohn’s, ischaemia Usually no stoma, ileo-colic anastomosis Left hemicolectomy: removes descending colon, part of transverse Left sided colon cancer, diverticular disease, ischaemia Usually no stoma, colo-colon anastomosis Sigmoid colectomy: removes sigmoid Diverticular disease (with perforation / abscess), sigmoid cancer, volvulus If anastomosis high risk - temporary loop ileostomy Hartman’s: emergency for perforation (risk of anastomosis much higher), sigmoid removed + end colostomy, can be reversed Diverticular with perforation, obstructing rectosigmoid cancer End colostomy that can be reversed Anterior resection: removes rectum and sigmoid, colo-rectal anastomosis Sigmoid colon - high anterior resection Upper rectum - anterior resection Low rectum (< 8cm from anus) - low anterior resection +/- defunctioning loop ileostomy Abdomino-perineal resection: removes entire rectum and anus (no sphincter) anal verge cancer, low rectal (< 4cm from anus) Permanent end colostomy
40
What are the indications for loop / end ileostomy / colostomy
Loop ileostomy (R, temporary): defunctioning for low rectal cancer / protecting anastomosis End ileostomy (R, temporary / permanent): total colectomy, anastomosis not possible Loop colostomy (L temporary): diverting stool from obstruction or in palliative End colostomy (R / L, temporary): Hartman’s procedure (anastomosis not possible)