Cardiology Flashcards
6 causes of orthostatic hypotension
Pregnancy Postprandial or exercise induced venous pooling Extended rest (deconditioning) Nifedipine Diabetic neuropathy Parkinson's
Adult dose of adrenaline for analphylaxis
0.5ml of 1 in 1000 (500 micrograms) IM
2 changes on echo for HOCM
Asymmetric septal hypertrophy
Systolic anterior movement (SAM) of anterior leaflets of mitral valve
When to treat stage 1 hypertension in <80s (5 reasons)
Diabetic Renal disease QRISK2 >20% Established coronary vascular disease End organ damage
Lifestyle advice for hypertension
Salt Caffeine Smoking Exercise Alcohol Weight loss Fruit and vegetables
PE scans and contraindications
CTPA unless renal impairment or allergy to contrast - then VQ scan
What drug can mask hypoglycaemic symptoms?
B blockers
Drugs that can cause long qt
Amiodarone, sotalol, class 1a antiarrhythmics TCAs, SSRI (citalopram), haloperidol Methadone Erythromycin
Non drug causes of long qt
Anterior MI Myocarditis Hypothermia SAH Electrolytes - low calcium, potassium, magnesium
First ECG change for MI
Hyperacute T waves
Anaphylaxis salbutamol and adrenaline repeats?
Back to back salbutamol nebs
Adrenaline every 5 mins
BP targets for diabetics
130/80 if end organ damage (renal disease, retinopathy)
Otherwise 140/80
ABG changes with PE
pH high
pO2 and pCO2 low
Murmur with infective endocarditis
Pansystolic, left lower sternal border
Management of patients on warfarin needing emergency surgery
If in 6-8h, give 5mg IV vit k
If surgery immediately, 25-50u/kg 4 factor prothrombin complex
4 features of rheumatic fever
Erythema marginatum
Sore throat
Chorea
Polyarthralgia
Aortic stenosis top cause
<65 = bicuspid valve >65 = calcification
Mechanism of adenosine
Agonist of A1, inhibiting adenylyl cyclase so reduces cAMP and causes hyperpolarisation by potassium efflux
3 ADRs of adenosine
Bronchospasm
Chest pain
Enhance conduction down accessory pathways, increasing ventricular rate
Adrenaline dose for 6-12 year olds
300 micrograms 1 in 1000
Heart sounds for AS (2)
Split second heart sound
Ejection systolic murmur
heart sound for left heart failure
Third heart sound
Management of INR 5-8 on warfarin with no bleeding
Withold 1 or 2 doses and reduce maintenance dose
Features of constrictive pericarditis
Dyspnoea
Right heart failure - raised JVP, ascites, oedema, hepatomegaly
Loud S3 - pericardial knock
Kussmaul’s sign
Differentiate between constructive pericarditis and cardiac tamponsde
Kussmaul’s sign and calcification on CXR = pericarditis
Pulses paradoxus = tamponade
Rate control in asthmatic with AF
Calcium channel blocker (diltiazem) instead of usual b blocker
How does aspirin work
Antiplatelet - inhibits production of thromboxane a2
How does clopidogrel work
Antiplatelet - inhibits ADP binding to platelet receptor
How does enoxaparin work
Activates antithrombin 3 which potentiates inhibition of coagulation factors Xa
How does fondaparinux work
Activates antithromin 3 which potentiates inhibition of coagulation factors Xa
How does bivalirudin work
Reversible direct thrombin inhibitor
How do abciximab, eptifibatide and tirofiban work
Glycoprotein 2b/3a receptor antagonists
4th drug for hypertension with low potassium or high potassium
Spironolactone if low (<4.5)
High dose thiazides like (>4.5)
Anticoagulation if post-stroke with AF
5mg apixiban BD
Features of prinzmetal angina
Smokers
Young
Morning or at sleep
ST elevation
Difference between PR segment and interval
Segment is from end of p wave to beginning of q
Interval is beginning of p wave to beginning of q
Heart failure first line treatments
Ace inhibitor and b blockers
Heart failure 3rd drug
Aldosterone antagonist
ARB
Hydralazine and nitrate if afrocaribbean
HF symptoms persisting (2 treatments) not diuretic
Implantable cardioverter defibrillator
Digoxin
ACS immediate management
Morphine Oxygen Nitrates (GTN) Aspirin Clopidogrel or ticagrelor Anticoagulation - enoxiparin or fondaparinux
What is Buerger’s disease, what features and risk factors
Thromboangiitis obliterans (small and medium vessel vasculitus) Causes extremity ischaemia (intermittent claudication, ischaemic ulcers) superficial thrombophlebitis and raynaud's Risk factors: 20-40, male, smoker,
Features of WPW on ECG
Left axis deviation (right sided pathway)
Short PR
Wide qrs with delta wave
Management of WPW
Radio frequency ablation of pathway
Sotalol unless AF
Amiodarone
Flecainide
3 mechanisms contributing to bronchiectasis
Infection
Airway obstruction
Peribronchial fibrosis
Bronchiectasis on CXR
Tram track
Tubular opacities (mucous filled bronchi)
Ring opacities (dilated end on bronchi)
Compensatory overinflation of less affected lung
Lobar atelectasis from mucous plugging
What is kartagener syndrome
Dextracardia and bronchiectasis
Long term medication after STEMI
Dual antiplatelet
B blocker
ACEi
Statin
Bilateral hilar lymphadenopathy, Fever, cough and erythema nodosum
Sarcoidosis
When to start COPD patient on non invasive ventilation?
PCO2>6
Ph<7.35
Indications for NIV
Type 2 resp failure secondary to obstructive sleep apnoea, chest wall deformity, neuromuscular disease
Copd with resp acidosis
Cardiogenic pulmonary oedema unresponsive to CPAP
Weaning from tracheal intubation
Dyspnoea, non productive cough, malaise, weight loss, hypercalcaemia
Sarcoidosis
Obstructive sleep apnoea management
Weight loss
CPAP if moderate or severe
Intramural devices if CPAP not tolerated or mild (no day time sleepiness)
What causes pulmonary oedema in cardiogenic shock?
High pulmonary pressures - treat with venodilators
Joint pain and raised ACE
Sarcoidosis
Contraindications to lung cancer surgery
SVC obstruction
FEV<1.5
Malignant pleural effusion
Vocal cord paralysis
Prognostic score for risk stratifying potential TIA
ABCD2
Prognosis of prostate cancer score
Gleason
Risk of patient developing pressure sore score
Waterlow
Acute pancreatitis score
Ranson
Indication for long term oxygen therapy in COPD
2 ABGs with pO2 <7.3
Cause of eruptive xanthoma
High triglyceride levels
Paraneoplastic features of lung cancers
Adenocarcinoma - gynaecomastia
SCC - hypercalcaemia (PTHrP), hyperthyroid (TSH), clubbing and hypertrophic pulmonary osteoarthropathy
Bronchial adenoma - carcinoid
Large cell - bHCG
COPD management after salbutamol
FEV1 <50 = LABA+ICS or LAMA
>50 LABA or LAMA
Resp complication of pancreatitis
ARDS
Target sats if COPD with Normal pCO2
94-98%
Features of klebsiella pneumonia
Cavitating in upper lobes on CXR
Abscess and empyema, 30-50% mortality
Red currant jelly sputuml’
Diabetes and alcoholics
Who is at risk and what is on CXR of pseudomonas aeruginosa
Bronchiectasis and CF, ventilated
Ground glass
Features of mycoplasma pneumoniae
Flu like - headache, arthralgia, myalgia, dry cough
Patchy consolidatoin of 1 lobe
Features of legionella pneumophilia
Flu like - fever, myalgia
Extra pulmonary ie hepatitis, diarrhoea, vomiting
Bi basal consolidatoin on cxr
Mild, moderate, severe and very severe FEV1 readings in COPD
<0.7
50-70%
30-50
<30
CXR COPD
Hyperinflation
Flat diaphragm
Bullae
Causes of upper lobe pulmonary fibrosis
CHARTS Coal workers oneumonitis Hypersensitivity pneumonitis or Histeocytosis Ankylosing spondylitis Radiation Tuberculosis Silicosis or Sarcoidosis
Indications for chest drain in pleural infection
Frankly purulent or turbid/cloudy on sample
Cultured organisms
PH<7.2
What kind of NIV in COPD?
BiPAP
Most common bacteria in COPD exacerbations
H influenzae
Strep pneumoniae
Moraxella catarrhalis
Rhinovirus
COPD exacerbation management
Increase bronchodilator frequency, maybe nebulise
Prednisolone 30mg for 7-14d
Abx if purulent or clinical signs of pneumonia
Order of 6 drugs for acute asthma management
Oxygen Salbutamol nebs Ipratropium nebs Hydrocortisone IV or oral prednisone Magnesium sulfate IV Aminophylline or IV salbutamol
Bronchiectasis management
Physio Postural drainage Abx for exacerbations or long term Bronchodilators ImmunisAtions Surgery if localised
2 imaging for suspected lung cancer
CXR then CT contrast
Electrolyte abnormality in sarcoidosis and why
Hypercalcaemia because macrophages in granulomas convert vit D to active form more
Cannonball mets on cxr
Renal cell cancer
Difference in emphysema in COPD or a1at def
Upper in COPD
Lower lobes in a1at
R3current chest infections and subfertility
Ciliary dyskinesia - kartagener
Complication of long qt
Ventricular tachycardia and sudden collapse or death
Management of long qt
Avoid drugs and precipitates ie strenuous exercise
B blockers
Implantable cardioverter defibrillator
ComplicToin of embolisation of left ventricular thromboembolism
Emboli
3 features of constructive pericarditis and one cause
Cardiac surgery
Dyspnoea
Peripheral oedema
Kussmaul’s sign
Rate or rhythm control if AF with obvious reversible cause eg pneumonia?
Rhythm control
Threshold for treating >80yo with hypertension
150/
Murmur scale and basic explanation
Levine scale 1 very faint 2 slight 3 moderate 4 loud and thrill 5 very loud and very palpable thrill 6 extremely loud without stethoscope
When is coarctation of the aorta diagnosed and how
At day 2 when PDA closes = heart failure and absent femoral pulses
Second line treatment for AF rate control
Digoxin or diltiazem
Diagnosis of pulmonary fibrosis
Spirometry
Reduced TLCO
High resolution CT
Complications of asbestos
Benign pleural plaques Pleural thickening Asbestosis - lower lobe Lung cancer Mesothelioma
Artery affected in complete heart block after MI
Right coronary artery (AVN)
What is malignant hypertension
Severe hypertension with potentially life threatening sx suggesting acute organ impairment - kidneys, eyes, heart
How does miliary TB travel through lung parenchyma
Pulmonary venous system
What is granulomatosis with polyangitis
Necrotising granulomatous vasculiitis - upper and lower resp sx, glomerulonephritis, saddle shaped nose
Marker for granulomatosis with polyangitis
ANCA
Management of secondary pneumothorax
<1cm - admit for high flow o2 for 24h
1-2cm - aspirate
>2cm - chest drain
ECG indications for thrombolysis or PCI
ST elevation of >2mm in 2+ consecutive anterior leads V1-6
Or >1mm in 2 consecutive leads 2,3,avF,avL
New lbbb
Hypertension therapy after A + C + D
Add thiazide (spironolactone if low K, high dose thiazide if high)
Or a blocker
Or b blocker
What diuretic should be used first in hypertension
Indapamide or chlorthiazone
When should a statin be given (what qrisk2)
> =10%
8 reversible causes of cardiac arrest
4H 4T Hypothermia Hypoxia Hypovolaemia Hypo/erK, hypoglycaemia Tensoin pneumothorax Tamponade Toxins Thrombosis
What can and cannot be used for smoking cessation in pregnancy
Yes NRT
Varenicline harmful
Bupropion insufficient info
Features on CXR of HF
Alveolar oedema kerley B lines (interstitial oedema) Cardiomegaly Dilated prominent upper lobe vessels Effusion (pleural)
Calcified nodule on CXR from previous tb
Ghon complex - latent Tb. Granuloma
4 features of centor criteria and what do they suggest
3+ = 40-60% chance group a b haemolytic strep No cough Exudate on tonsils Tender anterior cervical lymphadenopathy Fever
Management of torsades de pointes
Magnesium sulfate iv
Lung and liver features of a1ar
Lung - panacinar emphysema (lower lobes)
Liver - cirrhosis, hepatocellular carcinoma, cholestasis in children
Manage a1at
Physio, bronchodilators
IV a1at protein concentrates
Surgery - volume reduction, transplant
Manage HOCM
Implantable cardioverter-defibrillator
What presents at 1w old with reduced femoral pulses and what murmur is there
Coarctation of the aorta
Systolic in left sternal edge
Features of idiopathic pulmonary fibrosis
50-70yo, 2x in men
Dry cough, Dyspnoea
Weight loss Bibasal inspiratory crackles
Finger clubbing
COPD exacerbation and no CXR change?
Treatment
Haemophilus influenzae
Amoxicillin and prednisolone
Specific chemicals affected by drugs in kidney disease (afferent and efferent arterioles) and why use in ckd
Afferent - prostaglandin E2 - NSAIDS
Efferent - angiotensin 2 - ACEi, ARB
ACEi and ARB for antihypertensiin and anti inflammatory, reduce glomerular perfusion pressure to prevent damage
Features of pulmonary oedema on cxr
Pleural effusion Interstitial oedema Bat wings Upper lobe diversion Kerley b lines
Cause of raised TLCO
Asthma Pulmonary haemorrhage Left to right shunt Polycythaemia Hyperkinetic Male, exercise
Cause of low TLCO
Fibrosis Pneumonia Emboli Oedema Emphysema Anaemia Low cardiac output
Heart failure pulse
Pulsus alternans - upstroke alternate strong and weak, - systolic dysfunctiom
Inferior MI and aortic regurgitation murmur?
Proximal aortic dissection
Features of boerhaave syndrome
Middle aged male alcoholics
Mackler triad: vomiting, thoracic pain, subcut emphysema
Borders of triangle for chest drain insertion
Lat dorsi
Pec major
Line superior to nipple
Apex of axilla
FEV cut offs for severity of COPD
Mild >80
Moderat 50-79
Severe 30-49
Very severe <30
FEV/FVC for airflow obstruction
Less than 0.7