Amir Sam DPD Flashcards
60M, presenting with 4 hr Hx of tight chest pain, nausea, sweating, SOB, HTN, DH: Amlodipine
Myocardial infarction
Investigations on suspicion of MI?
ECG, Troponin (if positive, coronary angiography, if negative, exercise tolerance test - ETT), Echo
Cardio, resp, GI and musc Ddx of chest pain?
ACS, stable angina, aortic dissection, pericarditis, pneumonia, PE, pneumothorax, oesophageal spasm, oesophagitis, gastritis, costochondritis
Where is the ST elevation seen in a lateral MI and what artery is affected?
V5, V6, I, aVL, circumflex artery
Ddx of collapse?
Hypoglycaemia - ABCDEFG
Cardio - vasovagal, arrhythmia, outflow obstruction, postural hypotension
Neuro - seizure
How to investigate Ddx of collapse?
Arrhythmias - ECG (see if there is long QT), cardiac monitor, 24 hour tape Outflow obstruction (aortic stenosis, HOCM on the left, PE on the right) - low volume/slow rising pulse, ejection systolic murmur, Echo Postural hypotension - lying/standing BP
What is long QT syndrome and what can cause it?
Abnormal ventricular repolarisation
Congenital: mutations in K+ channels, FHx of sudden death
Acquired: low K+/Mg2+ drugs
45M, fever, malaise, IV drug use, afebrile, Osler nodes, raised JVP, pansystolic murmur louder in inspiration, hepatomegaly
Infective endocarditis, mitral regurgitation
Ddx of raised JVP
Right HF - secondary to LHF, pulmonary HTN (PE, COPD) Tricuspid regurgitation (valve leaflets, R ventricle dilatation) Constrictive pericarditis (infection e.g. TB, inflammation e.g. connective tissue disease, malignancy)
65M, SOB, palpitations, HTN, DH Bendroflumethiazide, afebrile, irregular and fast pulse, dull percussion and coarse crackles L base
Pleural effusion secondary to HF
Pneumonia
ECG will show sinus tachycardia
What does sinus tachycardia indicate on ECG?
Sepsis, hypovolaemia, endocrine (thyrotoxicosis, phaechromocytoma)
What does SVT indicate?
Re-entry circuit
AVRT - short PR, delta wave, accessory pathway
AVNRT - circuit within AVN
What does AF indicate?
Thyrotoxicosis, ischaemia (muscle, valve, pericardium), chest infection (pneumonia, PE, cancer), alcohol
What does VT indicate?
Ischaemia, electrolyte abnormality, long QT
What is the management for SVT?
Vagal manoeuvres, adénosine (cardiac monitor), DC cardio version if haemodynamically compromised
Management for AF
Rhythm control - if onset over 48 hours, anti-coagulate for 3-4 weeks before cardioversion
Rate control - beta blocker, digoxin
Management of VT
If no haemodynamic compromise: IV Amiodarone
Look and treat underlying cause
ICD
Pulseless VT: defibrillate
What does S3 indicate?
S3 = poor ventricular filling
What does S1 and S2 indicate?
S1 = closure of mitral valve S2 = closure of aortic valve
What is the fixed wide splitting of S2
Fixed wide splitting of S2.= atrial septal defect
What is S4?
Associated with ventricular hypertrophy
65F, SOB, few hours, orthopnoea, 2 MIs in past, DH: aspirin, simvastatin, ramipril, bisoprolol, raised JVP, S3 heart sound, fine crackles, peripheral oedema
Acute HF
Management of acute HF?
Sit up, oxygen, IV furosemide, treat underlying cause
78M, unconscious, not breathing, no carotid pulse, low temp, ECG shows VF, what is the management?
Shock, CPR (2min), assess rhythm, adrenaline every 3-5min, amiodarone after 3 shocks, treat reversible causes
What is the treatment for asystole/PEA
CPR (3min), adrenaline every 3-5min, correct reversible causes
Ddx of pleuritic chest pain?
Pericarditis, PE, pneumonia, pneumothorax, pleural pathology
60m, SOB, sudden onset, COPD, on Symbicort and tiotropium, high pulse, raised JVP, scattered wheeze and creps, peripheral oedema, low O2 stats, low Hb
Pneumothorax
SOB Ddx dependent on timing?
Seconds: pneumothorax, PE, foreign body
Mins/Hrs: airways (inflammation/obstruction), chest infection (pus), acute HF (fluid)
Days/weeks: chronic of the above, ILD, malignancy/large pleural effusion, neuromuscular, anaemia/thyrotoxicosis
Management of pneumothorax
Primary:
<2 cm: discharge, repeat CXR
>2 cm: aspiration, if unsuccessful, chest drain
Secondary:
<2 cm: aspiration
> 2cm: chest drain
How to determine axis deviation
Look at I and II: is either of them overall negative? If yes, axis deviation
Look at aVL, is it overall positive?
Yes: left axis deviation
No: right axis deviation
Ddx of progressive SOB, dry cough and clubbing with normal FEV1/FVC ratio
Idiopathic fibrosing alveolitis
Connective tissue disease, RA
Drugs
Asbestosis (ship builder)
How to interpret CXR?
PA/AP CXR of name, DOB, taken on (date/time), RIPE (rotation, inspiration, penetration, exposure)
Look at each zone
Follow the periphery - pneumothorax, pleural thickness, costophrenic angles, diaphragm, heart, mediastinum
Types of shadowing seen on CXR?
Interstitial/alveolar shadowing
Reticulo-nodular shadowing
Homogenous shadowing
Masses/cavitations
What should be looked for in the hands in an abdomen exam?
Asterixis (liver flap) Bruising Clubbing Dupuytren's contracture Erythema Leuconychia
What can be seen on the chest in an abdo exam?
Gynaecosmastia, hair loss, excoriation marks, spider naevi
What can be seen on the abdomen in an abdo exam?
Abdo distention, caput medusae, scars
What does a right subcostal (Kocher’s) incision indicate?
Biliary surgery
What does a Mercedes-Benz incision indicate?
Liver transplant
What does a midline laparotomy incision indicate?
GI or any major abdo surgery
What does a McBurney’s (Gridiron) incision indicate?
Appendicectomy
What does a J-shaped (hockey stick) incision indicate?
Renal transplant
What does a low transverse (Pfannenstiel) incision indicate?
Gynaecological procedures?
What does an inguinal incision indicate?
hernia repair, vascular access
What does a loin incision indicate?
Nephrectomy
What can cause hepatomegaly?
Cancer (primary or secondary deposits)
Cirrhosis (early, usually alcoholic)
Cardiac: Congestive cardiac failure, constrictive pericarditis
Infiltration: fatty infiltration, haemochromatosis, amyloidosis, sarcoidosis, lymphoproliferative diseases
What are the causes of splenomegaly?
Portal hypertension, Haematological, Infection, inflammation
75M, epigastric and back pain, high pulse, low BP
Ruptured aortic aneurysms