Cardiology Flashcards
First line management of acute pericarditis?
NSAID and colchicine
Most appropriate drug for rate control in AF?
Beta blockers e.g. bisoprolol
(Asthma is a contra-indication for beta blockers)
Digoxin if patient has co-existent heart failure
What electrolyte imbalances are important causes of ventricular tachycardia?
- Hypokalaemia
- Hypo-magnesiumaemia
What is the next step when treating someone with SVT after vagal manouvres?
Adenosine
What is used to treat Torsades de pointes?
IV magnesium sulfate
What medication can be given to patients who require anticoagulation but do not want regular monitoring?
DOACs eg. rivaroxaban
How to treat a haemodynamically unstable patient with atrial fibrillation?
Immediate electrical cardioversion followed by thromboprophylaxis
(If he was clinically stable and had AF >48 hours then risk of stroke means thromboprophylaxis followed by cardioversion)
Treatment for patients with tachycardia along with signs of shock, myocardial ischaemia or heart failure?
Up to three synchronised DC shocks
What are the NICE guideline recommendations for patients with acute phase of an ischaemic stroke with underlying AF?
Aspirin 300mg OD for 2 weeks
Then consideration of anticoagulants (warfarin or DOAC) for further stroke prevention) - in the absence of haemorrhagic stroke
Which anti-platelet medications should be given after a stroke?
Aspirin 300mg OD for 2 weeks then 75mg clopidogrel OD for life
(Unless patient has indication for anticoagulant e.g. AF)
Initial drug therapy for Afro-Carribean with hypertension?
Calcium channel blocker e.g. amlodipine
What is the half-life of adenosine?
8-10 seconds
Which antibiotic interacts with warfarin to give a raised INR?
Clarithromycin
What investigation is most helpful in diagnosing infective endocarditis?
Blood cultures
Set of three cultures
According to NICE guidelines, which medications should a patient be put on following a STEMI?
- Beta blocker
- ACE inhibitor
- Dual anti-platelet therapy
- Statin
What is the next step in management in a STEMI patient who has undergone fibrinolysis with persistent ischaemia?
Transfer for PCI
Best initial management for a 50-year-old caucasian man with hypertension?
Ramipril (ACE inhibitor)
What is the main ECG abnormality seen with hypercalcemia?
Shortening of the QT interval
What is the treatment for sinus bradycardia with adverse features?
500mg IV atropine
What is the next management step in a patient with suspected PE (due to sore, red calf, post-surgical)? CTPA is negative
Proximal leg vein ultrasound
What drug do macrolide antibiotics (clarithromycin) interact with?
Statins
What chemical biomarker is the best for detecting re-infarction?
CK-MB
- Remains elevated for 3-4 days following an MI
- Troponin may be elevated for 10 days
What are the features of Dressler’s syndrome?
Dressler’s syndrome = autoimmune reaction to proteins formed in healing post-MI
- Central, pleuritic chest pain that is worse when lying flat (recurrent pericarditis) and fever
- Raised ESR
- Recurrent pleural effusions
- Treatment with NSAIDs
Features of left ventricular free wall rupture following an MI?
- Sudden heart failure
- Raised JVP
- Muffled/quiet heart sounds
Free wall rupture due to weakening following MI = tamponade = triad of raised JVP, pulses paradoxus, muffled/quiet heart sounds