MSRA Flashcards
What is the first line treatment for narrow complex tachycardia with no adverse features?
Vagal Manouveres
What is the first line treatment for narrow complex tachycardia in a patient with severe heart failure?
Synchronised DC shocks
What is the first line treatment for Broad complex tachycardia in a patient presenting with BP 85/66?
Synchronised DC shocks
What is the first line treatment for broad complex tachycardia with no adverse features?
Amiodarone
What do you do if vagal manoeuvres fail for narrow complex tachycardia with no adverse features?
Adenosine (6mg first, then 12mg, then 18mg)
What are the steps for synchronised DC shocks?
3 attempts - then amiodarone 300mg IV over 10-20mins - and reshock after this
What antibiotic class can cause Torsades De Pointes?
Macrolides (e.g. azithromycin)
GIve some examples of macrolides
Azithromycin, clarithromycin, erythromycin
How do macrolides work
Inhibit bacterial protein synthesis - by inhibiting 50s Ribosome
Describe Torsades
Polymorphic ventricular tachycardia (characterised by changing of amplitude and twisting of the QRS around the isoelectric line
What is the first line in treatment of Torsades?
IV magnesium
What is Beurgers disease?
AKA thromboaniitis obliterans. Progressive inflammation and thrombosis of the small and medium arteries in the hands and feet - can present acute ischaemia or chornic progressive ischaemic changes. May result in gangrene and often requires amputation.
An MI in which territory is likely to cause bradycardia?
Inferior MI (right Coronary Artery) - supplies the AV node - ECG territory II, III, AVF
Inferior MI shows on which leads, and affects which cornoary artery
II, III, AVF, right coronary artery
Lateral MI shows on which leads and affects which coronary artery?
I, AVL, V5, V6 - circumflex
Describe First degree heart block
A fixed increased PR interval
Describe second degree heart block
Type 1 - increasing PR interval and then dropped QRS
Type 2 - Consisten PR interval furation with interrmitently dropped QRS
Describe third degree heart block
P waves and WRS complexes have no association with on another due to atria and ventricles functioning independently
What is the first line for chronic heart failure
ACE I + Beta blocker (one drug should be started ata time and NICE advise that clinical judgement is used when determining which one to start first
DO you give antibiotic prophylaxis to prevent infective endocarditis in the UK for dental procedures
No none is required
Acute worsening of heartfailure - with acidosis - not responding to treatment what do you do? In a patient on 15l O2
Consider CPAP
What is Ivabridine
Ivabradine - is a negative chronotrope that acts specifically on the SAN (CYP4A2)
What is Ranolazine used for?
Angina
What is the mechanism of action of spironolactone?
Aldosterone antagonist
What is the first line treatment of Angina?
Beta blocker or CCB (such as verapamil)
For fibrinolysis - which drug do you give before hand?
Anti-thrombin drugs such as fondaparinux
Treatment of bradycardia and shock
Atropine (500mcg repeated up to a max of 3mg)
For AF if you cardiovert someone successfully what do you do with the aticoagulation
Following elective DC cardioversion, in patients at high risk of stroke, anticoagulation should be continued long-term, even if they remain in sinus rhythm. Therefore, the correct answer is continue anticoagulation lifelong. This would need to be regularly evaluated against bleeding risk.
What increases and decreases BNP levels
Increases BNP Level
Left ventricular hypertrophy
Ischaemia
Tachycardia
Right ventricular overload
Hypoxaemia (including pulmonary embolism)
GFR < 60 ml/min
Sepsis
COPD
Diabetes
Age > 70
Liver cirrhosis
Decreases BNP levels
Obesity
Diuretics
ACE inhibitors
Beta-blockers
Angiotensin 2 receptor blockers
Aldosterone antagonists
what is the most common cause of death post MI?
VF
What medication causes anal ulceration?
Nicorandil
How long do you treat an unprovoked PE with anticoagulation?
6 months
What valve is most commonly affected in IVDUs with IE?
Tricuspid (right)
What statin and at what dose is required for secondary prevention of MI?
80mg Atoirvastatin
What statin and at what dose is required for primary prevention of MI?
20mg Atorvastatin
What are the two most commmon causes of headaches in children?
- Migraine
- Tension type headaches
What are breast fed babies at risk for?
Vitamin K deficiency (haemorrhagic disease of the newborn)
Maternal use of antiepileptics also worsen this
All newborns offered vitamin K in the UK IM or orally
What in Pabrinex can help prevent the development of Wernicke’s encephalopathy?
Vitamin B1 (thiamine)
In the treatment of anaphylaxis how often can you give adrenaline?
Every 5 minutes - any quicker can cause side effects tachy + HTN and any slower is undertreatment
Patient planning to kill himself - as he has no hope - what is the first step?
Crisis team referral first and then triage to ED
What is associated with vitiligo?
Alopecia areoata
The opposite acanthosis nigricans is associated with Cushings
Recall the HTN flow chart
HTN + TIIDM or age<55 and not of black african or afrocaribean descent
- ACEi/ARB
- CCB or thiazide-like diuretic
- CCB or thiazide like diuretic (whichever you didn’t add in 2)
- Confirm resistant HTN
- Seek expert advice
- Low dose spiro if blood potassium <4.5
- alpha/beta blocker if K+ >4.5
Age >55 or black African or afrocaribean descent
1. CCB
2. +ACEi/ARB or thiazide like diuretic
3. CCB + ACEi/ARB + Thiazide like diuretic
4. Confirm resistant HTN
- Seek expert advice
- Low dose spiro if K+ <4.5
- Alpha/beta blocker if K+ >4.5
What is an aboslute contraindication to COCP?
Contraindicated in those above 35 who smoke more than 15 cigarettes per day (increased risk of cardiovascular events) - risk increases with age and number of cigarettes smoked daily
Swelling in left side of neck below the angle of the jaw (tender to palpation) + pyrexial + tender lymphadenopathy
Sialadenitis - inflammation of the salivary fland secondary to obstruction by a stone impacted in the duct - lmost common tumour causing this is pleomorphic adenomas (benign, mixed parotid tumour). Managed conservatively - eat more lemons to wash out stones
Grading system of internal haemorrhoid
Grade 1 - no prolapse just prominent blood vessels
Grade 2 - prolapse upon bearing down spontaneous reduction
Grade 3 - prolapse upon bearing down - requires manual reduction
Grade 4 - prolapse with inability to be manually reduced
2 minute episode of olgactor halluncatinations whilst retaining consciousness. What is the diagnosis
Focal aware seizure
Can you recall the GCS scale
Motor (6)
6. Obeys command
5. Localises to pain
4. Withdraws from pain
3. Abdnormal flexion (decoritcate posture)
2. Extending to pain
1. None
Verbal response (5)
5. Orientated
4. Confusion
3. Words
2. Sounds
1. None
Eye opening (4)
4. Spontaneous
3. Speech
2. To pain
1. None
What risks classically increase with tamoxifen usage?
VTE + Endometrial cancer - women should be counselled about this prior to starting treatment
Overdose of paracetamol management
Activated charcoal if less than 1 hour - if over this then NAC