Exam (elaborations)
Cardiology — SVT & VT.
- Institution
- MedSurg Notes Nurse’s Clinical Pocket Guide
Cardiology — SVT & VT.
[Show more]
Seller
Follow
Content preview
Cardiology — SVT & VTA 35yr old gentleman has collapsed twice in the last month.
His brother died in his 20s of sudden cardiac death.
ECHO reveals features of HCOM & a 24 hour ECG shows several short runs of non
sustained VT.
How do you manage the non sustained VT? - ANS-Implantable
Cardiovertor-Defibrillator (ICD).
Non-sustained VT — ↑ risk sudden cardiac death.
⇒ ICD is first-line therapy.
A supraventricular tachycardia arises from where? - ANS-The atria or AV node.
Broadly speaking, tachyarrhythmias are classified, by site of origin, into what 2
categories? - ANS-- Supraventricular (SVT)
- Ventricular (VT)
How do manage ventricular tachycardia (VT)? - ANS-Haemodynamically stable:
- Amiodarone + Mg²⁺ infusion
- If VT recurs — repeat
- If fails to terminate — DC cardioversion
Haemodynamically unstable:
- Urgent DC cardioversion
+ determine & treat underlying cause
(low Mg, K, acidosis, ischaemia)
NB. Low energies to cardiovert VT (e.g. 50J)
In heart arrhythmias, what is pre-excitation? - ANS-Early activation of the ventricles due
to impulses bypassing the AV node via an accessory pathway.
, In management of an acute SVT,
a) what drug is given if vagal manoeuvres are unsuccessful?
b) what doses of this drug are given?
c) what is given if this drug fails to cardiovert the patient?
d) what is the final step if this fails? - ANS-a) Adenosine.
b) 6mg ⇒ 12mg ⇒ 12mg.
c) Verapamil.
d) Electrical cardioversion.
In management of an acute SVT, outline the methods of cardioversion in order that they
are attempted. - ANS-1. Vagal manœuvres
(e.g. carotid massage)
2. Adenosine
(6mg ⇒ 12mg ⇒ 12mg)
3. Verapamil
(5mg over 3mins)
4. Electrical cardioversion
(100J ⇒ 200J ⇒ 360J)
In Wolff-Parkinson-White syndrome, what name is given to the pathological accessory
pathway (AV bypass tract)? - ANS-*Bundle of Kent*.
Name 7 subtypes of supraventricular tachycardia. - ANS-- Sinus tachycardia
- Atrial tachycardia
- Multifocal atrial tachycardia (MAT)
- Atrial fibrillation / flutter
- AV nodal re-entrant tachycardia (AVNRT)
- AV re-entrant tachycardia (AVRT)
- Junctional ectopic tachycardia (JET)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.48. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now