ECG quiz #1 + answer

Re: ECG quiz #1 + answer

S-J — Thu, 23 Jan 2014 23:34:54 GMT

my brain really struggles with ECGs so would love you to keep them coming, Ta

Re: ECG quiz #1 + answer

Susan Jackson — Wed, 15 Jan 2014 00:05:01 GMT

Yes, I would like another one

Re: ECG quiz #1 + answer

joanna — Tue, 14 Jan 2014 01:55:00 GMT

I would like more ECG's too please!

Re: ECG quiz #1

Fuzzyduck — Mon, 13 Jan 2014 22:07:15 GMT

Brill, I wasn't far off! Great to test if my brain still functions! More would be fab

Re: ECG quiz #1

maylane — Mon, 13 Jan 2014 16:13:01 GMT

Love this! Please could you do some more.

Re: ECG quiz #1

Carolyn Edwards — Mon, 13 Jan 2014 14:11:01 GMT

Hi, I'd be interested to know what would cause this and whether we should be concerned that it's happening?

I'd also like another ECG please.

Re: ECG quiz #1

Mike Martin — Mon, 13 Jan 2014 10:30:47 GMT

This abnormality is something that might be seen on an ECG monitor during routine anesthesia, and since most monitoring of anesthesia is performed by nurses, I thought this might be something that might interest you?

Here's the answer....

Comments below the ECG.

So a mark of each of the follow points:

The underlying rhythm is sinus in origin: with each P wave leading to a QRS and T - so a sinus rhythm.
The sinus rhythm has a degree of variation in the rate - so a sinus arrhythmia.
The 6th complex: the QRS morphology is different to the normal one coming down through the AV node - so it is bizarre: and hence it is aventricular ectopic.
The ventricular ectopic is early in timing, ie. premature, so it is aventricular premature complex (VPC).
Heart rate is "per minute", but there is not a minute of tracing here to determine that. So an "estimate" of the rate can be given by counting the first 3 seconds. There are 5 sinus beats in the first 3 seconds which equates to a rate of 100/min. I'm really not too worried about being over exact on the rate and the heart rate naturally varies all the time anyway, so a rate anywhere from 80-110/min would probably get a mark from me.

The "exam-style" answer would be: There is an underlying sinus arrhythmia at 90-100/min with one ventricular premature complex (VPC).

All just a bit of fun but hopefully you enjoyed it.

Let me know if you would like another ECG?

Re: ECG quiz #1

Fuzzyduck — Wed, 08 Jan 2014 18:26:57 GMT

Underlying rate is 80bpm, rhythm is sinus arrythmia with 1 supra ventricular premature complex?