Reading the ECG: The Fast Trace

What this deck covers

Reading the ECG: The Fast Trace in twelve illustrated clinical cases with worked explanations – case presentations built around clinical images, radiology, teaching illustrations and real laboratory data, with the reference range beside every value a case quotes. This visual, data-interpretation style of practice suits candidates preparing for MRCPCH AKP in particular, alongside Saudi and Gulf licensing examinations such as the Arab Board, DHA and OMSB. Each case gives you a clinical vignette, four options, the correct answer, and an explanation of why each of the other three is wrong.

The twelve cases, in order

1. Finding the atria on a fast trace
2. How it started, and how it stopped
3. The baseline between the complexes
4. Complexes that are not quite equal
5. A rate an infant cannot reach
6. What the recording during it showed
7. Regularity you can actually measure
8. Two rates on the same strip
9. A fast rate with an explanation
10. What the narrow complexes tell you
11. P waves at speed, and where to look
12. The seconds after it stops

What this deck teaches

• Find the atrial activity before anything else. At speed the P wave hides inside or just behind the complex. A deflection in V1 that the sinus trace does not have is the atrium.
• Abrupt at both ends. A rhythm that starts between one beat and the next, and stops the same way, did not warm up and did not wind down.
• Describe the baseline, do not name it. A continuous saw-toothed baseline between the complexes is an appearance to report; the name follows from the rates.
• Count both rates on the same strip. The atrial rate and the ventricular rate are separate measurements, and their ratio is often the whole finding.
• Rate thresholds differ by age. An infant at 260 is beyond anything sinus rhythm produces. The same rate in a newborn crying is a different conversation from one in a teenager.
• Regularity is measured, not eyeballed. Identical to the millisecond is a finding. Nearly regular is a different finding, and the eye cannot tell them apart at 200 a minute.

Exam pearls from this deck

• At speed the atrium hides behind the complex. The old trace finds it.
• Abrupt at both ends is a finding. Gradual at both ends is a different one.

The twelve worked cases in this deck, with the images and the full explanation of every option, are part of Pediatric Case Review membership. See what is included, or start with the free Pediatric Exam Review Sets.

More from this system: all cardiology illustrated case decks · cardiology board questions for bank-style drilling · the free Pediatric Exam Review Sets · pediatric reference values.