ECG Problems. 4th Edition. Authors: John Hampton. eBook ISBN: eBook ISBN: Paperback ISBN: ECG. PROBLEMS. John R. Hampton. Emeritus Professor of Cardiology First edition ECG in Practice, 4th edn, respectively (written by Professor. ECG Problems John R. Hampton. This third edition includes real clinical case histories and their accompanying ECG readouts. صيغة الكتاب: pdf.
|Language:||English, French, Portuguese|
|Genre:||Science & Research|
|ePub File Size:||17.32 MB|
|PDF File Size:||9.26 MB|
|Distribution:||Free* [*Sign up for free]|
ECG Problems by John Hampton, , available at Book Language English; Edition Revised; Edition Statement 4th Revised edition. ECG Problems, 4e John R. Hampton DM MA DPhil FRCP Apr For this Fourth Edition over 30 new ECGs have been included. pdf. John R Hampton ECG problems-Churchill Livingstone Elsevier Helius and Chartwell Illustrators ECG Problems FOURTH EDITION John R.
The popularity of the book seemed to be largely due to the systematic approach that we had taken in mastering this complex skill. Whilst we were happy with the original book, we felt that there was scope to develop it further. There are two new chapters in this second edition that we feel add greatly to the usefulness of the book. Throughout the book, there are numerous references to arrhythmias that you are likely to encounter in practice, but we felt that there should be a dedicated chapter to help you understand and recognise them.
Both these new chapters adhere to the principles we followed when we started work on the first edition: that the text should be accessible and relevant to all practitoners, regardless of their experience, and that the text should always be supported with relevant exercises to reinforce learning.
Angela is a qualified nurse with over 20 years of clinical experience in Cardiology.
150 ECG Problems
She is a qualified teacher and for many years combined her clinical work with education in the roles of Practice Educator for Cardiology and as Senior Lecturer at Thames Valley University, Berkshire where she set up and ran the Coronary Care Nursing course.
She lives in Oxfordshire with her husband John and two children Thomas and Ben.
Andrew has extensive experience as an educator and has a clinical background in Cardiology and Cardiac ICU. He lives in London with his wife Zoe and two children Lara and Alex. This test is frequently used for patients who have heart problems and is an important diagnostic procedure.
ECG abnormalities can occur in healthy individuals; and it can also be possible for a person to have a heart attack and yet have a normal ECG. The nature of the abnormality and its effect on the patient influence the clinical importance of the findings, so the ECG should never be used in isolation. Before we start to interpret the ECG, it is important to learn how to obtain a readable recording see fig 1. We will learn in the following chapters that slight changes can have huge implications for the patient.
These days it is common for ancillary staff to take on the task of recording ECGs. To the untrained eye a recording may seem readable but it is not until we learn to interpret an ECG recording that we really gain an understanding of the importance of producing a readable tracing. It is possible to misdiagnose patients or miss their diagnosis if the recording is not clear.
Before interpreting the ECG, it is therefore essential to ensure that the recording was obtained correctly. Common errors are incorrect paper speed and standardisation, artefact and incorrect lead placement. Any of these problems can make it extremely difficult, and in some cases impossible, to measure the intervals and the segments that we are going to learn about in this book. Paper speed and standardisation The ECG is made up of a series of horizontal and vertical lines that measure the duration and amplitude of the various deflections.
The small boxes on the paper are 1 millimetre mm in height and I mm in width. The paper speed should be printed on the ECG itself when it is recorded see fig 1. A standard deflection a box that looks like half a rectangle should be inscribed at the beginning or end of the ECG.
The ECG is usually standardised so that the amplitude of a 1 millivolt impulse causes a deflection of 10 mm see fig 1. An increased amplitude or voltage usually indicates increased muscle mass of the heart. Figure 1. Artefact To obtain a good-quality ECG tracing you need to make sure that there is no outside interference, as this can create artefact.
The three most common causes of artefact are: 1 mains interference 2 patient movement 3 wandering baseline.
150 ecg problems 4e pdf
Mains interference Mains interference may produce a fuzzy trace. Too much or too little heat stimulus will produce a tracing that is too thick or too faint.
For this reason, any pumps or electric fans situated nearby should be switched off or left to run on battery while the ECG is being recorded.
Interference can also occur if the patient is in contact with metal, such as the end of the bed, or if an ECG lead is in contact with metal e. Recording the ECG with the machine on battery status instead of mains also helps to eliminate mains interference. Patient movement If the patient is tense or moving during the recording, artefact will result. What may be a routine procedure to a healthcare professional is not always a routine procedure to a patient.
Learning that the healthcare professional wants to take a tracing of their heart is not exactly conducive to relaxation! For instance, patients have been known to express concern that they might get electrocuted if the healthcare professional gets the leads in the wrong order!
For all these reasons it is important to explain to the patient the aim of the procedure, that it will not hurt, that it will only take a few minutes and that it will help if they can relax as much as possible, as this will produce a clearer recording. It is often helpful to ask patients to close their eyes and imagine themselves somewhere relaxing. Many patients feel embarrassed about having their chests exposed for an ECG recording. Always ensure their privacy during the recording.
Remember also that some patients may concentrate on your facial expression in an attempt to assess your reaction to the ECG as it is being printed. You should therefore try to keep your expression as neutral as possible.
This problem is often caused by poor electrode contact with the skin.
It may also be necessary to dry the skin if the patient is sweating, or clean the skin if talcum powder has been applied. Ensure that the skin is completely dry after cleaning. Lead placement ECG electrodes must be placed in the correct positions on the body.
If they are not, changes could appear on the recording that are simply caused by looking at the heart from a slightly different angle. This could easily lead to misdiagnosis. The limb leads are labelled: R right , L left , F foot and N neutral.
150 ECG Problems. David Adlam, Jo Hampton, John R. Hampton
Successfully reported this slideshow. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads.
You can change your ad preferences anytime. Upcoming SlideShare. Like this document? Why not share!
Embed Size px. Start on. Show related SlideShares at end. WordPress Shortcode. Kimberley Follow. Published in:The full ECG is reproduced and a study of it with the case history should be enough to give an answer. An EP study is performed via a right-sided cardiac catheterization : a wire with an electrode at its tip is inserted into the right heart chambers from a peripheral vein, and placed in various positions in close proximity to the conduction system so that the electrical activity of that system can be recorded.
On the back the case is examined, with a description of the main features of the ECG along with a clinical interpretation and a "what to do" section.
Not all aspects of an ECG rely on precise recordings or having a known scaling of amplitude or time. Normal rhythm produces four entities — a P wave, a QRS complex, a T wave, and a U wave — that each have a fairly unique pattern. A complication of this is when the atria and ventricles are not in synchrony and the "heart rate" must be specified as atrial or ventricular e. Joints of the Lower Limb. Progress in Digital Angiocardiography.
Tell them to relax and rest their arms at their 2 3 4 5 6 7 8 sides and to loosen any items of clothing that are tight or may cause them discomfort. Is the skin excessively hairy?