Normal Electrocardiogram

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Normal Electrocardiogram

ECG or Electrocardiogram, is recording of electrical activity in the heart.
The elctrocardiography is based on two basic principles.
1. When the electromagnetic force flows towards the positve electrode of a lead, the ecg would record an upward or positive deflection.
2. When the electomegnetic force flows away from the positve electrode of a lead or towards the negative electrode the ecg would record a downward or negative deflecton.
The electrocardiografic deflections are termed as P, QRS, T, and U.

Diagramatic representation of basic electrocardiografic deflections

The P wave represents atrial activation, the QRS complex represents ventricular activation, T wave represents ventricular recovery. The interpretation of U wave is uncertain. The ST segment, T wave and U wave together represent the ventricular recovery. The other significant portions of the ecg deflection are PR interval, QRS duration, ST segment.
A routine electrocardiogram consists of 6 Limb leads and 6 Chest leads. The Limb Leads are marked as I, II, III, aVR,aVL, aVF and the Chest Leads are V1, V2, V3, V4, V5, V6. The limb leads are placed on the four limbs and the chest leads are put on the mid chest and the left half of the chest.
Normal pattern of electrocardiografic deflections in various leads
Angina Pectoris
Stress induced Electrocardiogram in a patient of Angina Pectoris
TMT
This entry was posted in Diseases & Conditions by Manbir & Gurpreet. Bookmark the permalink.

About Manbir & Gurpreet

Gurpreet Kaur’s journey in this world .... Gurpreet Kaur was a Musician. She was a singer and a composer of music. Her interest was composing and singing Gurbani Shabads in Indian Classical style. She sang Shabads in All the Raags mentioned in Sri Guru Granth Sahib Ji. She also taught Gurmat Sangeet at Gurmat Gian Missionary College, Jawadi, Ludhiana. Elder child to Pushpinder Kaur and Dr. Brig. Harminder Singh, was born in Amritsar on 13th Jan 1962. She attended various convent schools as a child because her father would get frequent Army postings as a dental surgeon. She graduated with Music Honors from Govt. College for Women, Chandigarh. Music was her hobby and she composed and sang Raag based Gurbani Shabads. Doing Kirtan was part of growing up nurtured by her parents. She learned music from her father Dr. Brigadier Harminder Singh who was a dental surgeon in Indian Army and a very good singer himself. Gurpreet’s Bhua (father’s sister), Ajit Kaur retied as a Head of Department of Music from Govt. College for Women Ludhiana, and was a renounced Punjabi singer of her time. Gurpreet Kaur also learned nuances of Indian Classical Music from Pandita Sharma. She was a mother of three children, and a grandmother. Her daughter Keerat Kaur is a Computer Engineer. Her two sons Gurkeerat Singh and Jaskeerat Singh are doctors in USA. Her daughter Keerat Kaur too was part of her group ~ Gurmat Gian Group. Gurpreet Kaur left this world at the age of 54yrs on 12th Sept 2016 in Baltimore USA. She had recorded around 25 cds of Gurbani Keertan. 'Raag Ratan' Album (6 CDs) is a Compilation of Shabads in All the 31 Sudh Raags of Sri Guru Granth Sahib Ji. 'Gauri Sagar' Album (3 CDs) is a Compilation of All forms of Raag Gauri in Sri Guru Granth Sahib Ji. 'Nanak Ki Malhaar' ~ ((3 CDs) is an album of Raag Malhar Shabads in various forms of Malhar. 'Gur Parsaad Basant Bana' ~ (3 CDs) is an album of Shabads in Raag Basant sung in various forms of Raag Basant. Har Ki Vadeyai Sarni Aayea Sewa Priya Kee Preet Piyaree Mohan Ghar Aavho Karo Jodariya Mo Kao Taar Le Raama Taar Le Tere Kavan Kavan Gun Keh Keh Gawan Mera Baid Guru Govinda Saajanrraa Mera Saajanrraa

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