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ECG Strips
Helpful hints and things to remember for ECGS
| Question | Answer |
|---|---|
| Where does the transition zone occur on a normal ECG | between V2 and V4 |
| In which two abnormal heart rhythms do you have a reversal of septal depolarization | LBBB and WPW |
| Which abnormality has delta waves and where is the best place to look for these | WPW, V6 |
| Which leads do you look for a positive RSR' with a slur or notch. What is the diagnosis | Lead I, LBBB |
| Which leads do you look for a bi-phasic RSR' with a slur or notch. Whats the diagnosis | Lead I, RBBB |
| RSR' in V1-V3 | RBBB |
| RSR' in V4-V6 | LBBB |
| What can an early transition be a sign of | post-MI |
| Which two leads are indicative of the Septum | V1 and V2 |
| Which leads are indicative of changes in the ANTERIOR heart | V2-V4 |
| In diagnosiing hypertrophy you measure the ___ wave of leads V1-V3 and _____ wave of V4-V6 | S, R |
| The addition of S and R waves from the various leads used to look for hypertrophy shoudl add up to _____ if hypertrophy is occuring | 35+ |
| What interval is shortened in WPW | PR |
| What age is hypertrophy able to be diagnosed at | 35 |
| If lead I is positive and Lead aVF is negative, in what quadrant is the electrical axis | IV |
| If lead I is positive and Lead aVF is positive, which quadrant is the Electrical axis in | I |
| What is the reciprical lead of aVL | Lead III |
| Which leads have postive T waves, usually | V1, aVL, aVF, and III |
| What is the name given to abnormally large T-waves | hyperacute T-waves |
| Under what condition is it nearly impossible to make a diagnosis of MI | LBBB |
| When looking for MI, finding a elevated ST segment means you should immeadiatley look where next | the recipricol lead |
| What constitutes a bifascicular block | LBBB + LAFB |
| In wat age range do can inverted T-waves be normal | 12-18 (the overall "young" population) |
| Where will people with LVH have ST-depression and what is this called | High lateral leads (I, aVL, V4-V6), LVH w/ strain |
| If your examining a ECG and T-waves are primary(Both +), what may be happening | myocardial ishemia |
| If the ORS terminal is positive, the T-wave will be _____ and vice versa | inverted |
| Are the discharges or depolarizations from the SA and AV node able to be seen on an ECG | NO |
| T-waves represent what on an ECG | ventricular repolarization |
| Which leads allow you to look at the inferior portion of the heart | II, III, and aVF |
| `Which leads look at the right ventricle | none |
| which leads look at the posterior heart | none |
| What are the recipricol leads for the anterior and lateral portions of the heart | II, III, aVF |
| Which leads can you expect a Q-wave | V4-V6, I, and aVL |
| A widening of the QRS that DOES NOT fit either RBBB or LBBB is classified as a.... | IVSD |
| In LBBB and RBBB, if you have a QRS ending in positive, what shoudl the T-wave look like? What if it doesn't look like this | inverted, if not it coudl mean ishemia (primary T-waves) |
| When the ST segement moves toward the QRS, it becomes concave ____, representing the idea of what | down, inflection point |
| ST changes in recipricol leads are idicative of what. SPECIFFICALLY DEPRESSION! | MI |
| Q waves of 1mm deep or .4sec wide may be indicative of what | OLD MI |
| What is a psuedoinfarction pattern | ST elevation, concave down, V1-V3 in a LVH |
| If you diagnose a LBBB, can you then diagnose ischemia | no |
| ST elevation concave up, elevation in most leads, and J-points are indicative of what | benign normal variant |
| ST elevation in almost all leads... | acute pericarditis |