Term
| when dealing with axis the vector will move toward ___________ and away from any _______ |
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Definition
| toward hypertrophy and away from any infarct |
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Term
| which two leads are most commonly used to determine axis? |
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Definition
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Term
| lead I positive and AVf positive = |
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Definition
|
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Term
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Definition
| LAD but you must also check lead II if it is still positive then the axis is still normal |
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Term
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Definition
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Term
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Definition
| indeterminate axis: although it may help to see which lead is at isoelectric point. This lead will be perpindicular to the vector |
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Term
| considering V2 the QRS is usually: positive or negative? |
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Definition
| negative: vector is moving posteriorly |
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Term
| among the chest leads which are normally isoelectric? |
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Definition
|
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Term
| which chest leads are negative? |
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Definition
|
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Term
| which chest leads are positive? |
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Definition
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Term
| when the isoelectric point rotates to V1-V2 this is known as: |
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Definition
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Term
| which lead gives the best info about the atria? |
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Definition
| V1; directly over the atria |
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Term
| with atrial enlargement the p wave is usually: |
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Definition
| diphasic (both positive and negative) has deflections above and below the baseline |
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Term
| if the initial portion of the diphasic p wave is larger then it is: |
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Definition
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Term
| If the height of the p wave in any of the LIMB leads exceeds ___mm suspect right atrial enlargement. |
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Definition
|
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Term
| if the diphasic p wave has a larger terminal component then there is: |
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Definition
| left atrial enlargement usually caused by mitral valve stenosis |
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Term
| in right ventricular hypertrophy there is a large _ wave in V1. |
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Definition
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Term
| What is the formula for LVH interpretation? |
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Definition
| Swave in V1orV2 + R wave in V5orV6 = >35mm |
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Term
| What is the formular for RVH interpretation? |
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Definition
| Rwave>Swave in V1 and Rwave get smaller as you move to V6 |
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Term
| which lead gives the best picture of the atrium? |
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Definition
|
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Term
| what is the formula for RAH interpretation? |
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Definition
Pwave > 3mm tall in lead II;
Right Atrial Hypertrophy "Reaches" |
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Term
| what is the formula for LAH interpretation? |
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Definition
Pwave in Lead II >3mm wide;
Left Atrial Hypertrophy is "long" |
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Term
| what is the most common cause of left atrail hypertophy? |
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Definition
|
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Term
| define the strain pattern: |
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Definition
| inverted T waves in V5-V6 |
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Term
| what is the EKG sign of ischemia? |
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Definition
|
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Term
| what is the EKG sign for acute injury? |
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Definition
|
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Term
| what EKG finding is indicative of infarct? |
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Definition
| pathologic Q waves; the very first deflection in QRS complex is down. |
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Term
| which leads represent the anteroseptal wall of the left ventricle? |
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Definition
|
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Term
| which leads represent the anterior wall of the left ventricle? |
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Definition
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Term
| which leads represent the anterolateral wall of the left ventricle? |
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Definition
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Term
| which leads represent the inferior wall of the left ventricle? |
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Definition
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Term
| which leads represent the lateral wall of the left ventricle? |
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Definition
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