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  2. QRS complex - Wikipedia

    en.wikipedia.org/wiki/QRS_complex

    To measure the QRS interval start at the end of the PR interval (or beginning of the Q wave) to the end of the S wave. Normally this interval is 0.08 to 0.10 seconds ...

  3. SAE J2452 - Wikipedia

    en.wikipedia.org/wiki/SAE_J2452

    SAE J1269 and SAE J2452 performed on new tires. SAE J2452 is a standard defined by the Society of Automotive Engineers [1] to measure the rolling resistance of tires. [2] Where the older standard, SAE J1269, produces measurements of rolling resistance under steady-state (i.e. thermally equilibrated) operating conditions, SAE J2452 produces measurements during a transient history of speed that ...

  4. Right bundle branch block - Wikipedia

    en.wikipedia.org/wiki/Right_bundle_branch_block

    The QRS duration must be more than 100 ms (incomplete block) or more than 120 ms (complete block). [9] There should be a terminal R wave in lead V 1 (often called "R prime," and denoted by R, rR', rsR', rSR', or qR). There must be a prolonged S wave in leads I and V 6 (sometimes referred to as a "slurred" S wave).

  5. Rhythm interpretation - Wikipedia

    en.wikipedia.org/wiki/Rhythm_interpretation

    There are 6 different sinus arrhythmia. [1] [2]A normal heart should have a normal sinus rhythm, this rhythm can be identified by a ventricular rate of 60-100 bpm, at a regular rate, with a normal PR interval (0.12 to 0.20 second) and a normal QRS complex (0.12 second and less).

  6. PR interval - Wikipedia

    en.wikipedia.org/wiki/PR_interval

    Schematic representation of a normal sinus rhythm EKG wave. In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200 ms in duration.

  7. The US cities with the best quality of life, ranked - AOL

    www.aol.com/us-cities-best-quality-life...

    Quality of life score: 7.0 Population: 229,247 Median household income: $68,814 Median home price: $321,874 Median age: 36 years old Known for: Richmond is a historic city founded in 1737, but ...

  8. How long is too long for Christmas decorations?

    www.aol.com/long-too-long-christmas-decorations...

    Artificial trees should be disassembled and stored in their original box or a tree bag to protect against dust and moisture. Keep all decorations in a cool, dry space, away from extreme ...

  9. The Best Time to Take Protein Powder for Maximum Benefits ...

    www.aol.com/best-time-protein-powder-maximum...

    So, these medications should not be taken at the same time as protein powder. To know for sure, speak to your health care provider. Additionally, pairing a fiber supplement with your scoop of ...

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