|
|
(2 intermediate revisions by the same user not shown) |
Line 1: |
Line 1: |
| = Sinoatrial Block (SA Block) =
| | #REDIRECT [[Sino-atrial exit block]] |
| | |
| {| border="1"
| |
| |-
| |
| | Rate | Normal to slow, defined by duration of frequency of block
| |
| |-
| |
| | Rhythm | Irregular when a block occurs
| |
| |-
| |
| | P wave | Upright and uniform, except during the dropped beat
| |
| |-
| |
| | PR interval | Normal (0.12 - 0.20 sec), except during the dropped beat
| |
| |-
| |
| | QRS |Normal (0.06 - 0.10 sec), except during the dropped beat
| |
| |}
| |
| | |
| | |
| * Cardiac output will decrease, possibly causing syncope or dizziness.
| |
| * Occurs in some multiple of the PP interval.
| |
| * After dropped beat, cycles continue on time.
| |