Sinoatrial block: Difference between revisions

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(Redirected page to Sino-atrial exit block)
 
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= 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.

Latest revision as of 06:36, 30 March 2011

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