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Physiology mcq 11 Questions 151-165 Physiology multiple choice questions for the primary FRCA examination. Discuss answers and explanations area

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13).SINUS ARRHYTHMIA - 04-14-2005, 03:37 PM

a) is associated with p waves of varying shapes in the ECG
b) is associated with variable R-R intervals
c) is most marked during breath holding
d) is more marked at 70 years of age than 20 years of age
e) is more marked during exercise than at rest

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Re:13).SINUS ARRHYTHMIA - 07-16-2005, 05:44 PM

a. sinus arrhythmia is normal complexes with increaesd and decreased R-R during breathing cycle phases.
b. see above.
c. not increased by breath holding.
d. more marked in <30 years age.
e. not increased by exercise.
 
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