31. The most common type of sinus arrhythmia, the one related to respiration, is: a. a normal...

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Medical Sciences

31. The most common type of sinus arrhythmia, the onerelated to respiration, is:
a. a normal phenomenon commonly seen in middle agedadults
b. caused by decreased vagal activity
c. caused by the sympathetic effect on the SAnode
d. extremely rare in children
20. Monitoring lead MCL1 is obtained by attaching thepositive electrode from lead ______________:
a. II, to the left chest below the clavicle
b. II, to the middle of the sternum at the level of thefourth intercostal space
c. III, to the left side of the sternum in the fourthintercostal space
d. III, to the right side of the anterior chest in thefourth intercostal space next to the sternum
10. The vagus nerve is part of the parasympatheticnervous system. Slowing of the heart rate by the vagus nerve occurswhen:
a. The nerve fires more rapidly
b. The nerve is blocked by atropine
c. The nerve is severed
d. The patient is given a stimulant

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Answer1 a a normal phenomenon commonly seen in middle aged adults Explanation respiratory sinus arrythemia is normal phenomenon in which heart rate increase in respiration See Answer

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