The nurse records the finding of normal sinus rhythm (NSR) when the P, Q, R, S, and T are all present in the electrocardiographic complex and a(an):
1. rate of 82.
2. PR interval of 0.36 second.
3. QRS of 0.16 second.
4. inverted T.
1
NSR requires the presence of P, Q, R, S, and T waves, in that order, and all pointing in the same direction, with a rate of 80 to 100. Normal intervals are PR, 0.12 to 0.20 second, QRS, less than 0.10 second.
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a. bronchial c. tracheovesicular b. bronchovesicular d. vesicular
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