The client presents to the emergency department after a motor vehicle crash. Vital signs on admission are heart rate 56, respiratory rate 16, blood pressure 150/90, and temperature 97°F
Which vital sign finding indicates a sympathetic nervous system response?
1. Respiratory rate
2. Temperature
3. Blood pressure
4. Heart rate
Correct Answer: 3
Rationale 1: A respiratory rate of 16 is within normal limits.
Rationale 2: A temperature of 97°F is within normal limits.
Rationale 3: Elevated blood pressure is a response of the sympathetic nervous system's fight-or-flight response.
Rationale 4: The heart rate of 56, while decreased, is a response of the parasympathetic nervous system.
Global Rationale: Elevated blood pressure is a response of the sympathetic nervous system's fight-or-flight response. The respiratory rate and temperature are within normal limits. The heart rate of 56, while decreased, is a response of the parasympathetic nervous system.
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