"Why did you call for EMS today?" helps to determine the:

A. chief complaint.
B. past medical history.
C. medications.
D. provocation of pain.

Answer: A. chief complaint.

Health Professions

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Which one of the following helps the body stay warm?

A) Vasodilation B) Windy environment C) Shivering D) Decreased heart rate

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Sleep spindles occur at a frequency of ____ cycles/s

a. 4 to 7 c. 14 to 16 b. 9 to 13 d. <3.5

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