Which of the following is not an internal factor that affects the blood pressure? 

A. Cardiac output
B. Stress
C. Blood volume
D. Blood viscosity
E. Vasoconstriction


B. Stress
Stress is not an internal factor that affects the blood pressure.

Health Professions

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Proper ________ is essential to the medical office's written correspondence

Fill in the blank(s) with correct word

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Three PVCs in succession are called:

a. bigeminy. b. trigeminy. c. couplets. d. salvos.

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The premature separation of the placenta from the uterine wall is called:

A) placenta previa. B) spontaneous placentae. C) abruptio placentae. D) abortion.

Health Professions

A minimum collapse zone should be ____ times the height of the building.

A. 1.5 B. 2 C. 3 D. 4

Health Professions