A 21-year-old man is brought to the emergency department 45 minutes after an automobile collision. He hemorrhaged for 2 minutes immediately after the accident, blood loss was approximately 15% of total blood volume Blood pressure on arrival in the emergency department is 95/70 mm Hg. Which of the following is most likely responsible for maintaining his blood pressure? A) Decreased mean systemic filling pressure B) Decreased splanchnic blood volume C) Decreased sympathetic nerve traffic to the skin D) Increased hydrostatic pressure in capillaries E) Reflex decrease in renal sympathetic nerve activity
A 21-year-old man is brought to the emergency department 45 minutes after an automobile collision. He hemorrhaged for 2 minutes immediately after the accident, blood loss was approximately 15% of total blood volume Blood pressure on arrival in the emergency department is 95/70 mm Hg. Which of the following is most likely responsible for maintaining his blood pressure? A) Decreased mean systemic filling pressure B) Decreased splanchnic blood volume C) Decreased sympathetic nerve traffic to the skin D) Increased hydrostatic pressure in capillaries E) Reflex decrease in renal sympathetic nerve activity
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A 21-year-old man is brought to the emergency department 45 minutes after an automobile collision. He hemorrhaged for 2 minutes immediately after the accident, blood loss was approximately 15% of total blood volume Blood pressure on arrival in the emergency department is 95/70 mm Hg. Which of the following is most likely responsible for maintaining his blood pressure?
- A) Decreased mean systemic filling pressure
- B) Decreased splanchnic blood volume
- C) Decreased sympathetic nerve traffic to the skin
- D) Increased hydrostatic pressure in capillaries
- E) Reflex decrease in renal sympathetic nerve activity
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