What changes would be expected in the ventilation-perfusion ratio in the presence of excessive blood loss?
a. The ventilation-perfusion ratio initially decreases will increase then will decrease dramatically
b. The ventilation-perfusion ratio will increase.
c. The ventilation-perfusion ratio will decrease
d. The ventilation-perfusion ratio will remain constant
b. The ventilation-perfusion ratio will increase.
You might also like to view...
Which of the following offers a valuable model for EMS to consider when trying to reduce injury-related morbidity and mortality?
A) The Pan American Health Organization B) American Society for Testing Materials (ASTM) C) The fire service D) Drug Abuse Resistance Education (DARE)
How much pressure is lost to friction as 2,000 gpm travels through 1,500 feet of 8-inch, Schedule 40 pipe having a C of 100?
What will be an ideal response?
Arteries ________ because of the high pumping pressure they receive from the heart.
A. stiffen B. make a hissing sound C. expand D. pulsate
Select the appropriate diagnostic code using an ICD-9-CM code book for the diagnostic statements given in the following questions
Chronic gastric ulcer with obstruction