Arterial blood gases are measured in a laboratory test to determine the extent of compensation by the buffer system. There are major regulatory systems of body pH. Which information best describes the physiologic regulatory system?
1 . Regulated by the lungs
2 . Regulated by the kidneys
3 . Regulated by blood and cellular activities
4 . Regulated by buffer systems
A) 1, 2
B) 1, 4
C) 2, 3
D) 3, 4
A
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The three major regulatory systems of body pH are chemical (buffer systems), biologic (blood and cellular activities), and physiologic (lungs and kidneys).
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