Blood Plasma · Histology

What is the normal pH range of human blood plasma?

  1. 6.85 - 6.95
  2. 7.00 - 7.15
  3. 7.35 - 7.45
  4. 7.55 - 7.65
Show answer and explanation

Correct answer: 7.35 - 7.45

Plasma pH is tightly regulated between 7.35 and 7.45. This alkalinity is maintained primarily by the bicarbonate buffer system and the respiratory/renal systems.

Difficulty: Medium Question 11 of 20

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