21. Which of the following statements refers to an acid? A. Proton acceptor B. R

Question

21. Which of the following statements refers to an acid? A. Proton acceptor B. Releases H ions. C. Reccives H ions D. Solution has a p above 7. Which of these is a cORRECT statement about pH? A. A solution with a pH of 1 has half as much H' as a solution with a pH of 2. B. A solution of pH8 is considered slightly basic. C. Larger pH numbers indicate more acidic solutions. D. The normal pH of the blood ranges from 6-8. 22. The normal pH of the blood is: A. neutral. B. slightly acidic. C. slightly alkaline. D. very acidic. 23. Which of the following molecules act as buffers for acid in the blood? A. Hemoglobin B. Albunin C. Bicarbonate ion D. All of the above 24. 25. A volatile acid is eliminated from the body as: A. Lactic acid B. Ketoacids C. Carbon dioxide D. Sulfates 26. Which of these would occur to try to correct a too acidic condition? A. Increased ventilation rate B. Decreased HCO, reabsorption C. Decreased H" secretion D. Both a and b 27. Compensation for metabolic acidosis and alkalosis is accomplished by which of the following organs? A. Liver B. Skin C. Heart D. Lungs 28. Which of the following is NOT a correct normal value for arterial blood gases? A. HCO, averages 32 mEq/L. pH averages 7.4 C. pH ranges from 7.35-7.45 D. Po, averages 40 mm Hg

Explanation / Answer

21 (b) Releases H+ ions

22 (b) A solution of pH 8 is considered slightly basic.

23 (c) blood is slightly alkaline with a pH range of 7.35-7.45

24 (c) Bicarbonate ions

25 (c) CO2

26 (d) both a & b

27 (d) compensation for metabolic acidosis and alkalosis takes place through lungs.

28 (a) HCO3 averages 32mEq/L

( In normal arterial blood gas test, the partial pressure of HCO3 is found to be 22-26) So option (A) is incorrect.

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