1. The pH of a person’s blood is 7.28. How should this patient be classified?

A. as exhibiting acidosis

B. as having a normal pH

C. as exhibiting alkalosis

2. Which parts of the human body primarily maintain the blood’s pH?

A. heart and lungs

B. liver and heart

C. liver and kidneys

D. kidneys and lungs

3. The two substances responsible for maintaining the proper pH in the blood are the bicarbonate ion and carbonic acid.

A. true

B. false

4. What is the conjugate acid of water in the following chemical reaction?

HF + H₂O → H₃O⁺ + OH^-

A. HF

B. H₂O

C. H3O⁺

D. OH^-

5. What is the best classification of a decreased concentration of carbonic acid as the primary problem of a patient?

A. metabolic acidosis

B. metabolic alkalosis

C. respiratory acidosis

D. respiratory alkalosis

6. What is the best classification of a decreased concentration of the bicarbonate ion as the primary problem of a patient?

A. metabolic acidosis

B. metabolic alkalosis

C. respiratory acidosis

D. respiratory alkalosis

7. If the ratio of [HCO₃^-1]/[H₂CO₃] > 22.4 for a patient, how is the condition best classified?

A. acidosis

B. normal

C. alkalosis

8. If the ratio of [HCO₃^-1]/[H₂CO₃] < 17.8 for a patient, how is the condition best classified?

A. acidosis

B. normal

C. alkalosis