Acid Base Balance Multiple Choice Questions

Acid Base Balance Multiple Choice Questions

Question 1. The normal hydrogen ion concentration of plasma is ________ nmol/L.

1. 30
2. 40
3. 50
4. 60

Answer:  2. 40

Question 2. The most important buffer system in the plasma is:

1. Phosphate buffer system
2. Ammonia buffer system
3. Proteins
4. Bicarbonate-carbonic acid buffer system

Answer:  4. Bicarbonate-carbonic acid buffer system

Question 3. pH is the negative logarithm to the base 10 of hydrogen ion concentration expressed in ________.

1. mol/L
2. mmol/L
3. nmol/L
4. μmol/L

Answer:  1. mol/L

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Question 4. The solubility coefficient of carbon dioxide in plasma is ________ ml/mmHg/dl.

1. 0.3
2. 0.03
3. 0.003
4. 3

Answer:  2. 0.03

Question 5. The following is true in primary metabolic acidosis with secondary respiratory alkalosis:

1. pH and PCO₂ are decreased
2. pH decreases but PaCO₂ increases
3. pH and PaCO₂ are increased
4. pH increases but PaCO₂decreases

Answer: 1. pH and PCO₂ are decreased

Question 6. The following is one of the causes of metabolic acidosis with increased anion gap:

1. Diarrhoea
2. Intestinal fistula
3. Pancreatic fistula
4. Diabetic ketoacidosis

Answer:  4. Diabetic ketoacidosis

Question 7. The following equation represents the nonlogarithmic form of acid–base equation:

1. Harrison
2. Henderson
3. Hutchinson
4. Hanson

Answer: 2. Henderson

Question 8. The following may be a cause of respiratory alkalosis:

1. Morphine overdose
2. Chronic obstructive pulmonary disease
3. Salicylate poisoning
4. Curare poisoning

Answer: 3. Salicylate poisoning

Question 9. Following are true for albumin e x c e p t :

1. First line of treatment in hypovolaemic shock
2. Does not carry risk of transfusion hepatitis
3. Used in nephrotic syndrome
4. It should not be used to treat malnutrition

Answer: 1. First line of treatment in hypovolaemic shock

Question 10. Metabolic acidosis with normal anion gap is also called:

1. Hyperchloraemic acidosis
2. Hyperkalaemic acidosis
3. Hypernatraemic acidosis
4. Hypercalcaemic acidosis

Answer: 1. Hyperchloraemic acidosis