Fun Quiz: Acid Base Balance

#1. A mountaineer attempts an assault on a high mountain in the Andes and reaches an altitude of 5000 meters (16,400 ft) above sea level. What will happen to his arterial PCO2 and pH?

Both will be higher than normal due to physical exertion

Both will be lower than normal

The pH will fall and PCO2 will rise

The pH will rise and PCO2 will fall

#2. Measurement of arterial blood gas reveals pH 7.6, PO2 120 mm Hg, PCO2 31 mm Hg, and HCO3 25 mmol/L. What does this mean?

Respiratory Acidosis, Partially Compensated

Metabolic Alkalosis, Uncompensated

Respiratory Alkalosis, Uncompensated

Metabolic Alkalosis, Partially Compensated

#3. In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: Low plasma PCO2

Respiratory Alkalosis

Respiratory Acidosis

Metabolic Acidosis

Metabolic Alkalosis

#4. In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: Increased plasma bicarbonate (HCO3-)

Metabolic Acidosis

Respiratory Acidosis

Metabolic Alkalosis

Respiratory Alkalosis

#5. In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: High plasma PCO2

Metabolic Alkalosis

Respiratory Acidosis

Metabolic Acidosis

Respiratory Alkalosis

#6. Match the acid-base status of the following blood samples to the disorders in the given choices. (PaCO2 values are in mm Hg and bicarbonate values in mmol/l). pH 7.39, PCO2 59, HCO3- 35

Respiratory Acidosis, Uncompensated

Metabolic Alkalosis, Uncompensated

Metabolic Alkalosis, Partially Compensated

Respiratory Acidosis, Fully Compensated

#7. Measurement of arterial blood gas shows pH 7.0, PaO2 90 mm Hg, PaCO2 23 mm Hg, and HCO3 12 mmol/L; other results are Na+ 126 mmol/L, K+ 5 mmol/L, and Cl- 95 mmol/L. What is your assessment?

Respiratory Acidosis, Partially Compensated

Metabolic Alkalosis, Uncompensated

Metabolic Acidosis, Partially, Compensated

Respiratory Acidosis, Uncompensated

#8. An old beggar was admitted to the emergency department due to shortness of breath, fever, and a productive cough. Upon examination, crackles and wheezes are noted in the lower lobes; he appears to be tachycardic and has a bounding pulse. Measurement of arterial blood gas shows pH 7.2, PaCO2 66 mm Hg, HCO3 27 mmol/L, and PaO2 65 mm Hg. As an experience lab tech, you know that the normal value for pH is:

7.30

7.40

7.50

7.20

#9. Match the acid-base status of the following blood samples to the disorders in the given choices. (PaCO2 values are in mm Hg and bicarbonate values in mmol/l). pH 7.5, PCO2 19, HCO3- 22

Respiratory Alkalosis, Partially Compensated

Metabolic Alkalosis, Partially Compensated

Respiratory Acidosis, Uncompensated

Respiratory Alkalosis, Uncompensated

#10. The results from the ABGs show pH 7.57, PCO2 37 mmHg and HCO3 30 mEq/L. What is your assessment?

Respiratory Alkalosis, Uncompensated

Metabolic Acidosis, Uncompensated

Metabolic Alkalosis, Partially Compensated

Metabolic Alkalosis, Uncompensated

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#1. A mountaineer attempts an assault on a high mountain in the Andes and reaches an altitude of 5000 meters (16,400 ft) above sea level. What will happen to his arterial PCO2 and pH?

#2. Measurement of arterial blood gas reveals pH 7.6, PO2 120 mm Hg, PCO2 31 mm Hg, and HCO3 25 mmol/L. What does this mean?

#3. In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: Low plasma PCO2

#4. In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: Increased plasma bicarbonate (HCO3-)

#5. In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: High plasma PCO2

#6. Match the acid-base status of the following blood samples to the disorders in the given choices. (PaCO2 values are in mm Hg and bicarbonate values in mmol/l). pH 7.39, PCO2 59, HCO3- 35

#7. Measurement of arterial blood gas shows pH 7.0, PaO2 90 mm Hg, PaCO2 23 mm Hg, and HCO3 12 mmol/L; other results are Na+ 126 mmol/L, K+ 5 mmol/L, and Cl- 95 mmol/L. What is your assessment?

#9. Match the acid-base status of the following blood samples to the disorders in the given choices. (PaCO2 values are in mm Hg and bicarbonate values in mmol/l). pH 7.5, PCO2 19, HCO3- 22

#10. The results from the ABGs show pH 7.57, PCO2 37 mmHg and HCO3 30 mEq/L. What is your assessment?

Results

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