A 31-year-old man suffering from food poisoning is having severe vomiting for the last 2 days.
His blood gas and serum electrolyte analyses revealed the following: pH of 7.60, PaCO2 of 49 mm Hg, an HCO3- of 47 mEq/L, a base excess (BE) of +20 mEq/L, a serum K+ of 2.5 mEq/L, and a serum of Cl of 92 mEq/L. How would the respiratory therapist assess his acid-base condi-tion?
1. Severe hyperventilation
2. Metabolic alkalosis
3. Adequate compensatory response
4. Minimal hypoventilation
a. 1, 2, and 3 only
b. 2 and 4 only
c. 3 only
d. 2, 3, and 4 only
Q. 2 Approximately how much CO2 is removed daily by the lungs?
a. 24,000 mmol/L of CO2
b. 14,000 mmol/L of CO2
c. 34,000 mmol/L of CO2
d. 4,000 mmol/L of CO2
Q. 3 A metabolic acidosis caused by HCO3 loss: 1. can be a result of ammonium chloride ingestion. 2. will cause an increased anion gap. 3. may be referred to as hyperchloremic acidosis. 4. accompanied by Cl gain.
a. 1, 3, and 4 only
b. 1 and 3 only
c. 3 only
d. 2, 3, and 4 only
Q. 4 A 21-year-old woman in the emergency room is displaying rapid and deep, labored breathing. Her room ABG reveals a pH of 7.25, PaCO2 of 28, HCO3 of 14 mEq/L, and a base excess of 14 mEq/L.
How would the respiratory therapist assess her acid-base condition?
1. Severe hyperventilation
2. Partially compensated metabolic acidosis
3. Compensatory response to the metabolic acidosis
4. Severe hypoventilation
a. 1, 2, and 3 only
b. 1 and 3 only
c. 3 only
d. 2, 3, and 4 only
Q. 5 A patient has a blood gas result of: pH 7.29, PaCO2 of 60 mm Hg, and a HCO3 of 18 mEq/L. What is the blood gas indicating?
1. It is indicating a combined acidosis.
2. Patient has a primary respiratory and a primary metabolic disorder.
3. Compensation is not possible.
a. 3 only
b. 1 and 2 only
c. 2 and 3 only
d. 1, 2, and 3
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