2 ABG Interpretation Online Quiz Questions

True or false: An adult ABG pH of $7.40$ guarantees that no acid–base disorder is present.

Which approach best assesses oxygenation in a patient whose acid–base status is being evaluated?

True or false: A patient with pH $7.40$ may still have a mixed acid–base disorder.

A patient with diabetes has nausea, dehydration, and deep, rapid breathing. ABG: pH $7.25$, PaCO₂ $25$ mm Hg, HCO₃⁻ $11$ mEq/L. Which interpretation best fits these findings?

In metabolic alkalosis, which direction should PaCO₂ move as respiratory compensation moves pH toward normal?

For metabolic acidosis with HCO₃⁻ $14$ mEq/L, use Winter’s formula, expected PaCO₂ $=(1.5\times\text{HCO₃⁻})+8$, to calculate the central expected PaCO₂ value before applying the formula’s $\pm2$ mm Hg range. Enter the value in mm Hg.

A patient with chronic obstructive pulmonary disease is more drowsy than usual. ABG: pH $7.34$, PaCO₂ $60$ mm Hg, HCO₃⁻ $32$ mEq/L. Which interpretation and response best fit the material?

A patient with suspected infection has pH $7.40$, PaCO₂ $20$ mm Hg, and HCO₃⁻ $12$ mEq/L. Select all conclusions supported by these ABG values.

Select all statements that reflect a sound approach when applying ABG compensation rules in clinical practice.

A patient reports repeated vomiting and weakness. ABG: pH $7.50$, PaCO₂ $48$ mm Hg, HCO₃⁻ $36$ mEq/L. Explain the primary acid–base disorder, how PaCO₂ relates to compensation, and two clinical factors that should be assessed in light of the vomiting.

A patient is anxious and breathing rapidly. ABG: pH $7.51$, PaCO₂ $28$ mm Hg, HCO₃⁻ $22$ mEq/L. Which interpretation and clinical response are most appropriate?

When pH is outside its reference range, which rule best helps distinguish whether PaCO₂ or HCO₃⁻ explains its direction?

True or false: An adult pH within the reference range of 7.35–7.45 rules out an acid–base disorder.

Which measurements should be assessed separately to evaluate oxygenation in a patient whose ABG also includes pH, PaCO₂, and HCO₃⁻?

A patient is breathing rapidly during distress. The ABG shows pH 7.51, PaCO₂ 28 mm Hg, and HCO₃⁻ 22 mEq/L. Which primary acid–base disorder best fits this pattern?

A patient with repeated vomiting has pH 7.50, PaCO₂ 48 mm Hg, and HCO₃⁻ 36 mEq/L. Which interpretation best accounts for both the primary process and the direction of compensation?

A patient with diabetes has nausea, dehydration, and deep, rapid breathing. The ABG shows pH 7.25, PaCO₂ 25 mm Hg, and HCO₃⁻ 11 mEq/L. Identify the primary acid–base disorder and whether respiratory compensation is appropriate.

A patient with diabetes presents with nausea, dehydration, and deep, rapid breathing. What condition is a concern in this clinical context?