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A nurse reviews the following ABG result:

  • pH 7.37
  • PaO2 84
  • PaCO2 54
  • Bicarbonate: 31
  • Saturation: 95%

What is the interpretation of this ABG?

A.

Partially compensated Metabolic Alkalosis

B.

Fully compensated Metabolic Acidosis

C.

Fully compensated Respiratory Acidosis

D.

Partially compensated Respiratory Alkalosis

Answer and Explanation

The Correct Answer is C

A. Partially compensated Metabolic Alkalosis: This is incorrect because the pH is within normal limits (7.35-7.45), and the elevated PaCO2 and bicarbonate suggest a respiratory issue rather than a metabolic one.

B. Fully compensated Metabolic Acidosis: This is incorrect because the primary disturbance is respiratory, not metabolic. A compensated metabolic acidosis would typically show a low PaCO2 as compensation.

C. Fully compensated Respiratory Acidosis: Correct. The pH is within the normal range, indicating full compensation. The elevated PaCO2 and bicarbonate reflect a chronic respiratory acidosis that has been compensated by the kidneys.

D. Partially compensated Respiratory Alkalosis: This is incorrect because in respiratory alkalosis, the PaCO2 would be low, not high.


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Related Questions

Correct Answer is ["15.94"]

Explanation

Convert the ordered dose to mcg/min:

  • 10 mcg/kg/min × 85 kg = 850 mcg/min

Convert the available dose to mcg/mL:

  • 800 mg = 800,000 mcg in 250 mL

Concentration = 800,000 mcg ÷ 250 mL

= 3200 mcg/mL

Calculate the infusion rate:

Infusion rate (mL/hour) = [Desireddose(mcg/min) ÷Concentration(mcg/mL)] ×60 min/hour

Infusion rate = (850 mcg/min ÷ 3200 mcg/mL) × 60 min/hour

= 15.94 mL/hour

The IV pump should be set to infuse at approximately 15.94 mL/hour to deliver the ordered dose of dopamine at 10 mcg/kg/min for a patient weighing 85 kg. This ensures the appropriate therapeutic effect.

Correct Answer is C

Explanation

A. "A complex measurement that should only be discussed with your health care provider": This response is dismissive and does not provide the patient with valuable information or education.

B. "A measurement that should always be 120/80 unless complications are present": While 120/80 mmHg is a common target, blood pressure varies based on individual health and other factors.

C. "A measurement that takes into consideration the amount of blood that your heart is pumping and the size of the vessel diameter the heart must pump against": This response accurately explains that blood pressure is the force of blood against the walls of the arteries and is influenced by cardiac output and vascular resistance.

D. "The amount of pressure exerted on your veins by the blood": Blood pressure refers to the pressure within the arteries, not veins.

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