Mrs. Jamerson, who is in the post anesthesia care unit (PACU) following surgery, is difficult to arouse and demonstrates shallow breathing. The patient does not respond to any stimuli. The nurse assesses the patient and obtains arterial blood gas (ABG) measurements STAT. The ABG shows a pH of 7.10, PaCO2 of 70 mm Hg, and HCO3 of 24 mEq/L. What does this mean?
Respiratory Alkalosis Partially Compensated
Respiratory Acidosis Uncompensated
Metabolic Alkalosis Partially Compensated
Metabolic Acidosis Uncompensated
The Correct Answer is B
Choice A reason: Respiratory Alkalosis Partially Compensated is characterized by an elevated pH over 7.45 and a PaCO2 under 35 mmHg, with a compensatory acidic HCO3 under 22 mEq/L. This does not match the patient's ABG results.
Choice B reason: Respiratory Acidosis Uncompensated is indicated by an acidic pH under 7.35 and an elevated PaCO2 over 45 mmHg, with HCO3 in the normal range of 2226 mEq/L. The patient's ABG results show a low pH and high PaCO2, which aligns with this condition.
Choice C reason: Metabolic Alkalosis Partially Compensated would show a basic pH over 7.45 and a basic HCO3 over 26 mEq/L, with a compensatory acidic PaCO2 over 45 mmHg[^10^]. The patient's ABG values do not support this diagnosis.
Choice D reason: Metabolic Acidosis Uncompensated would present with an acidic pH under 7.35 and an acidic HCO3 under 22 mEq/L, with PaCO2 in the normal range of 3545 mmHg⁸. The patient's normal HCO3 level does not indicate metabolic acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Pain at rest is a common symptom of advanced PAD, indicating that blood flow is so reduced that the muscles are not receiving enough oxygen even when not active.
Choice B reason: Thin, brittle toenails can be a sign of PAD due to poor blood flow affecting the growth and health of the nails.
Choice C reason: Hanging legs, or dependent positioning, may temporarily relieve pain for PAD patients due to gravity assisted blood flow; however, it is not a finding but rather a coping mechanism.
Choice D reason: Cool extremities are expected in PAD because reduced blood flow decreases the warmth supplied to the tissues.

Correct Answer is C
Explanation
Choice A reason: This choice is incorrect as painless, raised purple nodules on the hard palate are not typically indicative of squamous cell carcinoma.
Choice B reason: This choice is incorrect because a small macule with a yellow-brown scale does not describe squamous cell carcinoma, which often presents as a firm nodule with a scaly crust.
Choice C reason: This choice is correct. Squamous cell carcinoma can present as a firm nodule with a hard, scaly crust on the skin.
Choice D reason: Yellow white patches of growth on the tongue are more indicative of conditions such as oral leukoplakia, not squamous cell carcinoma.
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