A nurse reviews the arterial blood gas (ABG) values of a client admitted with pneumonia: pH, 7.32; PaCO2, 48 mm Hg; PaO2, 70 mm Hg; and HCO3, 24 mEq/L. What do these values indicate?
Metabolic Acidosis
Respiratory Acidosis
Metabolic Alkalosis
Respiratory Alkalosis
The Correct Answer is B
A. Metabolic Acidosis
Metabolic acidosis is characterized by a low pH and low bicarbonate (HCO3) level. In this case, the pH is low (indicating acidosis), but the bicarbonate level is within the normal range, which is inconsistent with metabolic acidosis.
B. Respiratory Acidosis
This is correct. Respiratory acidosis is characterized by an elevated partial pressure of carbon dioxide (PaCO2), leading to a decrease in pH. The ABG values in this case indicate elevated PaCO2 and a low pH, consistent with respiratory acidosis.
C. Metabolic Alkalosis
Metabolic alkalosis is characterized by a high pH and high bicarbonate (HCO3) level. In this case, the pH is low (indicating acidosis), which is inconsistent with metabolic alkalosis.
D. Respiratory Alkalosis
Respiratory alkalosis is characterized by a low partial pressure of carbon dioxide (PaCO2) and a high pH. In this case, the PaCO2 is elevated, which is inconsistent with respiratory alkalosis.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Monitoring the patient's breathing and reviewing the patient's arterial blood gases:
Rationale: While respiratory status is crucial in any patient assessment, arterial blood gases primarily evaluate respiratory function. Neutropenia directly affects the immune system, not respiratory function.
Appropriateness: Not directly related to assessing neutropenia.
B. Monitoring the patient's temperature and reviewing the patient's complete blood count with differential:
Rationale: Neutropenia can cause fever due to the increased risk of infection. Monitoring temperature and reviewing the complete blood count (CBC) with differential, specifically the neutrophil count, is essential in evaluating neutropenia and identifying potential infections.
Appropriateness: Correct. Monitoring temperature and reviewing CBC with differential are crucial in assessing neutropenia.
C. Monitoring the patient's blood pressure and reviewing the patient's hematocrit:
Rationale: Blood pressure assessment and hematocrit evaluation are essential aspects of general patient care but are not specific to neutropenia.
Appropriateness: Not directly related to assessing neutropenia.
D. Monitoring the patient's heart rate and reviewing the patient's hemoglobin:
Rationale: Heart rate monitoring and hemoglobin assessment are crucial in various clinical situations but are not specific indicators of neutropenia.
Appropriateness: Not directly related to assessing neutropenia.
Correct Answer is C
Explanation
A. Development of a buffalo hump and moon face:
This is associated with Cushing's syndrome, a disorder characterized by prolonged exposure to high levels of cortisol.
B. Central obesity and purple striations:
Also indicative of Cushing's syndrome, where excess cortisol can lead to the accumulation of fat in the abdominal area (central obesity) and the development of purple stretch marks (striae).
C. Sudden weight loss without dieting:
This is more characteristic of hyperthyroidism, where the thyroid gland is overactive, leading to increased metabolism and unintended weight loss.
D. Positive Trousseau's sign when checking the client's blood pressure:
Trousseau's sign is associated with hypocalcemia and is seen in conditions affecting the parathyroid gland rather than the thyroid. It involves carpal spasm induced by inflating a blood pressure cuff above the systolic pressure for a few minutes.

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