A client is admitted to the medical-surgical unit with a chief complaint of prolonged vomiting over the past 24 hours. Based on the arterial blood gas (ABG) results of pH 7.5. PaCO2 36, HCO3 40, the nurse determines that the client is experiencing:
respiratory alkalosis.
respiratory acidosis.
metabolic acidosis.
metabolic alkalosis.
The Correct Answer is D
D. Metabolic alkalosis is characterized by an increased pH (alkalosis) and an increased HCO3. In this case, the pH is elevated (7.5), indicating alkalosis, which supports metabolic alkalosis. The HCO3 is elevated at 40 mEq/L, which further supports metabolic alkalosis. The PaCO2 is normal or slightly low (36 mmHg), which can occur as a compensatory response to metabolic alkalosis.

A. Respiratory alkalosis is characterized by an increase in pH (alkalosis) and a decrease in PaCO2 (hypocapnia). In this scenario, the pH is elevated (7.5), which indicates alkalosis. The PaCO2 is 36 mmHg, which is within the normal range (35-45 mmHg) but slightly on the lower side (slight hypocapnia). The HCO3 is elevated at 40 mEq/L, which suggests a compensatory response by the kidneys to retain bicarbonate to counteract the alkalosis.
B. Respiratory acidosis is characterized by a decrease in pH (acidosis) and an increase in PaCO2 (hypercapnia). In this case, the pH is elevated (7.5), indicating alkalosis, which contradicts respiratory acidosis. The PaCO2 is 36 mmHg, which is normal or slightly low, not high as expected in respiratory acidosis. The elevated HCO3 (40 mEq/L) suggests a compensatory metabolic response to the alkalosis, not to acidosis.
C. Metabolic acidosis is characterized by a decreased pH (acidosis) and a decreased HCO3. In this scenario, the pH is elevated (7.5), indicating alkalosis, which contradicts metabolic acidosis. The HCO3 is elevated at 40 mEq/L, indicating metabolic alkalosis rather than metabolic acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
C. This entry is factual and avoids assumptions about how the client ended up on the floor, focusing instead on the sequence of events as discovered by the recorder. It is important to avoid speculation and to document only what is directly observed or verifiable.
A. This option provides a clear description of the situation: the client was found on the floor, and it attributes the fall to getting tangled in bed linens. However, it includes an assumption of how the client fell.
B. This option indicates that the client fell out of bed and did push the call button for assistance. While it acknowledges the fall and the use of the call button, it doesn't specify who found the client on the floor or the circumstances surrounding the discovery.
D. This option suggests that the client called for assistance after falling out of bed due to being tangled in bed linens. It mentions the sequence of events (tangled in bed linens first, then called for assistance), but it doesn't specify who found the client on the floor or the action taken thereafter.
Correct Answer is C
Explanation
C. Yogurt contains probiotics, which are beneficial bacteria that can help restore and maintain a healthy balance of gut flora. Consuming yogurt with live cultures regularly is a recognized strategy to replenish beneficial bacteria in the gut, especially after a period of diarrhea or antibiotic use that may disrupt the normal gut microbiota.
A. This statement is related to the management of infection and antibiotic therapy, not specifically to reestablishing bowel flora. While stopping antibiotics appropriately is important for overall health and possibly reducing antibiotic-associated diarrhea, it does not directly address the replenishment of bowel flora.
B. Rice is often recommended during episodes of diarrhea to provide bland, easily digestible food. However, it does not actively contribute to reestablishing healthy bowel flora. It helps in managing symptoms but does not address the restoration of beneficial gut bacteria.
D. Hydration is essential during episodes of diarrhea to prevent dehydration. While adequate hydration supports overall health and can aid in recovery, it does not specifically address the restoration of bowel flora.
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