A nurse is reviewing laboratory results for a client who has metabolic alkalosis. Which of the following blood gas values should the nurse expect?
pH 7.36 (7.35 to 7.45), PaCO2 38 mm Hg (35 to 45 mmHg) HCO3 25 mEq/L (22 to 26 mEq/L)
pH 7.48 (7.35 to 7.45), PaCO, 32 mm Hg (35 to 45 mm Hg). HCO3 24 mEq/L (22 to 26 mE q/L)
pH 7.46 (7.35 to 7.45). PaCO2 36 mm Hg (35 to 45 mm Hg). HCO3 29 mEq/L (22 to 26 mEq/L)
pH 7.26 (7.35 to 7.45). PaCO, 35 mm Hg (35 to 45 mm Hg). HCO3 18 mEq/L (22 to 26 mEq/L)
The Correct Answer is C
A) pH 7.36 (7.35 to 7.45), PaCO2 38 mm Hg (35 to 45 mmHg), HCO3 25 mEq/L (22 to 26 mEq/L): This is a normal set of arterial blood gas (ABG) values, with a pH within normal range, a normal PaCO2, and a normal HCO3. It does not suggest metabolic alkalosis.
B) pH 7.48 (7.35 to 7.45), PaCO2 32 mm Hg (35 to 45 mm Hg), HCO3 24 mEq/L (22 to 26 mEq/L): Although the pH is elevated, indicating alkalosis, the PaCO2 is slightly low, and the bicarbonate (HCO3) is within the normal range. This set of values does not indicate metabolic alkalosis, but could indicate respiratory alkalosis or compensated alkalosis.
C) pH 7.46 (7.35 to 7.45), PaCO2 36 mm Hg (35 to 45 mm Hg), HCO3 29 mEq/L (22 to 26 mEq/L): This is consistent with metabolic alkalosis. The elevated pH (alkalosis) combined with an increased bicarbonate level (HCO3 > 26 mEq/L) and a normal PaCO2 suggests metabolic alkalosis, as the kidneys retain bicarbonate to compensate for the condition.
D) pH 7.26 (7.35 to 7.45), PaCO2 35 mm Hg (35 to 45 mm Hg), HCO3 18 mEq/L (22 to 26 mEq/L): This set of values indicates acidosis, not alkalosis. The pH is low, indicating acidosis, and the bicarbonate (HCO3) is also low, which suggests metabolic acidosis. The PaCO2 is normal, which further supports a metabolic origin of the acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) *The client's partner visited earlier today for 2 hours: While this information is helpful for the personal context of the client, it is not essential to the clinical care of the client or a critical part of the handoff. The change-of-shift report should focus on relevant clinical information that affects ongoing care, such as treatment responses, medications, or changes in condition.
B) "The client reports pain is reduced when he is positioned on his side": This is important clinical information that should be included in the report. It provides insight into the client’s current comfort measures and pain management strategies. Sharing how the client’s pain can be alleviated will help the next nurse provide the most effective care and manage the client's comfort.
C) "The client received the prescribed antibiotic every 8 hours": While medication administration is an essential part of the report, this specific detail is unnecessary if the medication administration schedule is already part of the client's medical record or the nurse's medication administration documentation. The change-of-shift report should focus on whether the client has had any reactions, responses, or issues related to the medication, rather than simply repeating the schedule.
D) "The client's mother died 4 years ago from breast cancer": This personal history may be relevant to understanding the client's emotional well-being but is not essential in a clinical report unless it directly impacts current care. If the client's grief or family history affects their current health status (such as in the case of emotional distress, family health risks, or health behaviors), it may be relevant, but it's generally not a priority in a shift report unless it has immediate implications for care.
Correct Answer is A
Explanation
A) Hot cocoa: Hot cocoa contains the least amount of caffeine compared to the other beverages listed. While it does contain some caffeine, it is significantly lower than coffee, tea, or cola. A typical 8 oz serving of hot cocoa contains approximately 3-10 mg of caffeine, making it the best option for a client looking to reduce caffeine intake.
B) Brewed green tea: Brewed green tea contains more caffeine than hot cocoa. On average, an 8 oz cup of brewed green tea contains about 25-30 mg of caffeine, which is more than cocoa but less than coffee or cola. Although green tea has health benefits, it may not be the best option for those trying to limit caffeine intake.
C) Instant coffee: Instant coffee typically contains more caffeine than brewed green tea or hot cocoa. An 8 oz serving of instant coffee can contain around 30-90 mg of caffeine, depending on the brand and how it is prepared. While it provides a caffeine boost, it is not a good choice for someone seeking to reduce caffeine consumption.
D) Cola soft drink: Cola soft drinks contain a moderate amount of caffeine, usually about 30 mg per 8 oz serving. While this is less than coffee or tea, it still contains more caffeine than hot cocoa and could be a concern for someone trying to cut back on caffeine.
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