A nurse is reviewing the ABG results for a client. The client's results are pH 7.47, PaCO2 30 mm Hg, HCO3 25 mEq/L, and SaO2 90%. The nurse should identify that the client is experiencing which of the following acid-base imbalances?
Metabolic acidosis.
Respiratory acidosis.
Metabolic alkalosis.
Respiratory alkalosis.
The Correct Answer is D
Choice A rationale: Metabolic acidosis would present with a pH below 7.35 and a low HCO3 level. This client's pH is elevated at 7.47, which indicates an alkalotic state rather than an acidic one.
Choice B rationale: Respiratory acidosis is characterized by a pH below 7.35 and a PaCO2 above 45 mm Hg. This client's results show the opposite: a high pH and a low PaCO2 level.
Choice C rationale: Metabolic alkalosis requires an elevated HCO3 (typically above 26 mEq/L) to be the primary cause of the high pH. Here, the HCO3 is 25 mEq/L, which is within the normal range.
Choice D rationale: Respiratory alkalosis is defined by a pH above 7.45 and a PaCO2 below 35 mm Hg. The client's pH of 7.47 and PaCO2 of 30 mm Hg perfectly fit this clinical diagnosis.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is choiced. “I will wear gloves when changing the client’s hospital gown.”
Choice A rationale:
Cleaning reusable equipment with isopropyl alcohol is not effective against Clostridium difficile spores. Equipment should be cleaned with a sporicidal disinfectant to ensure the removal of C.difficile spores.
Choice B rationale:
Alcohol-based hand sanitizers are not effective against C. difficile spores.Hand hygiene should be performed with soap and water after contact with the client or their environment.
Choice C rationale:
Wearing a mask within 3 feet of the client is not necessary for C. difficile infection, as it is not transmitted via respiratory droplets.The primary mode of transmission is through contact with contaminated surfaces or feces.
Choice D rationale:
Wearing gloves when changing the client’s hospital gown is essential to prevent the transmission of C. difficile spores.Gloves should be worn for all contact with the client or their environment
Correct Answer is A
Explanation
Choice A rationale: Selecting a site at least 5 cm (2 in) away from the umbilicus is essential because the tissue around the navel is often tougher and has altered vascularity, which can lead to inconsistent medication absorption.
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Choice B rationale: Air bubbles in prefilled syringes, such as those used for enoxaparin, should not be expelled. The air bubble is designed to be injected last to seal the medication within the subcutaneous tissue and prevent leakage.
Choice C rationale: Aspiration is no longer recommended for subcutaneous injections. There are no large blood vessels in the subcutaneous layer, and aspiration increases the risk of tissue trauma, hematoma formation, and client discomfort.
Choice D rationale: Subcutaneous injections should be administered at a 45° to 90° angle, depending on the amount of subcutaneous fat available. A 15° angle is used specifically for intradermal injections, such as TB skin tests.
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