A nurse is analyzing the arterial blood gas (ABG) results of a patient.
The patient’s ABGs are: pH:7.6, PaCO2:40 mm Hg, HCO3:32 mEq/L. Which of the following acid-base conditions should the nurse identify the patient is experiencing?
Respiratory acidosis.
Respiratory alkalosis.
Metabolic acidosis.
Metabolic alkalosis.
The Correct Answer is D
Choice A rationale:
Respiratory acidosis is characterized by a low pH (less than 7.35), a high PaCO2 (greater than 45 mm Hg), and a normal or high HCO3 (22-26 mEq/L). It occurs when there is a buildup of carbon dioxide in the blood due to impaired ventilation.
The patient's ABGs do not align with respiratory acidosis because the pH is elevated (7.6), and the PaCO2 is within the normal range (40 mm Hg).
Choice B rationale:
Respiratory alkalosis is characterized by a high pH (greater than 7.45), a low PaCO2 (less than 35 mm Hg), and a normal or low HCO3 (22-26 mEq/L). It occurs when there is excessive loss of carbon dioxide through hyperventilation.
The patient's ABGs do not align with respiratory alkalosis because the HCO3 is elevated (32 mEq/L), which is not typical for this condition.
Choice C rationale:
Metabolic acidosis is characterized by a low pH (less than 7.35), a normal or low PaCO2 (less than 40 mm Hg), and a low HCO3 (less than 22 mEq/L). It occurs when there is an excess of acid in the body or a loss of bicarbonate.
The patient's ABGs do not align with metabolic acidosis because the pH is elevated (7.6), and the HCO3 is elevated (32 mEq/L).
Choice D rationale:
Metabolic alkalosis is characterized by a high pH (greater than 7.45), a normal or high PaCO2 (40-45 mm Hg), and an elevated HCO3 (greater than 26 mEq/L). It occurs when there is an excess of bicarbonate in the body or a loss of acid.
The patient's ABGs align with metabolic alkalosis because of the high pH (7.6), normal PaCO2 (40 mm Hg), and elevated HCO3 (32 mEq/L).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is choiceD.
Choice A rationale:
Assisting the client back into bed is not the initial action.Moving the client without assessing their condition could potentially cause harm.
Choice B rationale:
Notifying the client’s provider is important, but it should be done after assessing the client’s condition to provide accurate information.
Choice C rationale:
Informing the client’s family member is not the immediate priority.The nurse should first ensure the client’s safety and assess their condition.
Choice D rationale:
Obtaining the client’s vital signs is the initial action.This helps assess the client’s current condition and determine if there are any immediate medical needs.
Correct Answer is B
Explanation
Choice B rationale:
Phlebitis is the inflammation of a vein, often caused by an IV catheter. It's characterized by redness, swelling, warmth, and pain along the vein.
Promptly discontinuing the IV infusion is crucial to prevent further irritation and potential complications such as: Thrombophlebitis (inflammation with clot formation)
Infection
Infiltration (leakage of fluids into surrounding tissues) Extravasation (leakage of vesicant or damaging medications)
Continuing the infusion could exacerbate the inflammation and increase the risk of these complications.
Choice A rationale:
Elevation of the extremity can help reduce swelling, but it does not address the underlying inflammation. It's often used as an adjunct measure after discontinuing the IV.
Choice C rationale:
Warm, moist compresses can provide some comfort and potentially promote blood flow, but they are not recommended as a first-line treatment for phlebitis. They may even worsen inflammation in some cases.
Choice D rationale:
Inserting an IV catheter in the opposite extremity is necessary if the patient still requires IV therapy, but it should not be done before addressing the phlebitis in the current site. This could lead to multiple sites of inflammation and increased risk of complications.
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