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 A
Explanation
Choice A rationale:
Respects patient autonomy: This response directly addresses the patient's preference and demonstrates respect for their right to make decisions about their own care. It empowers the patient by offering a solution that aligns with their stated wishes.
Promotes patient comfort: By accommodating the patient's preference, the nurse can help to create a more comfortable and trusting environment, which can lead to better patient outcomes.
Protects patient privacy: Personal hygiene care often involves exposure of sensitive body parts and can be a source of embarrassment or anxiety for some patients. Ensuring that the patient is comfortable with the gender of the caregiver helps to protect their privacy and dignity.
Demonstrates cultural sensitivity: While not explicitly stated in the question, it's possible that the patient's preference is rooted in cultural or religious beliefs. Being sensitive to these factors is essential for providing culturally competent care.
Provides a practical solution: This response offers a concrete solution that can be easily implemented, ensuring that the patient's needs are met in a timely and efficient manner.
Choice B rationale:
May be perceived as intrusive: Asking the patient to explain their reasoning could make them feel uncomfortable or defensive. It's important to respect the patient's right to privacy and not pressure them to disclose personal information.
Could delay care: While understanding the patient's reasons may be helpful in some cases, it's not essential for providing appropriate care. Delaying care to gather this information could potentially compromise the patient's well-being.
Choice C rationale:
Dismisses patient's concerns: This response fails to acknowledge the patient's preference and could make them feel unheard or disrespected. It's important to validate the patient's feelings and concerns, even if you don't fully understand them.
May not address underlying issues: The patient's preference may be based on factors that are not related to the AP's competence or experience. Simply stating the AP's qualifications is unlikely to resolve the patient's concerns.
Choice D rationale:
Defers responsibility: While informing the charge nurse may be necessary for logistical reasons, it's important for the nurse to take ownership of the situation and address the patient's concerns directly. Deferring to another staff member could make the patient feel like their concerns are not being taken seriously.
May delay care: Involving additional staff members could potentially delay the patient's care. It's more efficient to address the patient's preference directly, if possible.
Correct Answer is B
Explanation
Choice B rationale:
Stridor is a high-pitched, wheezing sound that is heard during inspiration. It is caused by a narrowing or obstruction of the upper airway. This can be a serious complication after extubation, as it can indicate that the patient is not able to breathe adequately. Stridor can be caused by a number of factors, including:
Laryngeal edema: This is swelling of the larynx, which can be caused by irritation from the endotracheal tube.
Laryngospasm: This is a sudden constriction of the muscles of the larynx, which can be caused by irritation or by a foreign body in the airway.
Vocal cord paralysis: This is a loss of movement of the vocal cords, which can be caused by damage to the nerves that control them.
Blood or secretions in the airway: These can obstruct the airway and cause stridor.
It is important for the nurse to report stridor to the provider immediately so that the cause can be identified and treated. Treatment may include:
Oxygen therapy: This can help to improve the patient's breathing.
Medications: These may be used to reduce inflammation or to relax the muscles of the airway. Reintubation: This may be necessary if the patient is not able to breathe adequately on their own.
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