A nurse is reviewing a client's laboratory results. The client's ABGS are as follows: pH 7.6, HCO3 24 mEq/L, PaCO2 30 mm Hg, PaO2 90 mm Hg. Which of the following acid-base imbalances should the nurse identify the client is experiencing?
Metabolic alkalosis
Respiratory acidosis
Respiratory alkalosis
Metabolic acidosis
The Correct Answer is C
A) Metabolic alkalosis: Metabolic alkalosis is characterized by a high pH and elevated bicarbonate (HCO3). In this scenario, the pH is elevated at 7.6, which supports alkalosis, but the HCO3 level is normal at 24 mEq/L. The PaCO2 is slightly low, which is not typical for metabolic alkalosis, as it would usually show an elevated HCO3 with a compensatory respiratory alkalosis.
B) Respiratory acidosis: Respiratory acidosis would present with a low pH and an elevated PaCO2. In this case, the pH is high at 7.6, indicating alkalosis, and the PaCO2 is also low at 30 mm Hg, which is inconsistent with respiratory acidosis.
C) Respiratory alkalosis: Respiratory alkalosis is indicated by a high pH with a low PaCO2. Here, the pH is elevated at 7.6, and the PaCO2 is decreased at 30 mm Hg, which fits the profile of respiratory alkalosis. The normal HCO3 level suggests that the bicarbonate is not compensating, supporting a primary respiratory alkalosis.
D) Metabolic acidosis: Metabolic acidosis is characterized by a low pH and a low HCO3. In this scenario, the pH is elevated at 7.6, and the HCO3 level is normal at 24 mEq/L, which does not align with metabolic acidosis. The PaCO2 is also low, which is not typical for metabolic acidosis, as it would usually have a normal or high PaCO2.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is "{\"xRanges\":[232.4270782470703,272.4270782470703],\"yRanges\":[382.1666450500488,422.1666450500488]}"
Explanation
To determine if the child is experiencing subcostal retractions, check the area beneath the ribcage.
D - Subcostal Area:
Subcostal retractions occur below the ribs and are a sign of respiratory distress, indicating increased effort to breathe.
Observing this area can reveal inward movement during inspiration, suggesting difficulty in breathing, often seen in asthma exacerbations.
Rationale
A - Incorrect:
This area is near the clavicle and not related to subcostal retractions.
B - Incorrect:
This is the intercostal area, which can also show retractions but is not subcostal.
C - Incorrect:
This area is too central and does not correspond with subcostal retractions.
Focusing on D allows the nurse to assess the presence of subcostal retractions effectively.
Correct Answer is D
Explanation
A) Protective environment
This type of isolation is used for clients with weakened immune systems to protect them from infections. It is not necessary for pertussis, which requires droplet precautions to prevent spread.
B) Airborne precautions
These are used for diseases that are spread through tiny droplets that remain in the air, such as tuberculosis. Pertussis spreads through larger respiratory droplets, not lingering in the air, so airborne precautions are not needed.
C) Contact precautions
These are used for infections spread by direct touch or contact with surfaces. Pertussis primarily spreads through respiratory droplets rather than direct contact, making contact precautions unnecessary.
D) Droplet precautions
Droplet precautions are appropriate for pertussis, as it spreads via respiratory droplets when an infected person coughs or sneezes. This involves wearing masks and maintaining distance to prevent transmission.
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