A nurse is collecting data from a client who has shallow respirations and a respiratory rate of 9/min.
Which of the following acid-base imbalances should the nurse expect?

Choice D rationale:

The nurse should seek clarification for the prescribed medication Propranolol when caring for a client with an exacerbation of asthma. Propranolol is a non-selective beta-blocker, and its use can exacerbate bronchoconstriction and potentially worsen asthma symptoms. In patients with asthma, non-selective beta-blockers are generally contraindicated. The nurse should consult with the provider to ensure that Propranolol is the appropriate choice, as there may be safer alternatives to manage the client's condition without worsening their asthma.

Choice A rationale:

Prednisone is a corticosteroid commonly used to reduce inflammation and manage asthma exacerbations. It is an appropriate medication for asthma management and does not require clarification.

Choice B rationale:

Montelukast is a leukotriene receptor antagonist that is also used in the management of asthma. It helps to reduce airway inflammation and bronchoconstriction. Montelukast is an appropriate choice for asthma and does not need further clarification.

Choice C rationale:

Aminophylline is a bronchodilator that can be used in the treatment of asthma. While it may have potential side effects and interactions, it is not the first medication that needs clarification in this scenario. Propranolol, due to its potential to worsen asthma symptoms, takes precedence.

Choice A rationale:

The client's arterial blood gas (ABG) results indicate a low pH (acidemia) and high PaCO2, which is characteristic of respiratory acidosis. Respiratory acidosis occurs when there is inadequate removal of carbon dioxide (CO2) from the body, leading to an accumulation of CO2 and a decrease in pH. In this case, the high PaCO2 (50 mm Hg) indicates that the client is retaining carbon dioxide, likely due to impaired ventilation. The normal pH range is 7.35 to 7.45, and the normal PaCO2 range is 35 to 45 mm Hg. These ABG values reflect an acid-base imbalance in the respiratory system, specifically, respiratory acidosis.

Choice B rationale:

Metabolic alkalosis is characterized by an elevated pH and an increase in bicarbonate (HCO3) levels. This is not the condition described in the client's ABG results, as the pH is low (acidemic) and HCO3 levels are within the normal range (24 mEq/L).

Choice C rationale:

Metabolic acidosis is characterized by a low pH and a decreased HCO3 level. The client's ABG results do not align with metabolic acidosis since the pH is low (acidemic) and the HCO3 level is within the normal range (24 mEq/L).

Choice D rationale:

Respiratory alkalosis is characterized by a high pH and low PaCO2. The client's ABG results do not match this condition as the pH is low (acidemic) and the PaCO2 is high (50 mm Hg), indicating respiratory acidosis. Therefore, choice A, respiratory acidosis, is the correct interpretation of the ABG results.