ATI RN Adult Medical Surgical Online Practice 2023 A

Correct Answer: B

Rationale: The absence of fluctuations in the water seal chamber indicates that the client's lung has re-expanded. This finding suggests that the negative pressure in the pleural space is restored, preventing air from entering the system. Oxygen saturation, absence of pleuritic chest pain, and occasional bubbling in the water-seal chamber are important assessments but do not specifically indicate lung re-expansion.

Correct Answer: A

Rationale: In this situation, the priority action is to provide high-flow oxygen to the client. Sudden onset dyspnea and severe chest pain can be indicative of a pulmonary embolism, which is a life-threatening emergency. Oxygen therapy helps improve oxygenation and stabilizes the client's condition. Checking for Chvostek's sign, administering IV vasopressors, or monitoring for a headache are not the immediate priorities in this critical situation.

Correct Answer: D

Rationale: During an acute asthma exacerbation, the priority intervention is to administer a nebulized beta-adrenergic medication, such as albuterol, to help open the airways and improve breathing. This action helps address the underlying cause of the exacerbation. Oxygen therapy may be needed but is not the priority over administering the bronchodilator. Providing rest and positioning the client in high-Fowler's are important but come after administering the medication to address the immediate breathing difficulties.

Correct Answer: C

Rationale: In respiratory acidosis, there is an excess of carbon dioxide (PaCO2 > 45 mm Hg) leading to a decrease in pH (<7.35). The given values of a pH of 7.3 and PaCO2 of 50 mm Hg indicate respiratory acidosis. Metabolic acidosis involves a primary decrease in bicarbonate levels with a compensatory decrease in PaCO2 to maintain balance. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory alkalosis is marked by low PaCO2 and increased pH levels.

Correct Answer: B

Rationale: