ATI RN
ATI Detailed Answer Key Medical Surgical
1. The healthcare provider is caring for a postoperative client who has a chest tube connected to suction and a water seal drainage system. Which of the following indicates to the healthcare provider that the chest tube is functioning properly?
- A. Fluctuation of the fluid level within the water seal chamber
- B. Absence of fluid in the drainage tubing
- C. Continuous bubbling within the water seal chamber
- D. Equal amounts of fluid drainage in each collection chamber
Correct answer: A
Rationale: Fluctuation of the fluid level within the water seal chamber indicates proper functioning of the chest tube. This fluctuation reflects the normal ebb and flow of air and fluid in the pleural space, demonstrating that the system is maintaining the appropriate pressure. Continuous bubbling in the water seal chamber may indicate an air leak, absence of fluid in the drainage tubing suggests a blockage, and equal amounts of fluid drainage in each collection chamber are not expected in this system.
2. A healthcare professional is assessing a client with rheumatoid arthritis. Which assessment finding is most characteristic of this disease?
- A. Asymmetrical joint involvement
- B. Heberden's nodes
- C. Morning stiffness lasting more than 30 minutes
- D. Pain that worsens with activity
Correct answer: C
Rationale: Morning stiffness lasting more than 30 minutes is a hallmark symptom of rheumatoid arthritis. This prolonged morning stiffness is typically a distinguishing feature of rheumatoid arthritis compared to other types of arthritis, making it the most characteristic assessment finding for this disease.
3. A healthcare professional is caring for a client who has just developed a pulmonary embolism. Which of the following medications should the healthcare professional anticipate administering?
- A. Furosemide
- B. Dexamethasone
- C. Heparin
- D. Atropine
Correct answer: C
Rationale: In the scenario of a pulmonary embolism, the priority medication to administer is Heparin. Heparin is an anticoagulant that helps prevent the formation of new blood clots and the growth of existing ones, which is crucial in managing pulmonary embolism. Furosemide is a diuretic used to treat fluid retention, Dexamethasone is a corticosteroid used for inflammation, and Atropine is an anticholinergic medication used for various purposes such as treating bradycardia.
4. A client with asthma is being taught about peak flow meter use. Which statement by the client indicates understanding of the teaching?
- A. I will use my peak flow meter every morning.
- B. I will use my peak flow meter when I feel short of breath.
- C. I will use my peak flow meter before using my inhaler.
- D. I will use my peak flow meter after using my inhaler.
Correct answer: A
Rationale: The correct answer is A. Using the peak flow meter every morning is crucial for monitoring asthma control and making timely treatment adjustments. While using the meter when feeling short of breath or before using an inhaler can also be beneficial, the daily morning routine helps in consistent management of asthma symptoms.
5. A client's arterial blood gas results show a pH of 7.3 and a PaCO2 of 50 mm Hg. The client is experiencing which of the following acid-base imbalances?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
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.
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