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 client with end-stage renal disease (ESRD) is receiving hemodialysis. Which assessment finding indicates a need for immediate action?
- A. Weight gain of 1 kg since the last dialysis session
- B. Blood pressure of 150/90 mm Hg
- C. Potassium level of 6.5 mEq/L
- D. Hemoglobin level of 10 g/dL
Correct answer: C
Rationale: A potassium level of 6.5 mEq/L is critically high and can lead to life-threatening cardiac dysrhythmias, requiring immediate intervention. Hyperkalemia is a common complication in clients with ESRD due to the kidneys' inability to excrete potassium effectively. High potassium levels can result in serious cardiac consequences such as arrhythmias, cardiac arrest, and death. Prompt action is necessary to prevent these severe complications.
3. A client with chronic obstructive pulmonary disease (COPD) is being assessed by a nurse. Which finding should the nurse expect?
- A. Increased anterior-posterior (AP) chest diameter
- B. Decreased respiratory rate
- C. Weight gain
- D. Productive cough with yellow sputum
Correct answer: A
Rationale: In COPD, the client often develops a barrel chest, characterized by an increased anterior-posterior diameter of the chest. This change is due to air trapping and hyperinflation of the lungs. Decreased respiratory rate, weight gain, and productive cough with yellow sputum are not typically associated with COPD. Weight loss is more common due to increased work of breathing and decreased energy expenditure in individuals with COPD.
4. While suctioning the endotracheal tube of a client on a ventilator, the nurse notices an increase in the client's heart rate from 86/min to 110/min, with irregularity. What should the nurse do next?
- A. Obtain a cardiology consult.
- B. Suction the client less frequently.
- C. Administer an antidysrhythmic medication.
- D. Perform pre-oxygenation prior to suctioning.
Correct answer: D
Rationale: When a client's heart rate increases and becomes irregular during suctioning of an endotracheal tube, it indicates potential hypoxemia. Performing pre-oxygenation before suctioning helps prevent hypoxemia and subsequent dysrhythmias. This intervention ensures that the client has adequate oxygen reserves before the procedure, reducing the risk of complications related to suctioning.
5. A client is wearing a Venturi mask to receive oxygen, and the dinner tray has arrived. What action by the nurse is best?
- A. Assess the client's oxygen saturation and, if normal, turn off the oxygen.
- B. Determine if the client can switch to a nasal cannula during the meal.
- C. Have the client lift the mask off the face when taking bites of food.
- D. Turn off the oxygen while the client eats the meal and then restart it.
Correct answer: B
Rationale: In this scenario, the nurse should determine if the client can safely switch to a nasal cannula during meals. It is crucial to ensure that the provider has approved this change. Oxygen is considered a medication and should be delivered continuously. Turning off the oxygen or lifting the mask while eating can lead to a decrease in the FiO2 delivered, potentially compromising the client's oxygenation status. Therefore, the best course of action is to ascertain if transitioning to a nasal cannula is appropriate for the client during the meal.
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