ATI RN
Critical Care Nursing NCLEX Questions Questions
Question 1 of 5
A 53-year-old, 80-kg patient is admitted to the cardiac sur gical intensive care unit after cardiac surgery with the following arterial blood gas (ABG ) levels. What is the nurse’s interpretation of these values? pH 7.4 PaCO 40 mm Hg Bicarbonate 24 mEq/L PaO 95 mm Hg O saturation 97% Respirations 20 breaths per minute
Correct Answer: C
Rationale: The correct interpretation is C: Normal ABG values. 1. pH is within the normal range of 7.35-7.45. 2. PaCO2 is 40 mm Hg, within the normal range of 35-45 mm Hg. 3. Bicarbonate is 24 mEq/L, within the normal range of 22-26 mEq/L. 4. PaO2 is 95 mm Hg, within the normal range of 80-100 mm Hg. 5. Oxygen saturation is 97%, which is normal. 6. Respirations are also within the normal range at 20 breaths per minute. Overall, all values fall within the normal range, indicating a well-maintained acid-base balance. Other choices are incorrect because there are no abnormalities that would suggest compensated metabolic acidosis, metabolic alkalosis, or respiratory acidosis based on the given ABG values.
Question 2 of 5
The nurse is assisting with endotracheal intubation of the p atient and recognizes that the procedure will be done in what order? (Put a comma and s pace between each answer choice.)
Correct Answer: D
Rationale: The correct answer is D. The first step in endotracheal intubation is to insert the endotracheal tube with a laryngoscope and blade to visualize the vocal cords and guide the tube into the trachea. This ensures proper placement of the tube for effective ventilation. Assessing the balloon symmetry (Choice A) and lung fields (Choice B) would come after the tube is successfully inserted. Inflating the balloon of the endotracheal tube (Choice C) should be the last step to secure the tube in place.
Question 3 of 5
In assessing a patient, the nurse understands that what sym ptomology is an early sign of hypoxemia?
Correct Answer: D
Rationale: Step 1: Restlessness is an early sign of hypoxemia due to the body's response to low oxygen levels. Step 2: Restlessness occurs as the body tries to increase oxygen intake. Step 3: Other choices are incorrect because clubbing and cyanosis are late signs, while hypotension is not a specific early sign of hypoxemia.
Question 4 of 5
The nurse is discharging a patient home following treatment for community-acquired pneumonia. As part of the discharge teaching, the nurse sh ould provide instruction?
Correct Answer: B
Rationale: Step 1: Influenza can lead to pneumonia as a complication, so getting an annual flu shot can reduce the risk of pneumonia. Step 2: Providing education on the importance of prevention aligns with discharge teaching goals. Step 3: Option A is incorrect as the pneumococcal vaccine doesn't guarantee immunity from all causes of pneumonia. Step 4: Option C is incorrect as cold or drafty places do not directly cause pneumonia. Step 5: Option D is incorrect as having pneumonia once does not confer permanent immunity.
Question 5 of 5
A patient at high risk for pulmonary embolism is receiving enoxaparin. The nurse should provide the patient with what explanation?
Correct Answer: B
Rationale: The correct answer is B: “This injection is being given to prevent blood clots from forming.” Enoxaparin is an anticoagulant used to prevent blood clots. It is administered through injection, not orally (A). Enoxaparin does not dissolve existing blood clots (C). Contacting the primary care provider to discuss the medication is not necessary in this scenario (D). The correct choice emphasizes the purpose of enoxaparin in preventing new blood clots.