ATI RN
Critical Care Nursing Questions and Answers PDF Questions
Question 1 of 5
The patient is diagnosed with acute kidney injury and has been getting dialysis 3 days per week. The patient complains of general malaise and is tachypneic. An arterial blood gas shows that the patient’s pH is 7.19, with a PCO of 30 mm Hg and a bicarbonate level of 13 mEq/L. The nurse prepares to
Correct Answer: C
Rationale: The correct answer is C: administer intravenous sodium bicarbonate. In this case, the patient has metabolic acidosis with a low pH and low bicarbonate levels. Administering sodium bicarbonate can help correct the acidosis by increasing the bicarbonate levels and improving the pH. This treatment is essential to address the underlying metabolic imbalance. Choice A is incorrect because administering morphine would not address the root cause of the acidosis and could potentially worsen the respiratory status. Choice B is incorrect as intubation and mechanical ventilation are not indicated solely based on the acid-base imbalance. Choice D is also incorrect as canceling the dialysis session would not address the metabolic acidosis and could potentially worsen the patient's condition.
Question 2 of 5
Continuous venovenous hemodialysis is used to
Correct Answer: D
Rationale: The correct answer is D because continuous venovenous hemodialysis combines ultrafiltration, convection, and dialysis techniques. Ultrafiltration removes excess fluid, convection helps in removing solutes, and dialysis involves the diffusion of solutes across a semipermeable membrane. This comprehensive approach ensures effective removal of both fluid and solutes in critically ill patients. Incorrect Answer Analysis: A: Removing fluids and solutes through convection alone is not the complete process in continuous venovenous hemodialysis. B: While volume overload is addressed, continuous venovenous hemodialysis involves more than just removing plasma water. C: Adding dialysate is not the primary method in continuous venovenous hemodialysis; it involves ultrafiltration, convection, and dialysis techniques.
Question 3 of 5
The patient has been admitted to the hospital with nausea and vomiting that started 5 days earlier. Blood pressure is 80/44 mm Hg and heart rate is 122 beats/min; the patient has not voided in 8 hours, and the bladder is not distended. The nurse anticipates a prescription for “stat” administration of
Correct Answer: B
Rationale: The correct answer is B: fluid replacement with 0.45% saline. The patient's low blood pressure, tachycardia, and lack of urine output indicate hypovolemia. Fluid replacement with saline will help restore circulating volume, improve blood pressure, and support renal perfusion. A: Blood transfusion is not indicated as the primary issue is hypovolemia, not anemia. C: Inotropic agents are used to increase cardiac contractility but are not the initial treatment for hypovolemia. D: Antiemetics may help with symptoms but do not address the underlying issue of fluid loss and hypovolemia.
Question 4 of 5
The patient is in the critical care unit and will receive dialysis this morning. The nurse will (Select all that apply.)
Correct Answer: A
Rationale: The correct answer is A because evaluating morning lab results is crucial to monitor the patient's condition before dialysis. Abnormal results may impact the dialysis treatment plan. Option B is incorrect as administering antihypertensive medications is not directly related to dialysis. Option C is incorrect as assessing the dialysis access site is the responsibility of the dialysis team. Option D is incorrect as weighing the patient is not typically done immediately before dialysis.
Question 5 of 5
A client with osteoarthritis is given a new prescription for a nonsteroidal anti-inflammatory drug (NSAID). The client asks the nurse, 'How is this medication different from the acetaminophen I have been taking?' Which information about the therapeutic action of NSAIDs should the nurse provide?
Correct Answer: B
Rationale: The correct answer is B: Provide anti-inflammatory response. NSAIDs work by inhibiting the enzyme cyclooxygenase, thereby reducing inflammation, pain, and fever. This is different from acetaminophen, which primarily acts as a pain reliever and fever reducer but lacks significant anti-inflammatory properties. Explanation of why other choices are incorrect: A: Are less expensive - Cost is not related to the therapeutic action of NSAIDs. C: Increase hepatotoxic side effects - While NSAIDs can have adverse effects on the liver, hepatotoxicity is not a primary therapeutic action of these drugs. D: Cause gastrointestinal bleeding - While NSAIDs can increase the risk of gastrointestinal bleeding, this is a potential side effect rather than the primary therapeutic action.