ATI LPN
ATI PN Comprehensive Predictor 2020 Answers
1. What are the complications of untreated deep vein thrombosis (DVT)?
- A. Pulmonary embolism and stroke
- B. Kidney failure and hypertension
- C. Liver failure and electrolyte imbalance
- D. Fluid overload and bradycardia
Correct answer: A
Rationale: Corrected Rationale: Untreated DVT can lead to complications such as pulmonary embolism and stroke. Pulmonary embolism occurs when a blood clot from the leg travels to the lungs, potentially blocking blood flow and causing respiratory distress. Stroke can occur if a blood clot dislodges from the leg veins, travels to the brain, and obstructs a blood vessel, leading to brain tissue damage. Both of these complications are life-threatening if not managed promptly. The other choices (B, C, D) do not represent common complications of untreated DVT and are therefore incorrect.
2. What are the primary causes of respiratory acidosis?
- A. Hypoventilation and lung disease
- B. Hyperventilation and pneumonia
- C. Increased oxygen saturation and tachypnea
- D. Dehydration and hypoxia
Correct answer: A
Rationale: The correct answer is A: Hypoventilation and lung disease. Respiratory acidosis occurs when there is an accumulation of CO2 in the body due to inadequate ventilation. Hypoventilation, which reduces the elimination of CO2, and lung diseases that impair gas exchange are the primary causes. Choice B is incorrect because hyperventilation, not hypoventilation, leads to respiratory alkalosis, not acidosis. Choice C is incorrect because increased oxygen saturation and tachypnea do not directly cause respiratory acidosis. Choice D is incorrect as dehydration and hypoxia do not typically lead to respiratory acidosis.
3. A nurse is reinforcing discharge teaching about car seat safety with the guardian of a newborn. Which of the following statements by the guardian indicates an understanding of the teaching?
- A. I will position the car seat in the front seat
- B. I will secure the car seat in the car by using the seatbelt
- C. I will use a rear-facing car seat
- D. I will install the car seat facing forward
Correct answer: C
Rationale: The correct answer is C. Using a rear-facing car seat is the safest position for a newborn. Newborns should always be placed in a rear-facing car seat in the back seat of the vehicle to provide optimal safety in case of a crash. Choice A is incorrect because placing the car seat in the front seat is not safe due to the presence of airbags. Choice B is incorrect as securing the car seat using the seatbelt is not specific to the correct positioning of the car seat. Choice D is incorrect because installing the car seat facing forward is not recommended for newborns as it does not provide the same level of protection as a rear-facing position.
4. A nurse is preparing to administer digoxin to a client who has heart failure. Which of the following findings should indicate to the nurse that the medication has been effective?
- A. Cardiac workload decreases
- B. Blood pressure increases
- C. Respiratory rate increases
- D. Temperature decreases
Correct answer: A
Rationale: The correct answer is A: Cardiac workload decreases. Digoxin helps reduce cardiac workload in clients with heart failure, improving symptoms. This reduction in workload indicates that the medication is effective. Choice B, blood pressure increases, is incorrect because digoxin typically does not directly affect blood pressure. Choice C, respiratory rate increases, is incorrect as an increased respiratory rate is not a typical indicator of digoxin effectiveness. Choice D, temperature decreases, is also incorrect as digoxin does not typically affect body temperature.
5. A nurse is caring for a client who is receiving total parenteral nutrition (TPN). Which of the following actions should the nurse take to prevent infection?
- A. Monitor the client's electrolyte levels
- B. Change the TPN tubing every 24 hours
- C. Monitor blood glucose levels every 4 hours
- D. Administer insulin as prescribed
Correct answer: B
Rationale: The correct answer is B. Changing the TPN tubing every 24 hours is crucial in preventing infection by reducing the risk of bacterial contamination. Monitoring electrolyte levels (choice A) is essential but not directly related to preventing TPN-related infections. Monitoring blood glucose levels (choice C) is important for clients receiving TPN, but it is more related to glycemic control than infection prevention. Administering insulin as prescribed (choice D) is necessary for clients with diabetes but is not directly linked to preventing TPN-related infections.
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