ATI RN
Cardiovascular System Exam Questions And Answers
1. What is a condition where the lungs become stiff and scarred, making it difficult to breathe and get enough oxygen into the bloodstream?
- A. Pulmonary fibrosis
- B. Pulmonary edema
- C. Pulmonary embolism
- D. Pulmonary hypertension
Correct answer: A
Rationale: Pulmonary fibrosis is a condition characterized by the stiffening and scarring of the lungs, leading to difficulty breathing and impairing the transfer of oxygen into the bloodstream. Pulmonary edema refers to fluid accumulation in the lungs, causing breathing difficulties due to fluid filling the air sacs. Pulmonary embolism is a blockage in one of the pulmonary arteries in the lungs, often caused by a blood clot. Pulmonary hypertension is high blood pressure in the arteries of the lungs, which can lead to strain on the heart and affect oxygen levels in the blood.
2. What is the next food texture after 'soft and bite-sized pieces of meltable and soft-solid foods'?
- A. Regular
- B. Liquidized
- C. Pur�ed
- D. Minced and Moist
Correct answer: A
Rationale: After mastering soft and bite-sized pieces, children typically progress to regular table foods.
3. A client receiving total parenteral nutrition (TPN is awaiting the next container. What fluid should the nurse infuse in the interim?
- A. Dextrose 5% in water
- B. 0.9% sodium chloride
- C. Dextrose 10% in water
- D. Lactated Ringer’s solution
Correct answer: 0.9% sodium chloride
Rationale: The correct answer is 0.9% sodium chloride. When a client receiving TPN is awaiting the next container, infusing 0.9% sodium chloride is the appropriate choice to maintain fluid and electrolyte balance. Dextrose solutions are not recommended as they do not provide sufficient nutrition. Lactated Ringer’s solution contains electrolytes but lacks essential nutrients found in TPN, making it an inadequate choice during the delay in TPN delivery.
4. The client on digoxin has a potassium level of 3.0 mEq/L. What is the nurse’s priority action?
- A. Administer a potassium supplement
- B. Hold the digoxin and notify the healthcare provider
- C. Continue the current digoxin dose
- D. Administer Digibind
Correct answer: B
Rationale: The correct answer is to hold the digoxin and notify the healthcare provider. A potassium level of 3.0 mEq/L indicates hypokalemia, which can increase the risk of digoxin toxicity. Digoxin and low potassium levels can lead to serious cardiac arrhythmias. Administering a potassium supplement (choice A) without healthcare provider guidance can worsen the situation. Continuing the current digoxin dose (choice C) can further increase the risk of toxicity. Administering Digibind (choice D) is used in severe cases of digoxin toxicity, not for addressing low potassium levels.
5. A nurse is caring for a client who has diarrhea due to shigella. Which of the following precautions should the nurse take?
- A. Wear gloves only
- B. Wear a mask
- C. Wash hands before and after client care
- D. Use an N95 respirator
Correct answer: C
Rationale: The correct precaution for a nurse caring for a client with shigella-induced diarrhea is to wash hands before and after client care. Shigella is a highly contagious bacterium that spreads through contaminated food, water, or contact with infected individuals. While wearing gloves is important when directly handling bodily fluids, hand hygiene is crucial in preventing the transmission of the infection. Wearing a mask or using an N95 respirator is not necessary for preventing the spread of shigella, as it primarily spreads through the fecal-oral route rather than through respiratory droplets.
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