ATI RN
ATI Fundamentals Proctored Exam 2024
1. Which of the following blood tests should be performed before a blood transfusion?
- A. Prothrombin and coagulation time
- B. Blood typing and cross-matching
- C. Bleeding and clotting time
- D. Complete blood count (CBC) and electrolyte levels
Correct answer: B
Rationale: Before administering a blood transfusion, it is crucial to perform blood typing and cross-matching to ensure compatibility between the donor's blood and the recipient's blood. This process helps prevent adverse reactions such as transfusion reactions, which can be life-threatening. Prothrombin and coagulation time, bleeding and clotting time, as well as CBC and electrolyte levels are important tests in other clinical contexts, but for blood transfusions, blood typing and cross-matching are essential to ensure patient safety.
2. Which of the following white blood cell (WBC) counts clearly indicates leukocytosis?
- A. 4,500/mm³
- B. 7,000/mm³
- C. 10,000/mm³
- D. 25,000/mm³
Correct answer: D
Rationale: Leukocytosis is defined as an increase in the total white blood cell count. A normal WBC count typically ranges from 4,500 to 10,000/mm³. A WBC count of 25,000/mm³, as indicated in choice D, is significantly higher than the normal range and clearly indicates leukocytosis.
3. A client has a new prescription for heparin therapy. Which of the following statements by the client should indicate an immediate concern for the nurse?
- A. ''I am allergic to morphine.''
- B. ''I take antacids several times a day.''
- C. ''I had a blood clot in my leg several years ago.''
- D. ''It hurts to take a deep breath.''
Correct answer: B
Rationale: The correct answer is the statement 'I take antacids several times a day.' Antacids can alter the absorption of heparin, potentially affecting its effectiveness and increasing the risk of clot formation. This is a significant concern as it can impact the therapeutic outcome of heparin therapy. The other statements are not directly related to potential complications or interactions with heparin therapy.
4. Which natural body defense plays an active role in preventing infection?
- A. Yawning
- B. Body hair
- C. Hiccupping
- D. Rapid eye movements
Correct answer: B
Rationale: Body hair plays an active role in preventing infection by acting as a filter to block pathogens. It helps to prevent harmful substances from entering the body through the skin, providing a physical barrier against potential infections.
5. Which of the following conditions may necessitate fluid restriction?
- A. Fever
- B. Chronic Obstructive Pulmonary Disease
- C. Renal Failure
- D. Dehydration
Correct answer: C
Rationale: Renal failure often necessitates fluid restriction to prevent fluid overload. In renal failure, the kidneys are unable to effectively filter and excrete excess fluids, leading to fluid accumulation in the body. Restricting fluid intake helps manage this condition by preventing further fluid buildup and complications such as edema and electrolyte imbalances.
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