HESI RN
HESI RN CAT Exit Exam
1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?
- A. It dissolves blood clots
- B. It prevents the blood from clotting
- C. It thins the blood
- D. It decreases the risk of infection
Correct answer: B
Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.
2. The nurse is caring for a client who has a chest tube in place following a pneumothorax. The nurse notes that there is continuous bubbling in the water seal chamber of the chest tube drainage system. What action should the nurse take?
- A. Check for kinks in the tubing
- B. Notify the healthcare provider
- C. Replace the chest tube drainage system
- D. Reinforce the chest tube dressing
Correct answer: B
Rationale: The correct action for the nurse to take when observing continuous bubbling in the water seal chamber of the chest tube drainage system is to notify the healthcare provider. Continuous bubbling indicates a possible air leak, and the healthcare provider needs to be informed to assess the situation and take appropriate actions. Checking for kinks in the tubing (Choice A) may be done initially but is not the priority when continuous bubbling is present. Replacing the chest tube drainage system (Choice C) and reinforcing the chest tube dressing (Choice D) are not immediate actions needed in response to continuous bubbling in the water seal chamber.
3. A male client tells the nurse, 'I am so stressed because I am expected to achieve excellence in everything. My job, my marriage, and my children must be perfect!' Which coping response should the nurse recognize that the client is using?
- A. Repression
- B. Sublimation
- C. Rationalization
- D. Displacement
Correct answer: C
Rationale: The correct answer is C: Rationalization. Rationalization is a defense mechanism where the client justifies their stress and need for perfection by creating logical explanations or excuses. In this case, the client is rationalizing their stress by believing that everything in their life must be perfect. Repression (choice A) involves unconsciously blocking out thoughts or feelings. Sublimation (choice B) is redirecting unacceptable impulses into socially acceptable activities. Displacement (choice D) involves transferring emotions from one target to another.
4. The nurse is preparing to administer the 0800 dose of 20 units of Humulin R to an 8-year-old girl diagnosed with Type 1 diabetes. The mother comments that her daughter is a very picky eater and many times does not eat meals. Which intervention should the nurse implement first?
- A. Administer the 20 Units of Humulin R subcutaneously as prescribed
- B. Ask the girl if she will be eating her breakfast this morning
- C. Discuss changing the insulin prescription to Lispro with the healthcare provider
- D. Explain to the mother the importance of eating the scheduled meals
Correct answer: B
Rationale: The correct answer is to ask the girl if she will be eating her breakfast this morning. This is important to determine if the child will be consuming food, which is crucial information before administering insulin. If the child does not plan to eat, administering the full dose of insulin may lead to hypoglycemia. Choice A is incorrect as administering the insulin without knowing if the child will eat can be dangerous. Choice C is not the first intervention because the immediate concern is the child's meal intake. Choice D, while important, is not the first step in this situation.
5. The nurse is planning care for a 2-year-old child who is scheduled for an infusion of immune globulin for treatment of idiopathic thrombocytopenic purpura (ITP). Which nursing diagnosis has the highest priority for this child?
- A. Risk for infection
- B. Risk for injury
- C. Altered oral mucous membranes
- D. Risk for fluid volume deficit
Correct answer: A
Rationale: The correct answer is 'Risk for infection.' When caring for a child with ITP scheduled for immune globulin infusion, the highest priority is to prevent infection. This is crucial due to the risk of bleeding associated with ITP and the immunosuppression that can be caused by the condition and its treatment. The other options, such as 'Risk for injury,' 'Altered oral mucous membranes,' and 'Risk for fluid volume deficit,' are not as high a priority as preventing infection in this particular situation.
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