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. 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.
3. Several clients on a telemetry unit are scheduled for discharge in the morning, but a telemetry-monitored bed is needed immediately. The charge nurse should make arrangements to transfer which client to another medical unit?
- A. Learning to self-administer insulin injections after being diagnosed with diabetes mellitus
- B. Ambulatory following coronary artery bypass graft surgery performed six days ago
- C. Wearing a sling immobilizer following permanent pacemaker insertion earlier that day
- D. Experiencing syncopal episodes resulting from the dehydration caused by severe diarrhea
Correct answer: A
Rationale: The correct answer is A because transferring a stable client who is learning self-care, such as self-administering insulin injections after being diagnosed with diabetes mellitus, provides the needed telemetry-monitored bed without compromising the client's care. Choice B should not be transferred as the client is ambulatory following surgery and does not require telemetry monitoring. Choice C should not be transferred as the client is wearing a sling immobilizer following pacemaker insertion, which requires close monitoring. Choice D should not be transferred as the client is experiencing syncopal episodes due to severe dehydration, necessitating telemetry monitoring for immediate intervention.
4. A 24-year-old female client who has a history of rheumatoid arthritis (RA) is taking ibuprofen (Motrin) for pain relief. Which information should the nurse provide the client about taking this medication?
- A. Take the medication with meals
- B. Take the medication with an antacid
- C. Report any changes in stool color to your healthcare provider
- D. Avoid taking aspirin while using this medication
Correct answer: C
Rationale: The correct answer is to instruct the client to report any changes in stool color to the healthcare provider. This is important because changes in stool color can indicate gastrointestinal bleeding, a serious side effect of nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen. Choice A is incorrect because while taking ibuprofen with meals can help reduce stomach upset, it is not the most crucial information to provide. Choice B is incorrect as taking ibuprofen with an antacid is not a standard recommendation. Choice D is also incorrect because while ibuprofen and aspirin are both NSAIDs, they can be taken together under certain circumstances, but it's important to be cautious and follow healthcare provider recommendations.
5. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
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