HESI RN
HESI 799 RN Exit Exam
1. A client with a history of atrial fibrillation is admitted with a new onset of confusion. Which laboratory value should the nurse monitor closely?
- A. International Normalized Ratio (INR)
- B. Serum glucose level
- C. White blood cell count
- D. Prothrombin time (PT)
Correct answer: A
Rationale: The correct answer is A: International Normalized Ratio (INR). The INR should be closely monitored in a client with atrial fibrillation to assess the effectiveness and safety of anticoagulation therapy with warfarin. Monitoring the INR helps to ensure that the client is within the therapeutic range to prevent complications such as thrombosis or bleeding. Choices B, C, and D are less relevant in this scenario. While serum glucose levels are important in assessing metabolic status, and white blood cell count and prothrombin time are important indicators for other conditions, they are not the primary focus when a client with atrial fibrillation presents with confusion.
2. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?
- A. INR of 3.0
- B. Prothrombin time (PT) of 15 seconds
- C. Hemoglobin of 10 g/dl
- D. White blood cell count
Correct answer: A
Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.
3. An elderly client seems confused and reports the onset of nausea, dysuria, and urgency with incontinence. Which action should the nurse implement?
- A. Auscultate for renal bruits
- B. Obtain a clean catch mid-stream specimen
- C. Use a dipstick to measure for urinary ketones
- D. Begin to strain the client's urine
Correct answer: B
Rationale: This elderly client is presenting symptoms consistent with a urinary tract infection (UTI), such as confusion, nausea, dysuria, urgency, and incontinence. The best course of action for the nurse is to obtain a clean catch mid-stream specimen. This specimen will help identify the causative agent of the UTI, allowing for targeted treatment with an appropriate anti-infective agent. Auscultating for renal bruits (Choice A) is not indicated in this scenario as the client's symptoms point towards a UTI rather than a renal issue. Using a dipstick to measure for urinary ketones (Choice C) is not relevant in the context of UTI symptoms. Beginning to strain the client's urine (Choice D) would not address the need to identify the causative agent for targeted treatment.
4. An adult male who lives alone is brought to the Emergency Department by his daughter who found him unresponsive. Initial assessment indicated that the client has minimal respiratory effort, and his pupils are fixed and dilated. At the daughter's request, the client is intubated and ventilated. Which nursing intervention has the highest priority?
- A. Notify the client's minister of his condition.
- B. Determine if the client has an executed living will.
- C. Provide the family with information about palliative care.
- D. Discuss the possibility of organ donation with the family.
Correct answer: B
Rationale: Verifying whether the client has an executed living will is crucial to ensuring that his treatment preferences are followed. In this critical situation, knowing the client's wishes regarding medical interventions is paramount. Options A, C, and D are not the highest priority as they do not directly address the immediate need to determine the client's treatment preferences.
5. An adult female client with chronic kidney disease (CKD) asks the nurse if she can continue taking her over-the-counter medications. Which medication poses the greatest threat to this client?
- A. Magnesium hydroxide (Maalox).
- B. Birth control pills.
- C. Cough syrup containing codeine.
- D. Cold medication containing alcohol.
Correct answer: A
Rationale: The correct answer is A, Magnesium hydroxide (Maalox). In clients with chronic kidney disease (CKD), magnesium can accumulate to toxic levels as the kidneys are unable to excrete it efficiently. This can lead to hypermagnesemia, causing serious and potentially life-threatening complications. Birth control pills (choice B) are metabolized mainly by the liver and do not pose a significant threat to clients with CKD. Cough syrup containing codeine (choice C) should be used cautiously in CKD due to the risk of respiratory depression but does not pose as great a threat as magnesium accumulation. Cold medication containing alcohol (choice D) should be avoided in CKD but does not present the same level of danger as magnesium toxicity.
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