HESI RN
HESI 799 RN Exit Exam
1. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?
- A. Serum creatine kinase (CK)
- B. Serum troponin
- C. Serum myoglobin
- D. C-reactive protein (CRP)
Correct answer: B
Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.
2. Which nursing intervention has the highest priority for a multigravida who delivered twins and is at risk for postpartum hemorrhage?
- A. Maintain cold packs on the perineum for 24 hours.
- B. Assess the client's pain level frequently.
- C. Observe for appropriate interaction with the infants.
- D. Assess fundal tone and lochia flow.
Correct answer: D
Rationale: Assessing fundal tone and lochia flow is crucial in the early detection and prevention of postpartum hemorrhage. Fundal tone helps identify uterine atony, a common cause of postpartum hemorrhage, while monitoring lochia flow can indicate excessive bleeding. Cold packs on the perineum, although helpful for pain and swelling, are not the priority in this situation. Pain assessment and observing interactions with infants are important but secondary to assessing for signs of postpartum hemorrhage.
3. The nurse and an unlicensed assistive personnel (UAP) are providing care for a client with a nasogastric tube (NGT) when the client begins to vomit. How should the nurse manage this situation?
- A. Direct the UAP to measure the emesis while the nurse irrigates the NGT
- B. Stop the NGT feed and notify the healthcare provider
- C. Increase the NGT suction pressure
- D. Elevate the head of the bed
Correct answer: A
Rationale: During vomiting in a client with an NGT, it is essential for the nurse to direct the UAP to measure the emesis to monitor the output. This helps in assessing the client's condition and response to treatment. Meanwhile, irrigating the NGT can be beneficial to relieve any obstruction that might be contributing to the vomiting. Stopping the NGT feed and notifying the healthcare provider (choice B) is important but not the immediate action needed. Increasing the NGT suction pressure (choice C) is unnecessary and can lead to complications. Elevating the head of the bed (choice D) is a general intervention to prevent aspiration but may not address the immediate issue of managing the vomiting episode and potential tube obstruction.
4. The nurse is caring for a client with diabetic ketoacidosis (DKA). Which laboratory value requires immediate intervention?
- A. Serum glucose of 300 mg/dL
- B. Serum potassium of 4.5 mEq/L
- C. Serum bicarbonate of 15 mEq/L
- D. Serum pH of 7.28
Correct answer: D
Rationale: A serum pH of 7.28 indicates metabolic acidosis in a client with diabetic ketoacidosis (DKA), requiring immediate intervention. In DKA, the body produces excess ketones, leading to acidosis. Monitoring and correcting the pH level is crucial in managing DKA. Serum glucose levels may be high in DKA, but the immediate concern is correcting the acidosis to prevent complications. Serum potassium and bicarbonate levels are also important but not as immediately critical as correcting the acidosis in DKA.
5. A female client reports that her hair is becoming coarse and breaking off, the outer part of her eyebrows has disappeared, and her eyes are all puffy. Which follow-up question is best for the nurse to ask?
- A. Is there a history of female baldness in your family?
- B. Are you under any unusual stress at home or work?
- C. Do you work with hazardous chemicals?
- D. Have you noticed any changes in your fingernails?
Correct answer: D
Rationale: The correct answer is D because the manifestations reported by the client, such as coarse hair, missing eyebrows, and puffy eyes, are indicative of hypothyroidism. Changes in the fingernails, such as brittle or pitted nails, can also be associated with hypothyroidism. Option A is incorrect as female baldness is not directly related to the reported symptoms. Option B is less relevant as stress typically does not cause these specific symptoms. Option C is also less relevant as exposure to hazardous chemicals would present with different symptoms.
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