HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which laboratory value is most concerning?
- A. Serum glucose of 300 mg/dl
- B. Serum bicarbonate of 18 mEq/L
- C. Serum potassium of 5.5 mEq/L
- D. Serum sodium of 135 mEq/L
Correct answer: C
Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with DKA as it may indicate worsening hyperkalemia, requiring immediate intervention. Elevated serum potassium levels can lead to life-threatening cardiac arrhythmias. While elevated glucose and low bicarbonate are characteristic of DKA, hyperkalemia poses a higher immediate risk. Serum sodium within the normal range is not typically a primary concern in DKA.
2. A male client with impaired renal function who takes ibuprofen daily for chronic arthritis is showing signs of gastrointestinal (GI) bleeding. After administering IV fluids and a blood transfusion, his blood pressure is 100/70 mm Hg, and his renal output is 20 ml/hour. Which intervention should the nurse include in his care plan?
- A. Maintain the client NPO during the diuresis phase.
- B. Evaluate daily serial renal laboratory studies for progressive elevations.
- C. Observe the urine character for sedimentation and cloudy appearance.
- D. Monitor for the onset of polyuria greater than 150 ml/hour.
Correct answer: B
Rationale: In this scenario, the correct intervention for the nurse to include in the care plan is to evaluate daily serial renal laboratory studies for progressive elevations. This is crucial in monitoring renal function and detecting any worsening renal impairment. Option A is not directly related to managing renal function in this case. Option C focuses more on urinary characteristics rather than renal function monitoring. Option D addresses polyuria, which is an excessive urine output, but it does not specifically address the need for evaluating renal laboratory studies for progressive elevations.
3. When caring for a client with traumatic brain injury (TBI) who had a craniotomy for increased intracranial pressure (ICP), the nurse assesses the client using the Glasgow Coma Scale (GCS) every two hours. For the past 8 hours, the client's GCS score has been 14. What does this GCS finding indicate about the client?
- A. Neurologically stable without indications of increased ICP.
- B. At risk for neurological deterioration.
- C. Experiencing mild cognitive impairment.
- D. In need of immediate medical intervention.
Correct answer: A
Rationale: A GCS score of 14 indicates that the client is neurologically stable without indications of increased ICP. It suggests that the client's neurological status is relatively intact, with only mild impairment, if any. This finding reassures the nurse that there are currently no signs of deterioration or immediate need for intervention. Choice B is incorrect because a GCS score of 14 does not necessarily indicate immediate risk for neurological deterioration. Choice C is incorrect as mild cognitive impairment is not typically inferred from a GCS score of 14. Choice D is incorrect as immediate medical intervention is not warranted based on a GCS score of 14 without other concerning symptoms.
4. A client is admitted with a diagnosis of septic shock. Which clinical finding requires immediate intervention?
- A. Blood pressure of 90/60 mmHg
- B. Temperature of 100.4°F
- C. Heart rate of 120 beats per minute
- D. Urine output of 30 ml/hour
Correct answer: C
Rationale: In a client with septic shock, a heart rate of 120 beats per minute is a critical clinical finding that requires immediate intervention. A rapid heart rate can indicate worsening sepsis and inadequate tissue perfusion. Correcting the underlying cause of the tachycardia and stabilizing the heart rate is crucial in managing septic shock. The other options, while important, do not represent an immediate threat to the patient's condition. A blood pressure of 90/60 mmHg may be expected in septic shock, a temperature of 100.4°F is mildly elevated, and a urine output of 30 ml/hour, though decreased, may not be an immediate concern in the context of septic shock.
5. 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.
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