HESI RN
HESI 799 RN Exit Exam
1. When a client with a history of atrial fibrillation is admitted with a new onset of confusion, which diagnostic test should the nurse anticipate preparing the client for first?
- A. Electrocardiogram (ECG)
- B. Chest X-ray
- C. Arterial blood gases (ABGs)
- D. Echocardiogram
Correct answer: A
Rationale: The correct answer is an Electrocardiogram (ECG). When a client with a history of atrial fibrillation presents with new-onset confusion, an ECG is crucial to assess for cardiac ischemia, which could be a potential cause of the confusion. A chest X-ray (Choice B) is not typically the first-line diagnostic test for evaluating confusion in a client with atrial fibrillation. Arterial blood gases (ABGs) (Choice C) are more useful in assessing oxygenation and acid-base balance rather than the cause of confusion in this scenario. While an echocardiogram (Choice D) provides valuable information about cardiac structure and function, it is usually not the initial diagnostic test needed in the evaluation of acute confusion in a client with atrial fibrillation.
2. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding is most concerning?
- A. Serum glucose of 500 mg/dL
- B. Serum glucose of 600 mg/dL
- C. Serum potassium of 5.5 mEq/L
- D. Serum bicarbonate of 18 mEq/L
Correct answer: D
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with DKA as it indicates metabolic acidosis, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis. A low serum bicarbonate level is a key indicator of this acid-base imbalance. Elevated serum glucose levels are expected in DKA but are managed through insulin therapy. Serum potassium levels can fluctuate in DKA due to insulin deficiency, but a value of 5.5 mEq/L is not as immediately concerning as metabolic acidosis. Therefore, the most critical finding in this scenario is the low serum bicarbonate level.
3. In caring for a client receiving the aminoglycoside antibiotic gentamicin, what diagnostic test should the nurse prioritize monitoring?
- A. Urinalysis
- B. Serum creatinine
- C. Serum osmolarity
- D. Liver enzymes
Correct answer: B
Rationale: The correct answer is B: Serum creatinine. Aminoglycosides, such as gentamicin, are known to cause nephrotoxicity, which can lead to kidney damage. Monitoring serum creatinine levels is crucial in assessing renal function and detecting any potential kidney problems early. Choices A, C, and D are incorrect because urinalysis primarily assesses urine composition, serum osmolarity measures the concentration of solutes in the blood, and liver enzymes are not directly impacted by aminoglycoside antibiotics like gentamicin.
4. During the initial visit, which intervention is most important for the nurse to implement?
- A. Determine how the client is cared for when the caregiver is not present.
- B. Develop a client needs assessment and review it with the caregiver.
- C. Evaluate the caregiver's ability to care for the client's needs.
- D. Review with the caregiver the interventions provided each day.
Correct answer: A
Rationale: The most important intervention for the nurse to implement during the initial visit is to determine how the client is cared for when the caregiver is not present. This is crucial for ensuring continuous and adequate care, especially for a bed-bound client with multiple sclerosis who relies heavily on the caregiver. While developing a client needs assessment (choice B) and evaluating the caregiver's ability (choice C) are important, understanding the care plan in the caregiver's absence takes precedence. Reviewing daily interventions with the caregiver (choice D) is valuable but not as critical as knowing the care plan during the caregiver's absence.
5. 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.
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