HESI RN
RN HESI Exit Exam
1. A woman who takes pyridostigmine for myasthenia gravis (MG) arrives at the emergency department complaining of extreme muscle weakness. Her adult daughter tells the nurse that since yesterday her mother has been unable to smile. Which assessment finding warrants immediate intervention by the nurse?
- A. Uncontrollable drooling.
 - B. Inability to raise voice.
 - C. Tingling of extremities.
 - D. Eyelid drooping.
 
Correct answer: A
Rationale: Uncontrollable drooling can be a sign of a myasthenic crisis, which requires immediate medical intervention to prevent respiratory failure. Drooling indicates difficulty in swallowing, which can lead to aspiration and respiratory compromise. Inability to raise voice (choice B) and tingling of extremities (choice C) are not typically associated with myasthenic crisis. Although eyelid drooping (choice D) is a common symptom of myasthenia gravis, it is not as urgent as uncontrollable drooling in indicating a potential crisis.
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. A client with a history of chronic kidney disease (CKD) is scheduled for a CT scan with contrast. Which laboratory value should the nurse review before the procedure?
- A. Serum creatinine
 - B. Blood urea nitrogen (BUN)
 - C. Serum potassium
 - D. Serum glucose
 
Correct answer: A
Rationale: The correct answer is A: Serum creatinine. Before a CT scan with contrast, the nurse should review the serum creatinine level. This is crucial in patients with CKD because contrast agents can potentially worsen kidney function and lead to contrast-induced nephropathy. Monitoring serum creatinine helps assess kidney function and determine the risk of complications. Choices B, C, and D are less relevant in this scenario. Blood urea nitrogen (BUN) is another marker of kidney function, but serum creatinine is a more specific indicator. Serum potassium levels are important in assessing electrolyte balance but are not directly related to the risk of contrast-induced nephropathy. Serum glucose levels are not typically a primary concern before a CT scan with contrast in a patient with CKD.
4. 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.
5. A female client with type 2 diabetes reports that she has been taking her medications as prescribed but her blood glucose levels remain elevated. Which action should the nurse take first?
- A. Check the client's current blood glucose level.
 - B. Assess the client's diet and medication adherence.
 - C. Review the client's medication list for potential interactions.
 - D. Obtain a hemoglobin A1c level.
 
Correct answer: C
Rationale: The correct action the nurse should take first is to review the client's medication list for potential interactions. This step is crucial as it can help identify any medications that might be contributing to the elevated blood glucose levels. Checking the current blood glucose level (choice A) is important but not the first action to address the ongoing issue. Assessing the client's diet and medication adherence (choice B) is also important, but reviewing the medication list should be the initial step to rule out any drug-related causes. Obtaining a hemoglobin A1c level (choice D) is a valuable assessment but may not address the immediate need to identify potential medication interactions.
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