HESI LPN
Adult Health 1 Exam 1
1. The healthcare provider is assessing a client who has just undergone a thyroidectomy. Which assessment finding is most concerning?
- A. Hoarseness of the voice
- B. Slight swelling at the incision site
- C. Tingling around the mouth
- D. Mild fever
Correct answer: C
Rationale: Tingling around the mouth is the most concerning finding as it may indicate hypocalcemia, a potential complication after thyroidectomy. Hoarseness of the voice is common due to surgical manipulation, slight swelling at the incision site is expected postoperatively, and mild fever can be a normal inflammatory response. Hypocalcemia after thyroidectomy can lead to serious complications and should be addressed promptly to prevent further issues.
2. A client with chronic kidney disease is being evaluated for dialysis. Which laboratory value would be most concerning to the nurse?
- A. Hemoglobin 9.5 g/dL
- B. Potassium 6.2 mEq/L
- C. Creatinine 3.5 mg/dL
- D. BUN 50 mg/dL
Correct answer: B
Rationale: The correct answer is B: Potassium 6.2 mEq/L. In chronic kidney disease, the kidneys struggle to regulate potassium levels, leading to hyperkalemia. A potassium level of 6.2 mEq/L is dangerously high and can cause life-threatening cardiac arrhythmias. Hemoglobin of 9.5 g/dL may indicate anemia, which is common in chronic kidney disease but is not immediately life-threatening. Creatinine and BUN levels are markers of kidney function; although elevated levels indicate kidney impairment, they are not acutely life-threatening like severe hyperkalemia.
3. A 9-year-old is receiving vancomycin 400 mg IV every 6 hours for a methicillin-resistant (Beta-lactam-resistant) Staphylococci aureus (MRSA) infection. The medication is diluted in a 100 mL bag of saline with instructions to infuse over one and a half hours. How many mL/hour should the nurse program the infusion pump?
- A. 50
- B. 67
- C. 57
- D. 70
Correct answer: B
Rationale: To calculate the infusion rate for vancomycin, you need to divide the total volume by the total time of infusion. In this case, the total volume is 100 mL, and the total time is 1.5 hours. Therefore, 100 mL ÷ 1.5 hours = 67 mL/hour. This means the nurse should program the infusion pump to deliver vancomycin at a rate of 67 mL/hour. Choice A (50) is incorrect as it does not reflect the correct calculation. Choice C (57) is incorrect as it is not the accurate calculation based on the provided information. Choice D (70) is incorrect as it does not correspond to the correct infusion rate calculation.
4. When counting a client's radial pulse, the nurse notes the pulse is weak and irregular. To record the most accurate heart rate, what should the nurse do?
- A. Recheck the radial pulse in thirty minutes
- B. Palpate the radial pulse for thirty seconds and double the rate
- C. Count the apical pulse rate for sixty seconds
- D. Compare the radial pulse rate bilaterally and record the higher rate
Correct answer: C
Rationale: The correct answer is to count the apical pulse rate for sixty seconds. The apical pulse is more accurate, especially when peripheral pulses are weak or irregular. Counting the apical pulse for a full minute provides a more precise heart rate measurement. Option A is incorrect because waiting for thirty minutes is unnecessary and could delay potential interventions. Option B is incorrect because doubling the radial pulse rate may not provide an accurate representation of the heart rate. Option D is incorrect because comparing radial pulses bilaterally does not give the most accurate heart rate measurement; the apical pulse is preferred in this situation.
5. A client with a diagnosis of hypothyroidism is prescribed levothyroxine (Synthroid). Which symptom should prompt the nurse to notify the healthcare provider?
- A. Weight gain.
- B. Bradycardia.
- C. Nervousness and tremors.
- D. Fatigue.
Correct answer: C
Rationale: The correct answer is C: 'Nervousness and tremors.' In a client with hypothyroidism prescribed levothyroxine, the development of nervousness and tremors may indicate hyperthyroidism, which can result from excessive dosing of levothyroxine. Therefore, the nurse should promptly notify the healthcare provider to adjust the medication dosage. Choices A, B, and D are incorrect because weight gain, bradycardia, and fatigue are more commonly associated with hypothyroidism itself, indicating that the levothyroxine therapy may not be effective enough, rather than being signs of excessive dosing.
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