HESI RN
HESI RN Exit Exam
1. The nurse is caring for a client who is postoperative following a thyroidectomy. Which laboratory value should be monitored closely?
- A. Serum calcium of 8.5 mg/dL
- B. Serum sodium of 136 mEq/L
- C. Serum potassium of 3.0 mEq/L
- D. Serum chloride of 102 mEq/L
Correct answer: C
Rationale: A serum potassium level of 3.0 mEq/L should be monitored closely in a client who is postoperative following a thyroidectomy to detect any electrolyte imbalances. After a thyroidectomy, there is a risk of hypokalemia due to the effects of anesthesia, stress response, and the surgical procedure itself. Monitoring serum potassium levels is crucial as hypokalemia can lead to cardiac arrhythmias and muscle weakness. Serum calcium, sodium, and chloride levels are important but not the primary focus following a thyroidectomy, making them incorrect choices.
2. After placing a stethoscope as seen in the picture, the nurse auscultates S1 and S2 heart sounds. To determine if an S3 heart sound is present, what action should the nurse take first?
- A. Slide the stethoscope across the sternum.
- B. Move the stethoscope to the mitral site.
- C. Listen with the bell at the same location.
- D. Observe the cardiac telemetry monitor.
Correct answer: C
Rationale: The nurse uses the bell of the stethoscope to hear low-pitched sounds such as S3 and S4. To determine if an S3 heart sound is present, the nurse should listen at the same location using the bell first. This allows for the accurate identification of low-pitched sounds. Moving the stethoscope across the sternum (Choice A) or to the mitral site (Choice B) would not be the initial actions to assess for an S3 heart sound. Observing the cardiac telemetry monitor (Choice D) is not relevant for assessing S3 heart sounds, as it does not provide direct auscultation of heart sounds.
3. In a client with heart failure receiving digoxin (Lanoxin) and furosemide (Lasix), which laboratory value requires immediate intervention?
- A. Serum potassium of 4.0 mEq/L
- B. Blood glucose of 200 mg/dl
- C. Serum creatinine of 1.5 mg/dl
- D. Serum potassium of 3.2 mEq/L
Correct answer: D
Rationale: A serum potassium level of 3.2 mEq/L is low and concerning in a client receiving digoxin and furosemide. Hypokalemia increases the risk of digoxin toxicity, leading to life-threatening arrhythmias. Therefore, immediate intervention is necessary to prevent complications. The other options, serum potassium of 4.0 mEq/L, blood glucose of 200 mg/dl, and serum creatinine of 1.5 mg/dl, are within normal limits and do not pose immediate risks to the client in this scenario.
4. A client with a traumatic brain injury becomes progressively less responsive to stimuli. The client has a 'Do Not Resuscitate' prescription, and the nurse observes that the unlicensed assistive personnel (UAP) has stopped turning the client from side to side as previously scheduled. What action should the nurse take?
- A. Advise the UAP to resume positioning the client on schedule
- B. Notify the healthcare provider
- C. Document the UAP's actions
- D. Discuss the situation with the client’s family
Correct answer: A
Rationale: Continuing to turn the client is crucial to prevent complications such as pressure ulcers, even if the client is less responsive. Advising the UAP to resume positioning the client on schedule is the most appropriate action in this situation. This action ensures that the client's care needs are met and helps prevent potential complications. Notifying the healthcare provider or documenting the UAP's actions may delay the necessary care for the client. Discussing the situation with the client's family is important but addressing the immediate care need of turning the client takes priority.
5. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which laboratory value is most concerning?
- A. Serum sodium of 135 mEq/L
- B. Serum potassium of 4.0 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Serum glucose of 300 mg/dL
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.
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