HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 2 diabetes is admitted with hyperglycemic hyperosmolar syndrome (HHS). Which laboratory value is most concerning?
- A. Serum glucose of 300 mg/dL
- B. Blood pressure of 140/90 mmHg
- C. Serum osmolarity of 320 mOsm/kg
- D. Serum pH of 7.30
Correct answer: C
Rationale: In a client with hyperglycemic hyperosmolar syndrome (HHS), a serum osmolarity of 320 mOsm/kg is the most concerning laboratory value. This high osmolarity indicates severe dehydration, which can lead to serious complications. Elevated serum glucose levels (choice A) are expected in HHS but do not directly reflect dehydration. Blood pressure (choice B) and serum pH (choice D) are important parameters to monitor but are not the most concerning values in HHS compared to serum osmolarity.
2. 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.
3. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with pneumonia. Which assessment finding is most concerning to the nurse?
- A. Oxygen saturation of 90%
- B. Respiratory rate of 24 breaths per minute
- C. Use of accessory muscles
- D. Inspiratory crackles
Correct answer: C
Rationale: The correct answer is C: 'Use of accessory muscles.' In a client with a history of COPD, the use of accessory muscles indicates increased work of breathing and may signal respiratory failure, necessitating immediate intervention. This finding is concerning as it suggests the client is struggling to breathe adequately. Oxygen saturation of 90% (choice A) is low but may be expected in COPD patients; it requires monitoring and intervention but is not as immediately concerning as the use of accessory muscles. A respiratory rate of 24 breaths per minute (choice B) is within a normal range and, although slightly elevated, may be a typical response to pneumonia. Inspiratory crackles (choice D) can be a common finding in pneumonia and are not as indicative of impending respiratory failure as the use of accessory muscles.
4. A client is admitted for cellulitis surrounding an insect bite on the lower right arm, and intravenous (IV) antibiotic therapy is prescribed. Which action should the nurse implement before performing venipuncture?
- A. Lower the right arm below the level of the heart.
- B. Elevate the right arm on a pillow.
- C. Apply a tourniquet above the insertion site.
- D. Apply a warm compress to the insertion site.
Correct answer: A
Rationale: Before performing venipuncture for IV therapy, the nurse should lower the right arm below the level of the heart. Lowering the arm helps dilate the veins, making it easier to locate and access a suitable vein for the procedure. Elevating the arm on a pillow, applying a tourniquet above the insertion site, or applying a warm compress to the insertion site are not appropriate actions before venipuncture as they can affect the venous blood flow and make the procedure more challenging.
5. The nurse is assessing a 1-year-old child with bronchiolitis caused by respiratory syncytial virus (RSV). Which assessment finding requires immediate intervention?
- A. Wheezing heard on expiration
- B. Oxygen saturation of 90%
- C. Respiratory rate of 40 breaths per minute
- D. Nasal flaring with sternal retractions
Correct answer: D
Rationale: Nasal flaring with sternal retractions indicates severe respiratory distress in a 1-year-old with bronchiolitis, requiring immediate intervention. Nasal flaring and sternal retractions are signs of increased work of breathing and decreased air movement, indicating the child is struggling to breathe. Wheezing on expiration (Choice A) is common in bronchiolitis but may not require immediate intervention. An oxygen saturation of 90% (Choice B) is low but may not be the most critical finding in this case. A respiratory rate of 40 breaths per minute (Choice C) is elevated but alone may not indicate the need for immediate intervention as much as nasal flaring and sternal retractions.
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