HESI RN
HESI RN CAT Exit Exam
1. Oxygen at liters/min per nasal cannula PRN difficult breathing is prescribed for a client with pneumonia. Which nursing intervention is effective in preventing oxygen toxicity?
- A. Avoiding the administration of high levels of oxygen for extended periods.
- B. Administering a sedative at bedtime to slow the client's respiratory rate.
- C. Removing the nasal cannula during the night to prevent oxygen buildup.
- D. Running oxygen through a hydration source prior to administration.
Correct answer: A
Rationale: The correct answer is A: Avoiding the administration of high levels of oxygen for extended periods. Oxygen toxicity can occur when high levels of oxygen are given for a prolonged period. It is important to monitor and adjust the oxygen levels as needed to prevent toxicity. Choice B is incorrect because administering a sedative to slow the respiratory rate does not directly prevent oxygen toxicity. Choice C is incorrect as removing the nasal cannula during the night can compromise the client's oxygenation. Choice D is incorrect as running oxygen through a hydration source does not prevent oxygen toxicity; instead, it may introduce risks associated with the hydration source.
2. A male client tells the nurse, 'I am so stressed because I am expected to achieve excellence in everything. My job, my marriage, and my children must be perfect!' Which coping response should the nurse recognize that the client is using?
- A. Repression
- B. Sublimation
- C. Rationalization
- D. Displacement
Correct answer: C
Rationale: The correct answer is C: Rationalization. Rationalization is a defense mechanism where the client justifies their stress and need for perfection by creating logical explanations or excuses. In this case, the client is rationalizing their stress by believing that everything in their life must be perfect. Repression (choice A) involves unconsciously blocking out thoughts or feelings. Sublimation (choice B) is redirecting unacceptable impulses into socially acceptable activities. Displacement (choice D) involves transferring emotions from one target to another.
3. The nurse is assessing a client who has a prescription for digoxin (Lanoxin). Which finding indicates that the client is at risk for digoxin toxicity?
- A. Heart rate of 60 beats per minute
- B. Blood pressure of 120/80 mm Hg
- C. Respiratory rate of 18 breaths per minute
- D. Serum potassium level of 3.0 mEq/L
Correct answer: D
Rationale: A low serum potassium level increases the risk of digoxin toxicity. Digoxin toxicity is more likely to occur in individuals with low potassium levels because potassium is crucial for proper heart function. A heart rate of 60 beats per minute, blood pressure of 120/80 mm Hg, and respiratory rate of 18 breaths per minute are within normal ranges and do not directly indicate an increased risk of digoxin toxicity.
4. The nurse is preparing to administer the 0800 dose of 20 units of Humulin R to an 8-year-old girl diagnosed with Type 1 diabetes. The mother comments that her daughter is a very picky eater and many times does not eat meals. Which intervention should the nurse implement first?
- A. Administer the 20 Units of Humulin R subcutaneously as prescribed
- B. Ask the girl if she will be eating her breakfast this morning
- C. Discuss changing the insulin prescription to Lispro with the healthcare provider
- D. Explain to the mother the importance of eating the scheduled meals
Correct answer: B
Rationale: The correct answer is to ask the girl if she will be eating her breakfast this morning. This is important to determine if the child will be consuming food, which is crucial information before administering insulin. If the child does not plan to eat, administering the full dose of insulin may lead to hypoglycemia. Choice A is incorrect as administering the insulin without knowing if the child will eat can be dangerous. Choice C is not the first intervention because the immediate concern is the child's meal intake. Choice D, while important, is not the first step in this situation.
5. The nurse is caring for a client with a diagnosis of pneumonia who has been febrile for 24 hours. Which data is most important for the nurse to obtain in determining the client's fluid status?
- A. Daily intake and output
- B. Skin turgor
- C. Daily weight
- D. Vital signs every 4 hours
Correct answer: C
Rationale: Daily weight is the most important data for the nurse to obtain in determining the client's fluid status in this scenario. During febrile episodes, assessing daily weight is crucial as it can indicate fluid retention or loss. While monitoring intake and output is important for assessing fluid balance, daily weight provides a more comprehensive picture of fluid status over time. Skin turgor is more indicative of hydration status than overall fluid status, and vital signs, although essential, do not directly assess fluid status as effectively as daily weight.
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