HESI RN
HESI RN CAT Exit Exam
1. The nurse is caring for a client who is receiving a continuous intravenous infusion of heparin. Which laboratory value should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Partial thromboplastin time (PTT)
- D. Hemoglobin level
Correct answer: C
Rationale: The correct answer is C. Partial thromboplastin time (PTT) is the laboratory value that should be monitored to evaluate the effectiveness of heparin therapy. PTT reflects the intrinsic pathway of coagulation and is specifically sensitive to heparin's anticoagulant effects. Monitoring the PTT helps ensure that the client is within the therapeutic range to prevent clot formation without increasing the risk of bleeding. Choices A, B, and D are incorrect because while they are important laboratory values in other contexts, they are not specifically used to monitor the effectiveness of heparin therapy.
2. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who has a respiratory rate of 32 breaths/min and a heart rate of 110 beats/min. What action should the nurse take first?
- A. Administer a bronchodilator
- B. Encourage deep breathing and coughing
- C. Assess the client's oxygen saturation level
- D. Obtain an arterial blood gas
Correct answer: C
Rationale: The correct action for the nurse to take first is to assess the client's oxygen saturation level. In a client with COPD and abnormal respiratory and heart rates, determining the oxygen saturation helps evaluate the adequacy of oxygen exchange and the severity of respiratory distress. Administering a bronchodilator (choice A) can be appropriate but assessing oxygen saturation takes priority. Encouraging deep breathing and coughing (choice B) may not address the immediate need for oxygenation assessment. Obtaining an arterial blood gas (choice D) is important but typically follows the initial assessment of oxygen saturation.
3. When preparing an educational program for adolescents about the risks of multiple sexual partners, which information is most important to include?
- A. Condoms provide reliable protection against sexually transmitted infections.
- B. Having multiple sexual partners increases the risk of contracting sexually transmitted infections.
- C. The use of oral contraceptives can reduce the risk of sexually transmitted infections.
- D. Having multiple sexual partners increases the risk of developing cancer.
Correct answer: B
Rationale: The correct answer is B because having multiple sexual partners significantly increases the risk of contracting sexually transmitted infections (STIs). This information is crucial for adolescents to understand the potential consequences of engaging in risky sexual behaviors. Choice A is incorrect because while condoms are important for protection, they are not 100% effective. Choice C is incorrect as oral contraceptives do not protect against STIs. Choice D is incorrect as the immediate concern for adolescents in this context is the risk of STIs rather than cancer.
4. The nurse is assessing on the first postoperative day following thyroid surgery. Which laboratory value is most important for the nurse to monitor?
- A. Calcium
- B. Sodium
- C. Chloride
- D. Potassium
Correct answer: A
Rationale: Corrected Rationale: Monitoring calcium levels is crucial post-thyroid surgery to detect hypocalcemia, a common complication due to injury or removal of the parathyroid glands. Monitoring sodium, chloride, or potassium levels is not as vital in the immediate post-thyroid surgery period.
5. When caring for a laboring client whose contractions are occurring every 2-3 minutes, the nurse should document that the pump is infusing how many ml/hour?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: The correct calculation for infusion based on the given data is 5 ml/hr. To calculate the infusion rate per hour, you need to determine the number of contractions per hour. If contractions are occurring every 2-3 minutes, this would mean approximately 20-30 contractions per hour. Therefore, if the pump is infusing 5 ml per contraction, the total infusion rate per hour would be 5 ml x 20 contractions = 100 ml/hr. This makes choice A the correct answer. Choices B, C, and D are incorrect as they do not align with the calculation based on the given data.
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