HESI LPN
CAT Exam Practice
1. A 41-week gestation primigravida woman is admitted to labor and delivery for induction of labor. What finding should the nurse report to the healthcare provider before initiating the infusion of oxytocin?
- A. Fetal heart tones located in the upper right quadrant
- B. Biophysical profile results showing oligohydramnios
- C. Regular contractions occurring every 10 minutes
- D. Sterile vaginal exam revealing 3 cm dilation
Correct answer: B
Rationale: Oligohydramnios (low amniotic fluid) is a significant concern before starting oxytocin and should be reported to ensure safe labor induction. This finding can indicate potential fetal compromise and requires immediate evaluation. Fetal heart tones located in a specific quadrant, regular contractions, and cervical dilation are common assessments during labor but are not as critical as oligohydramnios in this scenario.
2. A young female adult wanders into the Emergency Department. She is disheveled and confused and states, 'My date must have put something in my drink. He took my car, and I think he raped me. I don't exactly remember, but I know he hurt me.' How should the nurse respond?
- A. Did you try to resist or fight back when you felt uncomfortable?
- B. He hurt you? Can you elaborate on what happened?
- C. It is okay to cry, but first, let's address your injuries and the situation.
- D. Yes, I can see. Tell me more about what you remember.
Correct answer: D
Rationale: The correct response is to encourage the patient to share more about what she remembers. This approach helps gather crucial information, supports the patient in a non-judgmental manner, and allows the nurse to provide appropriate care. Choice A has been revised to be more sensitive by asking about resistance when feeling uncomfortable rather than placing blame. Choice B has been adjusted to show empathy and request more details without questioning the patient's account. Choice C, although empathetic, does not address the immediate need to collect information and support the patient.
3. A child with heart failure (HF) is taking digitalis. Which sign indicates to the nurse that the child may be experiencing digitalis toxicity?
- A. Tachycardia
- B. Dyspnea
- C. Vomiting
- D. Muscle cramps
Correct answer: C
Rationale: Vomiting is a common sign of digitalis toxicity and should be closely monitored. While tachycardia is a common sign of heart failure, it is not typically associated with digitalis toxicity (Choice A). Dyspnea (Choice B) and muscle cramps (Choice D) are not specific signs of digitalis toxicity and can be present in other conditions. Therefore, the presence of vomiting should raise concerns about digitalis toxicity in the child with heart failure.
4. A heparin infusion is prescribed for a client who weighs 220 pounds. After administering a bolus dose of 80 units/kg, the nurse calculates the infusion rate for the heparin sodium at 18 units/kg/hour. The available solution is Heparin Sodium 25,000 units in 5% Dextrose Injection 250 ml. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: B
Rationale: To calculate the infusion rate, first, find the total dose required per hour, which is the patient's weight (220 pounds) multiplied by the prescribed rate (18 units/kg/hour). This equals 3960 units/hour. Next, determine how many ml of the solution contain 25,000 units; this is 250 ml. Divide the total dose required per hour (3960 units) by the units per ml (25,000 units/250 ml) to find how many ml are needed per hour. This results in 27 ml/hour. Therefore, the nurse should program the infusion pump to deliver 27 ml/hour. Choice A (18) is incorrect as it does not account for the concentration of the heparin solution. Choices C (36) and D (45) are incorrect as they do not reflect the accurate calculations based on the patient's weight and the heparin concentration in the solution.
5. An adult male is admitted to the intensive care unit because he experienced a sudden onset of sharp chest pain and shortness of breath earlier today. Following an emergent pulmonary angiogram, the client is diagnosed with a pulmonary embolism. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Monitor signs of increased bleeding
- B. Instruct on the use of incentive spirometry
- C. Observe for confusion and restlessness
- D. Administer intravenous opioids for severe pain
Correct answer: A
Rationale: In a patient diagnosed with a pulmonary embolism, the most critical intervention is to monitor for signs of increased bleeding. Pulmonary embolism treatment often involves anticoagulation therapy, which increases the risk of bleeding. Monitoring for signs of bleeding such as bruising, petechiae, hematuria, or gastrointestinal bleeding is essential to prevent complications. Instructing on the use of incentive spirometry can be beneficial for preventing pulmonary complications but is not as urgent as monitoring for bleeding. Observing for confusion and restlessness may indicate hypoxia but is not the most crucial intervention in this scenario. Administering intravenous opioids for severe pain might be necessary but is not the priority compared to monitoring for bleeding, which is directly related to the treatment for pulmonary embolism.
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