HESI LPN
CAT Exam Practice Test
1. When should the nurse conduct an Allen’s test?
- A. When obtaining pulmonary artery pressures
- B. To assess for the presence of a deep vein thrombus in the leg
- C. Just before arterial blood gases are drawn peripherally
- D. Prior to attempting a cardiac output calculation
Correct answer: C
Rationale: The correct time to conduct an Allen’s test is just before arterial blood gases are drawn peripherally. This test is performed to assess the adequacy of collateral circulation in the hand before obtaining arterial blood gases. Choice A is incorrect because an Allen’s test is not specifically done when obtaining pulmonary artery pressures. Choice B is incorrect because an Allen’s test is not used to assess deep vein thrombosis. Choice D is incorrect because an Allen’s test is not done specifically before attempting a cardiac output calculation.
2. A female client presents to the emergency department in the early evening complaining of abdominal cramping, watery diarrhea, and vomiting. She tells the nurse that she was at a picnic and ate barbecue that afternoon. What question is most important for the triage nurse to ask this client?
- A. Have you recently traveled outside the United States?
- B. How high was your temperature when you returned home?
- C. Have you taken any medication to treat these symptoms?
- D. Is anyone else sick who was also at the picnic?
Correct answer: D
Rationale: The most important question for the triage nurse to ask the client in this scenario is whether anyone else who attended the picnic is also sick. This is crucial to identify a potential outbreak or common source of infection. Asking about recent travel may be important for infectious diseases but is not as relevant as identifying a common source among individuals who shared the same food. Inquiring about the client's temperature is important but does not provide immediate insight into the cause of symptoms. Asking about medication taken is relevant but not as critical as determining if others are affected, which could indicate a foodborne illness.
3. An older adult male is admitted with complications related to chronic obstructive pulmonary disease (COPD). He reports progressive dyspnea that worsens on exertion, and his weakness has increased over the past month. The nurse notes that he has dependent edema in both lower legs. Based on these assessment findings, which dietary instruction should the nurse provide?
- A. Restrict daily fluid intake
- B. Eat meals at the same time daily
- C. Maintain a low-protein diet
- D. Limit the intake of high-calorie foods
Correct answer: A
Rationale: Dependent edema in both lower legs is a sign of fluid overload, which can exacerbate dyspnea in patients with COPD. Restricting daily fluid intake can help reduce the edema and alleviate breathing difficulties. A low-protein diet is not necessary unless there are specific renal concerns. Eating meals at the same time daily or limiting high-calorie foods is not directly associated with addressing fluid overload and dyspnea in COPD patients.
4. The parents of a 6-year-old child recently diagnosed with Duchenne muscular dystrophy tell the nurse that their child wants to continue attending swimming classes. How should the nurse respond?
- A. Encourage the parents to allow the child to continue attending swimming lessons with supervision
- B. Suggest that the child be encouraged to participate in a team sport to promote socialization
- C. Explain that their child is not mature enough to understand the risks associated with swimming
- D. Provide a list of alternative activities that are less likely to cause the child to experience fatigue
Correct answer: A
Rationale: Encouraging the parents to allow the child to continue attending swimming lessons with supervision is the most appropriate response. Swimming can be beneficial for the child, providing both exercise and enjoyment. Supervision can help manage any risks associated with swimming. Choice B is incorrect because the child's preference for swimming should be respected, and swimming can still offer socialization opportunities. Choice C is incorrect as it undermines the child's capability to understand the situation. Choice D is less appropriate as it does not address the child's interest in swimming and may limit beneficial physical activity.
5. While a patient is receiving beta-1b interferon every other day for multiple sclerosis, which serum laboratory test findings should the nurse monitor to assess for possible bone marrow suppression caused by the medication? (Select all that apply)
- A. Platelet count
- B. White blood cell count (WBC)
- C. Sodium and potassium
- D. Red blood cell count (RBC)
Correct answer: A
Rationale: Beta-1b interferon can lead to bone marrow suppression, impacting blood cell production. Therefore, monitoring the platelet count, white blood cell count (WBC), and red blood cell count (RBC) is essential. Platelet count is a direct indicator of bone marrow function and can show early signs of bone marrow suppression. While sodium, potassium, and albumin/protein levels are important for overall health assessment, they are not directly associated with bone marrow suppression caused by the medication.
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