HESI LPN
Community Health HESI Study Guide
1. In reviewing the assessment data of a client suspected of having diabetes insipidus, the nurse expects which of the following after a water deprivation test?
- A. Increased edema and weight gain
- B. Unchanged urine specific gravity
- C. Rapid protein excretion
- D. Decreased blood potassium
Correct answer: B
Rationale: After a water deprivation test in a client suspected of having diabetes insipidus, the nurse would expect the urine specific gravity to remain unchanged. This occurs because in diabetes insipidus, the kidneys are unable to concentrate urine, leading to a low urine specific gravity even after water deprivation. Choices A, C, and D are incorrect. Increased edema and weight gain are not typical findings in diabetes insipidus. Rapid protein excretion is not directly related to the condition, and decreased blood potassium is not a common outcome of a water deprivation test for diabetes insipidus.
2. A client is scheduled to have a blood test for cholesterol and triglycerides the next day. The nurse would tell the client
- A. ''Be sure to eat a fat-free diet until the test.''
- B. ''Do not eat or drink anything but water for 12 hours before the blood test.''
- C. ''Have the blood drawn within 2 hours of eating breakfast.''
- D. ''Stay at the laboratory so 2 blood samples can be drawn an hour apart.''
Correct answer: B
Rationale: Fasting for at least 12 hours is necessary before a cholesterol and triglyceride test to ensure accurate results by avoiding fluctuations that can occur after eating. Choice A is incorrect because a fat-free diet is not required; fasting is. Choice C is incorrect as it suggests having the test right after eating, which can affect the results. Choice D is incorrect as there is no need to stay at the laboratory for 2 blood samples unless specifically instructed by a healthcare provider.
3. An infant has just returned from surgery for placement of a gastrostomy tube as an initial treatment for tracheoesophageal fistula. The mother asks, 'When can the tube be used for feeding?' The nurse's best response would be which of these comments?
- A. "Feedings can begin in 5 to 7 days."
- B. "The use of the feeding tube can begin immediately."
- C. "The stomach contents and air must be drained first."
- D. "The incision healing must be complete before feeding."
Correct answer: C
Rationale: The correct answer is C: 'The stomach contents and air must be drained first.' Before starting feedings through a gastrostomy tube, it is essential to drain the stomach contents and air. This process helps prevent complications and ensures the proper functioning of the tube after placement. Choice A is incorrect because initiating feedings within 5 to 7 days may lead to complications if the stomach is not adequately prepared. Choice B is incorrect as feeding should not begin immediately to allow for proper preparation of the tube and the stomach. Choice D is incorrect because although incision healing is important, draining the stomach contents and air is a more immediate concern to prevent complications.
4. The nurse is teaching a group of older adults about medication safety. Which of the following should be included in the teaching?
- A. keeping a list of all medications and dosages
- B. sharing medications with family members if they have the same prescription
- C. stopping medications when symptoms improve
- D. doubling up on missed doses
Correct answer: A
Rationale: The correct answer is A: keeping a list of all medications and dosages. Maintaining a comprehensive list of medications and their dosages is essential for older adults to prevent medication errors and dangerous interactions. Choice B is incorrect because sharing medications, even if family members have the same prescription, can lead to unintended adverse effects or inappropriate dosages. Choice C is incorrect as stopping medications when symptoms improve can be harmful if the full course of treatment is not completed. Choice D is incorrect as doubling up on missed doses can result in overdosing and adverse reactions.
5. The RN is making a home visit to a female client with end-stage heart disease. She has a living will and states she will never go back to the hospital. During the visit, the RN notes that the client is pale and SOB while speaking. The RN discovers 3+ edema in both ankles and bilateral pulmonary crackles. Which intervention should the RN implement first?
- A. Order a chest X-ray
- B. Obtain a peripheral O2 saturation reading
- C. Obtain an order for complete blood count
- D. Tell the patient to stay in bed
Correct answer: B
Rationale: Obtaining a peripheral O2 saturation reading is the priority intervention in this scenario. It helps assess the client's oxygenation status quickly, which is crucial in a client with signs of respiratory distress, such as shortness of breath and bilateral pulmonary crackles. Ordering a chest X-ray (Choice A) may be necessary later but does not address the immediate need for oxygen assessment. Obtaining an order for a complete blood count (Choice C) is not the priority in this situation as it does not directly address the client's respiratory distress. Instructing the patient to stay in bed (Choice D) does not address the underlying issue of potential hypoxia and respiratory compromise.
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