HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is preparing to assess a patient for orthostatic hypotension. Which piece of equipment will the professional obtain to assess for this condition?
- A. Thermometer
- B. Elastic stockings
- C. Blood pressure cuff
- D. Sequential compression devices
Correct answer: C
Rationale: To assess for orthostatic hypotension, a healthcare professional needs to obtain a blood pressure cuff. Orthostatic hypotension is defined as a drop in blood pressure greater than 20 mm Hg in systolic pressure or 10 mm Hg in diastolic pressure when moving from lying down to a standing position. A thermometer (Choice A) is used to measure body temperature and is not directly related to assessing orthostatic hypotension. Elastic stockings (Choice B) are used for preventing deep vein thrombosis and improving circulation in the lower extremities, not for assessing orthostatic hypotension. Sequential compression devices (Choice D) are mechanical pumps that are used to prevent deep vein thrombosis and are not specifically used for assessing orthostatic hypotension.
2. A client has been admitted to the Coronary Care Unit with a myocardial infarction. Which nursing diagnosis should have priority?
- A. Pain related to ischemia
- B. Risk for altered elimination: constipation
- C. Risk for complication: dysrhythmias
- D. Anxiety related to pain
Correct answer: A
Rationale: The correct answer is A: Pain related to ischemia. This nursing diagnosis should have priority because addressing the pain caused by ischemia is crucial in managing the client's myocardial infarction. Pain management is essential not only for the client's comfort but also for improving outcomes and reducing complications. Choices B, C, and D are not the priority in this scenario. Risk for altered elimination: constipation (Choice B) is not as immediate a concern as managing the client's pain. Risk for complication: dysrhythmias (Choice C) may be a potential concern but addressing the client's pain takes precedence. Anxiety related to pain (Choice D) is important to address but should come after managing the pain itself.
3. A client with a history of falls is under the care of a nurse. Which of the following actions should the nurse take to prevent falls?
- A. Keep the client's bed in the lowest position.
- B. Encourage the client to wear non-slip socks.
- C. Place a fall risk sign on the client's door.
- D. Use a gait belt when ambulating the client.
Correct answer: A
Rationale: Keeping the client's bed in the lowest position is an essential measure to prevent falls. Lowering the bed reduces the risk of injury if the client falls out of bed by decreasing the distance of the fall. Encouraging the client to wear non-slip socks (Choice B) may help prevent slips on smooth surfaces but does not address the risk of falls in other scenarios. Placing a fall risk sign on the client's door (Choice C) alone does not actively prevent falls but serves as a warning. Using a gait belt when ambulating the client (Choice D) is important for assisting with mobility but does not directly address fall prevention in the client's environment.
4. In planning care for a client with a surgical wound healing by secondary intention, the nurse can anticipate that the client will:
- A. Be at an increased susceptibility for infection
- B. Have a wound that heals more slowly
- C. Experience more pain during the healing process
- D. Require more frequent dressing changes
Correct answer: A
Rationale: Wounds healing by secondary intention involve the gradual filling of the wound with granulation tissue, leading to a higher risk of infection due to prolonged exposure. This makes choice A the correct answer. Choices B and C are incorrect because wounds healing by secondary intention take longer to heal and often result in more pain compared to wounds healing by primary intention. Choice D is also incorrect as wounds healing by secondary intention usually require more frequent dressing changes to prevent infection and promote healing.
5. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?
- A. pH below 7.3
- B. Potassium of 5.0
- C. HCT of 60
- D. PaO2 of 79%
Correct answer: C
Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.
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