HESI LPN
HESI Practice Test for Fundamentals
1. A healthcare professional is preparing to admit a client suspected of having pulmonary tuberculosis. Which of the following actions should the healthcare professional plan to perform first?
- A. Implement airborne precautions.
- B. Obtain a sputum culture.
- C. Administer antituberculosis medications.
- D. Recommend a screening test for close contacts.
Correct answer: A
Rationale: The initial priority when admitting a client suspected of having pulmonary tuberculosis is to implement airborne precautions to prevent the spread of the disease. Airborne precautions include wearing a mask and placing the client in a negative pressure room. Obtaining a sputum culture is essential for confirming the diagnosis, but ensuring infection control measures come first to protect others. Administering antituberculosis medications is important but should be initiated after implementing necessary precautions. Recommending a screening test for close contacts is relevant but is a secondary concern compared to immediate infection control measures.
2. 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.
3. A client is receiving morphine via PCA infusion device after abdominal surgery. Which of the following statements indicates that the client knows how to use the device?
- A. I'll wait to use the device until it's absolutely necessary.
- B. I'll be careful about pushing the button too much to avoid an overdose.
- C. I should tell the nurse if the pain doesn't stop while I am using this device.
- D. I will ask my adult child to push the dose button when I am sleeping.
Correct answer: C
Rationale: Choice C is the correct answer because it demonstrates that the client understands the importance of communicating with the nurse if the pain persists while using the PCA device. This is crucial as it ensures proper pain management and monitoring. Choices A and B are incorrect because delaying the use of the device until necessary or being cautious about pushing the button too much do not necessarily reflect understanding of using the PCA device effectively. Choice D is incorrect as having someone else, like an adult child, push the dose button goes against the principle of the client self-administering the medication through the PCA device.
4. The LPN/LVN observes that a male client has removed the covering from an ice pack applied to his knee. What action should the nurse take first?
- A. Observe the appearance of the skin under the ice pack.
- B. Instruct the client regarding the importance of the covering.
- C. Reapply the covering after filling it with fresh ice.
- D. Ask the client how long the ice pack was applied to the skin.
Correct answer: A
Rationale: The correct first action for the nurse to take when a client removes the covering from an ice pack is to observe the appearance of the skin under the ice pack. This assessment is crucial to check for any skin damage or adverse reactions resulting from direct contact with the ice pack. Instructing the client about the importance of the covering (Choice B) can follow the skin assessment. Reapplying the covering (Choice C) before skin assessment may potentially cause harm. Asking the client about the duration of ice application (Choice D) is not the immediate priority; ensuring skin integrity is the primary concern.
5. A nurse at a screening clinic is assessing a client who reports a history of a heart murmur related to aortic valve stenosis. At which of the following anatomical areas should the nurse place the stethoscope to auscultate the aortic valve?
- A. Second intercostal space to the right of the sternum
- B. Fifth intercostal space at the midclavicular line
- C. Left sternal border
- D. Fifth intercostal space at the anterior axillary line
Correct answer: B
Rationale: The correct placement to auscultate the aortic valve is at the second intercostal space to the right of the sternum, which coincides with the aortic area. The choice stating 'Fifth intercostal space at the midclavicular line' is the correct answer for auscultating the aortic valve. Placing the stethoscope at the left sternal border would be more suitable for listening to the tricuspid valve. The fifth intercostal space at the anterior axillary line is the recommended area for auscultating the mitral valve. Therefore, choice B is the correct answer for assessing the aortic valve in a client with a history of a heart murmur related to aortic valve stenosis.
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