HESI LPN
HESI Practice Test for Fundamentals
1. A nurse is preparing to check a client's blood pressure. Which of the following actions should the nurse take?
- A. Apply the cuff above the client's antecubital fossa.
- B. Use a cuff with a width that is about 60% of the client's arm circumference.
- C. Have the client sit with their arm resting at the level of their heart.
- D. Release the pressure on the client's arm at a rate of 5 to 6 mm per second.
Correct answer: A
Rationale: The correct action when checking a client's blood pressure is to apply the cuff above the client's antecubital fossa. Placing the cuff above this area allows for an accurate measurement of blood pressure. Choice B is incorrect because the cuff width should be approximately 40% of the arm circumference, not 60%. Choice C is incorrect as the client's arm should rest at heart level, not above it, to ensure an accurate reading. Choice D is incorrect as the pressure on the client's arm should be released at a rate of 2 to 3 mm per second, not 5 to 6 mm per second.
2. A client with diabetes mellitus is being taught by a nurse about mixing regular and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should roll the NPH vial between my hands before drawing it up.
- B. I should draw up the NPH insulin before the regular insulin.
- C. I should inject air into the vial of regular insulin first.
- D. I should wait 10 minutes after mixing the insulin to inject it.
Correct answer: A
Rationale: The correct answer is A. Rolling the NPH vial between the hands before drawing it up ensures proper mixing of the insulin. Choice B is incorrect because regular insulin should be drawn up first to avoid contamination. Choice C is incorrect as injecting air into the vial of regular insulin is not necessary. Choice D is incorrect as there is no need to wait 10 minutes after mixing the insulin before injecting it.
3. The healthcare provider is caring for a client with a suspected deep vein thrombosis (DVT). Which assessment finding should the healthcare provider report to the healthcare provider?
- A. Swelling and redness in the affected leg
- B. Pain in the affected leg
- C. Warmth and tenderness in the affected leg
- D. A positive Homans' sign
Correct answer: D
Rationale: A positive Homans' sign is a classic sign associated with deep vein thrombosis (DVT) and indicates the presence of a blood clot. This finding is crucial to report to the healthcare provider promptly for further evaluation and treatment. Swelling, redness, pain, warmth, and tenderness in the affected leg are common signs of DVT, but a positive Homans' sign specifically points towards a potential blood clot, making it the priority finding to be reported. Reporting other symptoms may also be important, but a positive Homans' sign is more specific to DVT and requires immediate attention.
4. In planning care for a premature infant with respiratory distress syndrome, nursing actions are based on the fact that the most likely cause of this problem stems from the infant's inability to
- A. Stabilize alveolar surface tension
- B. Maintain alveolar surface tension
- C. Promote normal pulmonary blood flow
- D. Regulate intra-cardiac pressure
Correct answer: B
Rationale: The correct answer is B: Maintain alveolar surface tension. Respiratory distress syndrome in premature infants is often caused by a deficiency in surfactant, a substance that helps maintain alveolar surface tension. Without adequate surfactant, the alveoli collapse, making it difficult for the infant to oxygenate effectively. Choices A, C, and D are incorrect because stabilizing alveolar surface tension is not the issue, promoting normal pulmonary blood flow and regulating intra-cardiac pressure are not directly related to the pathophysiology of respiratory distress syndrome in premature infants.
5. A client with a history of peptic ulcer disease reports black, tarry stools. What is the most appropriate action for the LPN/LVN to take?
- A. Reassure the client that this is not a normal finding.
- B. Notify the healthcare provider immediately.
- C. Document the finding in the client’s chart.
- D. Encourage the client to seek medical attention.
Correct answer: B
Rationale: The correct answer is B: Notify the healthcare provider immediately. Black, tarry stools can be indicative of gastrointestinal bleeding, a serious complication that requires urgent medical evaluation and intervention. This finding should not be dismissed or considered normal without further assessment. Option A is incorrect because black, tarry stools are not a normal finding and may signify a significant health issue. Option C is incorrect as immediate action is needed rather than just documenting the finding. Option D is not the best choice as it simply suggests seeking medical attention without emphasizing the urgency of the situation. Prompt notification of the healthcare provider is crucial to ensure timely intervention and management of potential gastrointestinal bleeding.
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