HESI LPN
HESI Fundamentals Exam
1. The healthcare provider is preparing a client with deep vein thrombosis (DVT) for a Venous Doppler evaluation. Which of the following would be necessary for preparing the client for this test?
- A. Client should be NPO prior to the test
- B. Client should receive a sedative medication before the test
- C. Discontinue anticoagulant therapy before the test
- D. No special preparation is necessary
Correct answer: D
Rationale: No special preparation is required for a Venous Doppler evaluation. Option A is incorrect because there is no need for the client to be NPO (nothing by mouth) before this test. Option B is incorrect as sedative medication is not typically administered for a Venous Doppler evaluation. Option C is incorrect as discontinuing anticoagulant therapy before the test may not be safe for a client with DVT, as it could increase the risk of developing a blood clot. Therefore, the correct answer is D.
2. A client has a new prescription for a metered-dose inhaler. Which of the following instructions should the nurse include?
- A. Inhale quickly and deeply while pressing down on the inhaler.
- B. Hold your breath for 10 seconds after inhaling the medication.
- C. Exhale immediately after inhaling the medication.
- D. Shake the inhaler before each use.
Correct answer: B
Rationale: The correct instruction for using a metered-dose inhaler is to hold your breath for 10 seconds after inhaling the medication. This allows the medication to be absorbed more effectively in the lungs. Inhaling quickly and deeply while pressing down on the inhaler (Choice A) may cause the medication to deposit in the mouth and throat rather than reaching the lungs. Exhaling immediately after inhaling the medication (Choice C) may also lead to medication wastage. Shaking the inhaler before each use (Choice D) is not necessary for all types of inhalers and can sometimes cause improper drug delivery.
3. The client is being taught about the use of syringes and needles for home administration of medications. Which action by the client indicates an understanding of standard precautions?
- A. Remove the needle after discarding used syringes
- B. Wear gloves while disposing of the needle and syringe
- C. Wear a face mask during medication administration
- D. Wash hands before handling the needle and syringe
Correct answer: D
Rationale: The correct answer is D. Washing hands before handling the needle and syringe is a critical step in infection control and adherence to standard precautions. Clean hands help prevent the transfer of microorganisms and reduce the risk of infection. Choices A, B, and C do not directly relate to standard precautions. Removing the needle after discarding used syringes (Choice A) can increase the risk of needlestick injuries. Wearing gloves while disposing of the needle and syringe (Choice B) is important for personal protection but does not specifically address standard precautions. Wearing a face mask during medication administration (Choice C) is not directly related to handling syringes and needles, which are more pertinent to standard precautions.
4. A healthcare professional is reviewing a client's fluid and electrolyte status. Which of the following findings should the healthcare professional report to the provider?
- A. BUN 15 mg/dL
- B. Creatinine 0.8 mg/dL
- C. Sodium 143 mEq/L
- D. Potassium 5.4 mEq/L
Correct answer: D
Rationale: The correct answer is D. A potassium level of 5.4 mEq/L is above the expected reference range, indicating hyperkalemia. Hyperkalemia can lead to serious complications such as dysrhythmias, making it important for the healthcare professional to report this finding to the provider for further evaluation and intervention. Choices A, B, and C fall within normal ranges and do not pose an immediate risk to the client's health, so they would not warrant immediate reporting to the provider. Elevated BUN or creatinine levels may indicate kidney dysfunction, while a sodium level of 143 mEq/L falls within the normal range for adults and does not typically require urgent intervention.
5. A client has extracellular fluid volume deficit. Which of the following findings should the nurse expect?
- A. Postural hypotension
- B. Distended neck veins
- C. Dependent edema
- D. Bradycardia
Correct answer: A
Rationale: Postural hypotension is a common sign of extracellular fluid volume deficit due to decreased blood volume, leading to a drop in blood pressure upon standing. Distended neck veins, dependent edema, and bradycardia are not typically associated with extracellular fluid volume deficit. Distended neck veins are more indicative of fluid volume overload, dependent edema is a sign of fluid retention, and bradycardia is not a common finding in extracellular fluid volume deficit.
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