HESI LPN
HESI Fundamental Practice Exam
1. A client with pneumonia has a decrease in oxygen saturation from 94% to 88% while ambulating. Based on these findings, which intervention should the LPN/LVN implement first?
- A. Assist the ambulating client back to the bed.
- B. Encourage the client to ambulate to resolve pneumonia.
- C. Obtain a prescription for portable oxygen while ambulating.
- D. Move the oximetry probe from the finger to the earlobe.
Correct answer: A
Rationale: The correct intervention is to assist the client back to bed. A decrease in oxygen saturation while ambulating indicates hypoxemia, and the immediate priority is to stabilize oxygen levels. Returning the client to bed allows for rest and decreased oxygen demand, potentially preventing further desaturation. Encouraging continued ambulation (Choice B) may worsen the hypoxemia by increasing oxygen demand. Obtaining portable oxygen (Choice C) is essential but should not delay addressing the low oxygen saturation. Moving the oximetry probe (Choice D) may not address the underlying cause of decreased oxygen saturation and should not be the first intervention.
2. The client is being instructed on how to collect a clean catch urine specimen. Which sequence is appropriate for teaching?
- A. Void a little, clean the meatus, then collect specimen
- B. Clean the meatus, begin voiding, then catch urine stream
- C. Clean the meatus, then urinate into container
- D. Void continuously and catch some of the urine
Correct answer: B
Rationale: The correct sequence for obtaining a clean catch urine specimen involves first cleaning the meatus to prevent contamination, then initiating voiding to catch the midstream urine. This method ensures that the sample is as uncontaminated as possible, making choice B the correct sequence. Option A is incorrect as cleaning the meatus should be done before voiding. Option C is incorrect as it does not involve catching a midstream urine sample. Option D is incorrect as it suggests catching urine throughout the entire voiding process, which may lead to contamination.
3. The healthcare professional is preparing to administer a tuberculin skin test. Which site is most appropriate for this injection?
- A. Deltoid muscle
- B. Vastus lateralis muscle
- C. Abdomen
- D. Inner forearm
Correct answer: D
Rationale: The inner forearm is the most appropriate site for administering a tuberculin skin test. This test requires an intradermal injection, which is administered just below the surface of the skin. The inner forearm provides a flat, easily accessible surface for this type of injection. Choices A, B, and C are incorrect because the tuberculin skin test should not be administered into a muscle (deltoid muscle or vastus lateralis muscle) or into the abdomen. The test requires precise placement within the dermal layer of the skin on the inner forearm to accurately assess for a reaction.
4. A nurse is preparing to administer an injection of an opioid medication to a client. The nurse draws out 1 mL of the medication from a 2 mL vial. Which of the following actions should the nurse take?
- A. Ask another nurse to observe the medication wastage
- B. Notify the pharmacy when wasting the medication
- C. Lock the remaining medication in the controlled substance cabinet
- D. Dispose of the vial with the remaining medication in a sharps container
Correct answer: A
Rationale: In medication wastage situations involving controlled substances, it is crucial to have a second nurse observe and verify the disposal process. This practice ensures accountability and prevents any mishandling or diversion of the medication. Choice B is incorrect because notifying the pharmacy is not the immediate action required in this scenario. Choice C is incorrect as locking the remaining medication in the controlled substance cabinet without proper witnessing does not ensure accountability. Choice D is incorrect as disposing of the vial with the remaining medication in a sharps container does not address the need for a witness to verify the wastage of the controlled substance.
5. A client with congestive heart failure (CHF) is receiving furosemide (Lasix). Which laboratory value should the LPN monitor closely while the client is taking this medication?
- A. Sodium
- B. Potassium
- C. Calcium
- D. Magnesium
Correct answer: B
Rationale: The LPN should monitor potassium levels closely while the client is taking furosemide (Lasix) due to the medication's potential to cause hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss through increased urine output. Hypokalemia can result in serious complications such as cardiac dysrhythmias. Monitoring sodium levels (choice A) is important but not as critical as monitoring potassium in this context. Calcium (choice C) and magnesium (choice D) levels are not typically affected by furosemide and are not the priority for monitoring in this scenario.
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