HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is reviewing a plan of care for a client who was admitted with dehydration as a result of prolonged watery diarrhea. Which prescription should the healthcare professional question?
- A. Oral psyllium (Metamucil)
- B. Oral potassium supplement
- C. Parenteral half normal saline
- D. Parenteral albumin (Albuminar)
Correct answer: D
Rationale: The correct answer is D, Parenteral albumin (Albuminar). Parenteral albumin is not typically indicated for dehydration resulting from diarrhea. In this case, fluid replacement therapy with intravenous fluids such as parenteral half normal saline would be more appropriate. Oral psyllium and oral potassium supplement are not the primary interventions for managing dehydration due to watery diarrhea. Oral psyllium is a fiber supplement used for constipation rather than diarrhea. Oral potassium supplements may be necessary if potassium levels are low due to dehydration, but the priority is fluid replacement. Therefore, choices A and B are less relevant in this scenario.
2. An assistive personnel (AP) is assisting a nurse with the care of a female client who has an indwelling urinary catheter. Which of the following actions by the AP indicates a need for further teaching?
- A. The AP hangs the collection bag below the level of the bladder.
- B. The AP performs hand hygiene before handling the catheter.
- C. The AP secures the catheter to the client’s leg with tape.
- D. The AP empties the collection bag when it is full.
Correct answer: A
Rationale: Hanging the collection bag below the level of the bladder is the correct technique for maintaining proper drainage and preventing backflow in a client with an indwelling urinary catheter. Therefore, choice A is the correct answer as it indicates a need for further teaching. Choices B, C, and D demonstrate appropriate actions in catheter care. Performing hand hygiene before handling the catheter helps prevent infection, securing the catheter to the client’s leg with tape prevents accidental dislodgement, and emptying the collection bag when it is full ensures that the catheter functions effectively.
3. A client has acute renal failure. Which of the following assessments provides the most accurate measure of the client's fluid status?
- A. Daily weight
- B. Intake and output
- C. Urine specific gravity
- D. Peripheral edema
Correct answer: A
Rationale: Daily weight is the most accurate measure of fluid status in a client with acute renal failure. Fluctuations in weight reflect changes in body fluid volume, including both fluid retention or loss. Intake and output, while important, may not always accurately reflect overall fluid status as it does not account for insensible losses. Urine specific gravity can provide information on urine concentration but does not offer a comprehensive assessment of overall fluid status. Peripheral edema, although a sign of fluid retention, is a more subjective assessment and may not always accurately reflect the client's fluid status like daily weight monitoring does.
4. A client in a provider’s office tells the nurse that, 'I fast for several days each week to help control my weight.' The client takes several medications for various chronic issues. The nurse should explain to the client that which of the following mechanisms that result from fasting puts her at risk for medication toxicity?
- A. Increasing the metabolism of the medications over time
- B. Increasing the protein-binding response
- C. Increasing medications’ transit time through the intestines
- D. Decreasing the excretion of medications
Correct answer: B
Rationale: Fasting can lead to an increased protein-binding response of medications. This can result in a higher concentration of bound medications in the bloodstream, potentially causing toxicity as the medications may not be readily available for metabolism or excretion. Choice A is incorrect because fasting typically doesn't increase medication metabolism. Choice C is incorrect as fasting usually decreases transit time through the intestines. Choice D is incorrect since fasting generally does not decrease medication excretion.
5. 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.
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