HESI LPN
Practice HESI Fundamentals Exam
1. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
2. A client who requires maximal support is being taught how to use a two-wheeled walker by a nurse. Which of the following actions by the client indicates an understanding of the teaching?
- A. The client moves the walker ahead 25.4 cm with each step
- B. The client picks up the walker with each step
- C. The client stands with elbows slightly bent while holding the walker
- D. The client stoops slightly forward when moving the walker
Correct answer: C
Rationale: The correct answer is C. When using a two-wheeled walker, the client should stand with elbows slightly bent to maintain balance and stability. This position helps distribute weight effectively and promotes proper use of the walker. Choices A, B, and D are incorrect. Choice A does not demonstrate proper posture while using the walker. Choice B of picking up the walker with each step is not the correct technique and can lead to instability. Choice D of stooping slightly forward is also incorrect as it can affect balance and posture negatively.
3. When planning to insert a peripheral IV catheter for an older adult client, which of the following actions should the nurse plan to take?
- A. Insert the catheter at a 45° angle
- B. Place the client's arm in a dependent position
- C. Shave excess hair from the insertion site
- D. Initiate IV therapy in the veins of the hand
Correct answer: B
Rationale: Placing the client's arm in a dependent position is the correct action when inserting a peripheral IV catheter for an older adult client. This position helps veins dilate due to gravity, facilitating easier insertion of the IV catheter. Choice A is incorrect because catheters are typically inserted at a lower angle, around 10-30 degrees. Choice C is unnecessary unless excessive hair impedes the insertion process. Choice D is incorrect as veins in the hand are generally smaller and more prone to complications, making them less ideal for IV therapy in older adults.
4. A nurse in a provider's office is obtaining the health and medication history of a client who has a respiratory infection. The client tells the nurse that she is not aware of any allergies, but that she did develop a rash the last time she was taking an antibiotic. Which of the following information should the nurse give the client?
- A. "Rashes are very common, especially if you have dry skin. Did it go away on its own?"
- B. "Virtually all medications have adverse effects. It sounds like this could have been an adverse effect of the antibiotic."
- C. "It's unlikely that your doctor will prescribe an antibiotic for what seems to be a minor viral infection, so we shouldn't be concerned about that rash."
- D. "We need to document the exact medication you were taking because you might be allergic to it."
Correct answer: D
Rationale: The correct answer is D. If a client reports developing a rash when taking a specific medication, even if they are not aware of any allergies, it is crucial to document this information. This is necessary to prevent future allergic reactions. Identifying the exact medication that caused the rash is essential as the client could have an allergy to it. Providing this information allows healthcare providers to avoid prescribing the same medication again, which could potentially lead to more severe allergic reactions or life-threatening situations. Choices A, B, and C are incorrect because they do not address the importance of documenting the specific medication that caused the adverse reaction or the potential risks of repeating the medication. Simply attributing the rash to common occurrences, adverse effects of medications in general, or assuming the rash is insignificant in the current context can overlook the critical aspect of identifying and avoiding allergens.
5. During a neurological assessment, a healthcare provider is evaluating a client's balance. Which of the following examinations should the provider use for this purpose?
- A. Romberg test
- B. Deep tendon reflexes
- C. Mini-Mental State Examination
- D. Babinski reflex
Correct answer: A
Rationale: The Romberg test is utilized to assess the client's balance and proprioception by having them stand with their eyes closed. This test helps evaluate sensory ataxia, a condition where an individual's balance is affected due to impaired sensory input. Deep tendon reflexes (Choice B) are assessed by tapping a tendon with a reflex hammer to evaluate the integrity of the spinal cord and peripheral nerves; this is not directly related to balance assessment. The Mini-Mental State Examination (Choice C) is a cognitive screening tool used to assess cognitive impairment or dementia, not balance. The Babinski reflex (Choice D) is elicited by stroking the sole of the foot to assess neurologic function, particularly in the corticospinal tract, and is not specific to balance evaluation.
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