HESI LPN
Fundamentals HESI
1. The healthcare provider prescribes furosemide (Lasix) 15 mg IV stat. On hand is Lasix 20 mg/2 ml. How many milliliters should the LPN/LVN administer?
- A. 1 ml.
- B. 1.5 ml.
- C. 1.75 ml.
- D. 2 ml.
Correct answer: B
Rationale: To calculate the correct dose of 15 mg, the LPN/LVN should administer 1.5 ml of Lasix (20 mg/2 ml). This calculation ensures precise dosing. Choice A (1 ml) is too low and would provide only 10 mg, while choice C (1.75 ml) and choice D (2 ml) would exceed the prescribed dose, resulting in potential adverse effects. It is important for the LPN/LVN to administer the exact prescribed dose to ensure therapeutic efficacy and avoid unnecessary complications.
2. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
3. During an assessment, a healthcare professional observes significant tenting of the skin over an older adult client's forearm. What factor should the healthcare professional primarily consider as a cause for this finding?
- A. Thin, parchment-like skin
- B. Loss of adipose tissue
- C. Dehydration
- D. Diminished skin elasticity
Correct answer: C
Rationale: Dehydration is the primary factor to consider in this scenario. Dehydration leads to decreased skin turgor and tenting, where the skin does not return to its normal position when pinched. While thin, parchment-like skin, loss of adipose tissue, and diminished skin elasticity can contribute to skin changes, they are not the primary cause of the significant tenting observed.
4. Which of the following findings contraindicate the use of haloperidol (Haldol) and warrant withholding the dose?
- A. Drowsiness, lethargy, and inactivity
- B. Dry mouth, nasal congestion, and blurred vision
- C. Rash, blood dyscrasias, severe depression
- D. Hyperglycemia, weight gain, and edema
Correct answer: C
Rationale: The correct answer is C: Rash, blood dyscrasias, and severe depression are serious side effects of haloperidol that necessitate withholding the dose and prompt further evaluation. Rash can indicate an allergic reaction, blood dyscrasias are serious blood disorders that can be life-threatening, and severe depression may worsen with haloperidol use. Choices A, B, and D are incorrect because drowsiness, lethargy, inactivity, dry mouth, nasal congestion, blurred vision, hyperglycemia, weight gain, and edema are common side effects of haloperidol that may not necessarily contraindicate its use but should be monitored and managed appropriately.
5. A healthcare professional is assessing a patient's skin. Which patient is most at risk for impaired skin integrity?
- A. A patient who is afebrile
- B. A patient who is diaphoretic
- C. A patient with strong pedal pulses
- D. A patient with adequate skin turgor
Correct answer: B
Rationale: Excessive moisture on the skin, as seen in a diaphoretic patient, can lead to impaired skin integrity. Diaphoresis softens epidermal cells, promotes bacterial growth, and can cause skin maceration. Afebrile status, strong pedal pulses, and adequate skin turgor are not directly associated with an increased risk of impaired skin integrity. Afebrile indicates the absence of fever, not a risk to skin integrity. Strong pedal pulses suggest good circulation, which is beneficial for skin health. Adequate skin turgor is a sign of good hydration and skin elasticity, indicating a lower risk of impaired skin integrity.
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