HESI LPN
Practice HESI Fundamentals Exam
1. A client with diabetes mellitus is being taught by a nurse about mixing regular and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should roll the NPH vial between my hands before drawing it up.
- B. I should draw up the NPH insulin before the regular insulin.
- C. I should inject air into the vial of regular insulin first.
- D. I should wait 10 minutes after mixing the insulin to inject it.
Correct answer: A
Rationale: The correct answer is A. Rolling the NPH vial between the hands before drawing it up ensures proper mixing of the insulin. Choice B is incorrect because regular insulin should be drawn up first to avoid contamination. Choice C is incorrect as injecting air into the vial of regular insulin is not necessary. Choice D is incorrect as there is no need to wait 10 minutes after mixing the insulin before injecting it.
2. A healthcare professional is reviewing a client’s medications. They include cimetidine and imipramine. Knowing that cimetidine decreases the metabolism of imipramine, the healthcare professional should identify that this combination is likely to result in which of the following effects?
- A. Decreased therapeutic effects of cimetidine
- B. Increased risk of imipramine toxicity
- C. Decreased risk of adverse effects of cimetidine
- D. Increased therapeutic effects of imipramine
Correct answer: B
Rationale: When cimetidine decreases the metabolism of imipramine, it leads to an increased concentration of imipramine in the body, which can result in imipramine toxicity. This increased risk of toxicity is the likely effect of this drug interaction. Choice A is incorrect because cimetidine's effect on imipramine metabolism does not impact the therapeutic effects of cimetidine. Choice C is incorrect because the interaction does not decrease the risk of adverse effects of cimetidine. Choice D is incorrect as the increased concentration of imipramine can lead to toxicity, not increased therapeutic effects.
3. A nurse on a medical-surgical unit is washing her hands prior to assisting with a surgical procedure. Which of the following actions by the nurse demonstrates proper surgical hand-washing techniques?
- A. The nurse washes with her hands held higher than her elbows.
- B. The nurse uses a brush to scrub under her nails.
- C. The nurse washes for at least 30 seconds.
- D. The nurse uses alcohol-based hand rub only.
Correct answer: A
Rationale: Proper surgical hand-washing technique involves keeping the hands higher than the elbows to prevent contamination. Washing with hands held lower than the elbows can lead to potential contamination. Using a brush to scrub under the nails is not recommended as it can cause microabrasions, increasing infection risk. While washing for at least 30 seconds is a good practice for thorough hand hygiene, hand positioning is critical during surgical hand-washing. Using alcohol-based hand rub alone is insufficient for surgical hand-washing as it may not effectively remove dirt, debris, and transient microorganisms.
4. The nurse is caring for a client with chronic obstructive pulmonary disease (COPD). Which instruction should the LPN/LVN reinforce to the client to help manage their condition?
- A. Increase fluid intake to thin secretions.
- B. Practice pursed-lip breathing to improve oxygenation.
- C. Avoid physical activity to prevent dyspnea.
- D. Use a peak flow meter to monitor lung function.
Correct answer: B
Rationale: Practicing pursed-lip breathing is an essential technique to help manage COPD as it can improve oxygenation by promoting better gas exchange. This technique helps to keep the airways open longer during exhalation, preventing air trapping and improving breathing efficiency. Increasing fluid intake can help thin secretions, which is beneficial, but it is not the primary instruction for managing COPD. Avoiding physical activity is not recommended as it can lead to deconditioning and worsen dyspnea in COPD patients. Using a peak flow meter is more commonly associated with monitoring asthma rather than COPD, so it is not the most relevant instruction for managing COPD.
5. A nurse at a provider’s office is discussing routine screenings with a 45-year-old female client who has no specific family history of cancer or diabetes mellitus. Which of the following client statements indicates that the client understands how to proceed?
- A. “So I don’t need the colon cancer screening for another 2 or 3 years.”
- B. “For now, I should continue to have a mammogram each year.”
- C. “Because the doctor just performed a Pap smear, I’ll return next year for another one.”
- D. “I had my glucose test last year, so I won’t need it again for 4 years.”
Correct answer: B
Rationale: The correct answer is B. Mammograms are recommended annually for women starting at age 40 or 45. This statement aligns with current guidelines for breast cancer screening in women without specific risk factors. Choice A is incorrect because colon cancer screenings are typically recommended at different intervals. Choice C is incorrect as Pap smears are usually done every 3-5 years based on age and risk factors. Choice D is incorrect because glucose testing is usually recommended more frequently, especially for individuals at risk for diabetes mellitus.
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