HESI LPN
Adult Health Exam 1 Chamberlain
1. A 9-year-old is receiving vancomycin 400 mg IV every 6 hours for a methicillin-resistant (Beta-lactam-resistant) Staphylococci aureus (MRSA) infection. The medication is diluted in a 100 mL bag of saline with instructions to infuse over one and a half hours. How many mL/hour should the nurse program the infusion pump?
- A. 50
- B. 67
- C. 57
- D. 70
Correct answer: B
Rationale: To calculate the infusion rate for vancomycin, you need to divide the total volume by the total time of infusion. In this case, the total volume is 100 mL, and the total time is 1.5 hours. Therefore, 100 mL รท 1.5 hours = 67 mL/hour. This means the nurse should program the infusion pump to deliver vancomycin at a rate of 67 mL/hour. Choice A (50) is incorrect as it does not reflect the correct calculation. Choice C (57) is incorrect as it is not the accurate calculation based on the provided information. Choice D (70) is incorrect as it does not correspond to the correct infusion rate calculation.
2. A client is admitted with diabetic ketoacidosis. What is the most critical treatment to initiate?
- A. Administer sodium bicarbonate IV
- B. Start an insulin drip
- C. Monitor glucose and ketone levels
- D. Provide oral hydration
Correct answer: B
Rationale: In the case of diabetic ketoacidosis, the most critical treatment to initiate is starting an insulin drip. Insulin therapy is crucial for reducing blood glucose levels by promoting glucose uptake in cells and inhibiting the production of ketones. Administering sodium bicarbonate IV is generally not recommended as it may lower the pH further and potentially worsen the condition. While monitoring glucose and ketone levels is important for assessing the response to treatment, initiating insulin therapy takes precedence. Providing oral hydration alone is insufficient to manage the metabolic derangements seen in diabetic ketoacidosis.
3. A client with type 1 diabetes mellitus is learning to administer insulin. What is the best site for the nurse to recommend for insulin injection?
- A. Abdomen
- B. Thigh
- C. Upper arm
- D. Buttock
Correct answer: A
Rationale: The correct answer is the abdomen. The abdomen is the recommended site for insulin injection due to its faster absorption rate compared to other sites. Insulin injected into the abdomen is absorbed more quickly, leading to better glycemic control. The thigh and upper arm are also common sites for insulin injection, but they have slower absorption rates than the abdomen. The buttock is not a preferred site for insulin injection due to inconsistent absorption and potential risk of injecting into muscle instead of fatty tissue.
4. A client with a diagnosis of depression is prescribed an SSRI. What is the most important information the nurse should provide?
- A. Take the medication as prescribed.
- B. Avoid consuming grapefruit juice.
- C. Report any thoughts of self-harm immediately.
- D. Understand that improvement may take weeks.
Correct answer: C
Rationale: The most important information the nurse should provide to a client prescribed an SSRI for depression is to report any thoughts of self-harm immediately. SSRIs can increase suicidal ideation, especially at the beginning of treatment, so it is crucial to monitor for this and take appropriate actions. While it is important to take the medication as prescribed (Choice A), the immediate need for reporting self-harm ideation takes precedence. Avoiding grapefruit juice (Choice B) is a general precaution with certain medications but not as critical in this scenario. Understanding that improvement may take weeks (Choice D) is important for managing treatment expectations, but ensuring the client's safety in the context of suicidal ideation is the top priority.
5. A client with a urinary tract infection is prescribed antibiotics. What should the nurse inform the client about antibiotic therapy?
- A. It may interfere with oral contraceptive effectiveness
- B. It can cause drowsiness
- C. It should be taken with meals
- D. Completing the full course is crucial
Correct answer: D
Rationale: Completing the full course of antibiotics is crucial to fully eradicate the infection and prevent the development of antibiotic resistance. Informing the client about the importance of finishing the prescribed course helps in ensuring the effectiveness of the treatment and reduces the risk of recurrence. Choice A is incorrect because antibiotics do not generally interfere with oral contraceptive effectiveness. Choice B is incorrect because drowsiness is not a common side effect of antibiotics. Choice C is incorrect because while some antibiotics may need to be taken with meals, it is not a universal rule for all antibiotics.
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