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. The provider orders Lanoxin (digoxin) 0.125 mg PO and furosemide 40 mg every day. Which of these foods would the nurse reinforce for the client to eat at least daily?
- A. Spaghetti
- B. Watermelon
- C. Chicken
- D. Tomatoes
Correct answer: B
Rationale: The correct answer is 'Watermelon.' Watermelon is high in potassium, which is important to counteract the potassium loss caused by furosemide. Furosemide is a loop diuretic that can lead to potassium depletion, so consuming potassium-rich foods like watermelon can help maintain electrolyte balance. Choices A, C, and D do not specifically address the need for potassium in this scenario and are not as beneficial for addressing the potential electrolyte imbalance caused by furosemide.
3. When reviewing a client’s fluid and electrolyte status, what should the nurse report to the provider?
- A. Potassium 5.4
- B. Sodium 140
- C. Calcium 8.6
- D. Magnesium 2.0
Correct answer: A
Rationale: The correct answer is A: 'Potassium 5.4'. A potassium level of 5.4 is elevated (normal range is typically 3.5-5.0 mEq/L) and may indicate hyperkalemia, which can have serious cardiac implications. Elevated potassium levels can lead to life-threatening arrhythmias, so immediate reporting and intervention are necessary. Choice B, 'Sodium 140', falls within the normal range (135-145 mEq/L) and does not require immediate reporting. Choice C, 'Calcium 8.6', falls within the normal range (8.5-10.5 mg/dL) and is not an immediate concern. Choice D, 'Magnesium 2.0', is within the normal range (1.5-2.5 mEq/L) and does not need urgent reporting. Therefore, the nurse should prioritize reporting the elevated potassium level as it poses the most immediate risk.
4. A healthcare professional is preparing for change of shift. Which document or tool should the healthcare professional use to communicate?
- A. SBAR
- B. SOAP
- C. DAR
- D. PIE
Correct answer: A
Rationale: SBAR (Situation, Background, Assessment, Recommendation) is a structured method for communicating critical information during shift changes or handoffs. It helps to ensure important details about a patient's condition and care are effectively communicated. Choice B, SOAP (Subjective, Objective, Assessment, Plan), is a note-taking format used in healthcare to document patient encounters, but it is not specifically designed for shift handoffs. Choice C, DAR (Data, Action, Response), and choice D, PIE (Problem, Intervention, Evaluation), are not commonly used communication tools during shift changes in healthcare settings. Therefore, the correct choice is SBAR for effective communication during shift handoffs.
5. A healthcare professional is preparing to insert an IV catheter into a client’s arm prior to initiating IV fluid therapy. Which of the following interventions should the healthcare professional implement to prevent infection?
- A. Thread the catheter up to the hub
- B. Use a sterile technique throughout the procedure
- C. Clean the insertion site with alcohol only
- D. Use gloves but not a mask during the procedure
Correct answer: B
Rationale: Using a sterile technique throughout the procedure is essential to prevent infection when inserting an IV catheter. This includes maintaining aseptic conditions, using sterile equipment, and following proper hand hygiene practices. Choice A is incorrect because threading the catheter up to the hub does not specifically address infection prevention. Choice C is incorrect as cleaning the insertion site with alcohol only may not provide adequate disinfection, as it is essential to use an antiseptic solution to reduce microbial load. Choice D is incorrect as wearing gloves alone is not sufficient protection against infection; a mask should also be worn to prevent the spread of microorganisms through respiratory secretions.
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