HESI LPN
HESI Fundamentals Exam
1. The healthcare professional prepares a 1,000 ml IV of 5% dextrose and water to be infused over 8 hours. The infusion set delivers 10 drops per milliliter. The healthcare professional should regulate the IV to administer approximately how many drops per minute?
- A. 80
- B. 8
- C. 21
- D. 25
Correct answer: C
Rationale: To calculate the drops per minute for the IV infusion, first determine the total drops to be infused over 8 hours. 1,000 ml to be infused over 8 hours means 125 ml per hour (1000 ml / 8 hours = 125 ml/hr). Since the infusion set delivers 10 drops per ml, 125 ml/hr x 10 drops/ml = 1250 drops/hr. To find drops per minute, divide the drops per hour by 60 (minutes in an hour): 1250 drops/hr / 60 minutes = 20.83 drops/minute, which rounds up to 21 drops per minute (Option C). This rate ensures the correct infusion rate over 8 hours. Choices A, B, and D are incorrect calculations and do not provide the appropriate infusion rate needed to administer the IV over the specified time period.
2. The healthcare provider is assessing a client with a diagnosis of asthma. Which assessment finding would be most concerning?
- A. Wheezing
- B. Shortness of breath
- C. Use of accessory muscles
- D. Cough with sputum production
Correct answer: C
Rationale: The most concerning assessment finding in a client with asthma is the use of accessory muscles. This indicates that the client is working harder to breathe, which could signify respiratory distress. Wheezing, choice A, is a common finding in asthma and indicates narrowed airways but may not necessarily imply immediate distress. Shortness of breath, choice B, is also common in asthma but may not be as concerning as the use of accessory muscles. Cough with sputum production, choice D, can occur in asthma exacerbations but may not be as critical as signs of increased work of breathing like the use of accessory muscles.
3. A client with diabetes mellitus is learning to self-administer insulin. Which action by the client indicates the need for further teaching?
- A. The client rotates injection sites on the abdomen.
- B. The client draws up the insulin dose after warming the vial to room temperature.
- C. The client pinches the skin before injecting the insulin.
- D. The client injects the insulin at a 90-degree angle.
Correct answer: B
Rationale: Drawing up insulin after warming the vial to room temperature indicates a need for further teaching, as insulin should be at room temperature for administration. Choice A is correct as rotating injection sites helps prevent lipodystrophy. Choice C is correct as pinching the skin helps ensure proper subcutaneous injection. Choice D is correct as injecting insulin at a 90-degree angle is the recommended technique for subcutaneous injections.
4. A post-op nurse has an indwelling catheter in place for gravity drainage. The nurse notes that the client's urine bag has been empty for 2 hours. The first action the nurse should take is to:
- A. Check to see if the tubing is kinked.
- B. Increase the IV fluid rate.
- C. Check the catheter insertion site.
- D. Contact the healthcare provider.
Correct answer: A
Rationale: The correct action for the nurse to take when the urine bag has not filled for 2 hours is to check if the tubing is kinked. Kinks in the tubing can obstruct the flow of urine from the catheter, leading to decreased drainage. Increasing the IV fluid rate is not the appropriate initial action in this situation as the primary concern is with the catheter drainage. Checking the catheter insertion site would be secondary to ensuring proper drainage. Contacting the healthcare provider is not necessary as the issue can often be resolved by checking for simple tubing obstructions first.
5. A nurse in a health clinic is caring for a 20-year-old client who tells the nurse that their last physical exam was in high school. Which of the following health screenings should the nurse expect the provider to perform for this client?
- A. Testicular examination
- B. Blood glucose
- C. Fecal occult blood
- D. Prostate-specific antigen
Correct answer: A
Rationale: A testicular examination is appropriate for a 20-year-old male to screen for testicular cancer, which is more common in younger age groups. Testicular cancer is most frequently diagnosed in individuals between the ages of 15 and 40. Blood glucose screening is typically recommended for older individuals or those at risk for diabetes. Fecal occult blood testing is used for colorectal cancer screening, usually starting at age 50. Prostate-specific antigen testing is commonly considered for prostate cancer screening in older males, typically around age 50. Therefore, the most appropriate screening for the 20-year-old client is the testicular examination.
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