HESI LPN
HESI Fundamentals Test Bank
1. A client has a prescription for 5 units of regular insulin and 10 units of NPH insulin to mix together and administer subcutaneously. Determine the correct order of steps for this procedure.
- A. Inject 5 units of air into the bottle of regular insulin
- B. Withdraw the correct dose of NPH insulin from the bottle
- C. Inject 10 units of air into the bottle of NPH insulin
- D. Withdraw the correct dose of regular insulin from the bottle
Correct answer: B
Rationale: The correct order of steps for this procedure is to first inject air into the NPH insulin bottle to prevent vacuum formation. After injecting air into the NPH insulin, the next step is to withdraw the correct dose of regular insulin from its bottle. This sequence ensures that the regular insulin is drawn after the NPH insulin, preventing contamination and ensuring accurate dosing. Therefore, choice B is correct. Choices A, C, and D are incorrect because air should be injected into the NPH insulin first, not the regular insulin, and the doses should be withdrawn in the appropriate order to maintain the integrity and potency of each insulin type.
2. A client with a new colostomy is being taught how to irrigate the ostomy. The healthcare provider realizes that the client needs further teaching when the client:
- A. Positions the irrigating solution bag 30 inches below the stoma
- B. Uses an open system for irrigation
- C. Irrigates the colostomy twice a day
- D. Cleans the stoma with harsh chemicals
Correct answer: A
Rationale: The correct answer is A. Positioning the irrigating solution bag 30 inches below the stoma would cause discomfort and ineffective irrigation as the bag should be positioned at a lower level. Option B is incorrect because a closed system for irrigation is the preferred method for colostomy irrigation. Option C is incorrect as colostomy irrigation is typically done once a day unless otherwise instructed by a healthcare provider. Option D is incorrect as the stoma should be cleaned with mild soap and water to prevent skin irritation and damage.
3. An occupational health nurse is caring for an employee who was exposed to an unknown dry chemical, resulting in a chemical burn. Which of the following interventions should the nurse include in the plan of care?
- A. Irrigate the affected area with running water.
- B. Wash the affected area with antibacterial soap.
- C. Brush the chemical off the skin and clothing.
- D. Leave the clothing in place until emergency personnel arrive.
Correct answer: C
Rationale: The correct intervention for an employee exposed to an unknown dry chemical is to brush off the chemical from the skin and clothing. This helps prevent further skin contact before irrigation can be done. Irrigating the affected area with running water is crucial after brushing off the chemical to minimize the exposure. Washing the affected area with antibacterial soap is not appropriate for chemical burns, as soap can react with certain chemicals and worsen the situation. Leaving the clothing in place until emergency personnel arrive may allow the chemical to continue to harm the skin and should be avoided.
4. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 1,000-mL IV to infuse over 10 hr. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 100 mL/hr
- B. 150 mL/hr
- C. 75 mL/hr
- D. 50 mL/hr
Correct answer: A
Rationale: To infuse 1,000 mL over 10 hr, the IV pump should be set to deliver 100 mL/hr. This calculation is derived by dividing the total volume (1,000 mL) by the total time in hours (10 hr), resulting in the infusion rate of 100 mL/hr. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation for this scenario.
5. A client asks a nurse about the purpose of advance directives.
- A. Indicate a form of treatment a client is willing to accept.
- B. Specify the client's preferred hospital for treatment.
- C. Determine the client's daily medication schedule.
- D. Outline the client's financial status and insurance coverage.
Correct answer: A
Rationale: The correct answer is A: Advance directives serve to indicate the forms of medical treatment a client wishes to receive or decline in the event they are unable to communicate their preferences. This legal document allows individuals to make decisions about their future healthcare. Choice B is incorrect as advance directives do not specify the client's preferred hospital for treatment. Choice C is incorrect as advance directives do not determine the client's daily medication schedule; this is typically addressed in a medication administration record. Choice D is incorrect as advance directives do not outline the client's financial status and insurance coverage, but rather focus on healthcare treatment preferences.
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