HESI LPN
Medical Surgical HESI 2023
1. A client is receiving a secondary infusion of erythromycin 1 gram in 100 mL dextrose 5% in water (D5W) to be infused in 45 minutes. How many mL/hour should the nurse program the infusion pump?
- A. 100 mL/hour.
- B. 125 mL/hour.
- C. 133 mL/hour.
- D. 150 mL/hour.
Correct answer: C
Rationale: To infuse 100 mL in 45 minutes, the infusion rate should be set to 133 mL/hour (100 mL / 0.75 hours). This calculation is obtained by dividing the total volume to be infused by the total time for infusion (100 mL / 0.75 hours = 133 mL/hour). Therefore, choice C is the correct answer. Choices A, B, and D are incorrect because they do not accurately calculate the infusion rate required to deliver the medication within the specified time frame.
2. A client admitted to a surgical unit is being evaluated for an intestinal obstruction. The HCP prescribes an NG tube to be inserted and placed on intermittent low wall suction. Which intervention should the nurse implement to facilitate proper tube placement?
- A. Soak the NG tube in warm water
- B. Insert the tube with the client's head tilted back
- C. Apply suction while inserting the tube
- D. Elevate the head of the bed 60 to 90 degrees
Correct answer: D
Rationale: Elevating the head of the bed 60 to 90 degrees is the correct intervention to facilitate proper placement of the NG tube. This position helps to use gravity to guide the tube smoothly into the gastrointestinal tract. Soaking the NG tube in warm water (Choice A) is not necessary for proper placement. Inserting the tube with the client's head tilted back (Choice B) can cause discomfort and may lead to improper placement. Applying suction while inserting the tube (Choice C) is not recommended as it can cause trauma to the nasal passages and esophagus.
3. The nurse is obtaining a client's fingerstick glucose level. After gently milking the client's finger, the nurse observes that the distal tip of the finger appears reddened and engorged. What action should the nurse take?
- A. Collect the blood sample
- B. Assess radial pulse volume
- C. Apply pressure to the site
- D. Select another finger
Correct answer: A
Rationale: When the nurse observes that the distal tip of the client's finger is reddened and engorged after milking, it indicates adequate blood flow. At this point, the appropriate action is to collect the blood sample for glucose level testing. Assessing radial pulse volume (Choice B) is unrelated to the situation and not necessary. Applying pressure to the site (Choice C) may disrupt the blood sample collection process. Selecting another finger (Choice D) is not warranted as the engorgement indicates sufficient blood flow for sampling.
4. Before selecting which medication to administer, which action should the nurse implement if a postoperative client reports incisional pain and has two prescriptions for PRN analgesia?
- A. Compare the client’s pain scale rating with the prescribed dosing.
- B. Determine which prescription will have the quickest onset of action.
- C. Ask the client to choose which medication is needed for the pain.
- D. Document the client’s report of pain in the electronic medical record.
Correct answer: A
Rationale: When a postoperative client reports incisional pain and has two prescriptions for PRN analgesia, the nurse should first compare the client’s pain scale rating with the prescribed dosing. This action ensures that the client receives the appropriate medication based on their pain level. Determining the onset of action or asking the client to choose the medication does not guarantee that the right medication is administered according to the pain intensity. Documenting the pain report is important but should not be the first action when deciding which medication to administer.
5. A male client with acquired immune deficiency syndrome (AIDS) and Pneumocystis carinii pneumonia has a CD4+ T cell count of 200 cells/microliter. The client asks the nurse why he keeps getting these massive infections. Which pathophysiologic mechanism should the nurse describe in response to the client's question?
- A. Bone marrow suppression of white blood cells causes insufficient cells to phagocytize organisms.
- B. Exposure to multiple environmental infectious agents overburdens the immune system until it fails.
- C. The humoral immune response lacks B cells that form antibodies and opportunistic infections result.
- D. Inadequate numbers of T lymphocytes are available to initiate cellular immunity and macrophages.
Correct answer: D
Rationale: With a CD4+ T cell count of 200 cells/microliter, the client's immune system is severely compromised, leading to opportunistic infections.
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