HESI LPN
Practice HESI Fundamentals Exam
1. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
2. A nurse is providing home care for a client who is receiving tube feedings and medication through a gastrostomy tube. The family member providing the feedings reports that the client has begun to have diarrhea. For which of the following practices should the nurse intervene?
- A. The family member washes out the feeding bag with warm water once every 24 hours.
- B. The family member washes out the feeding bag with hot water once every 24 hours.
- C. The family member washes out the feeding bag with soap and water every 24 hours.
- D. The family member changes the feeding bag every 24 hours.
Correct answer: A
Rationale: The correct answer is A. Washing out the feeding bag with warm water once every 24 hours is not sufficient to prevent bacterial growth and can lead to diarrhea. Using hot water may damage the feeding bag. Washing out the feeding bag with soap and water every 24 hours is excessive and may leave residue that could be harmful. Changing the feeding bag every 24 hours is important for preventing infections but does not directly address the issue of diarrhea in this case.
3. While auscultating the anterior chest of a newly admitted patient, what would the nurse expect to hear?
- A. Normal breathing sounds
- B. Wheezing
- C. Crackles
- D. Stridor
Correct answer: A
Rationale: When auscultating the chest, normal breathing sounds are expected in a healthy individual. Wheezing is a high-pitched whistling sound that indicates narrowed airways and is often heard in conditions like asthma. Crackles are fine, crackling sounds heard on inspiration or expiration and are associated with conditions like pneumonia or heart failure. Stridor is a high-pitched, harsh sound heard during inspiration due to upper airway obstruction. Therefore, choices B, C, and D indicate abnormal respiratory findings, while choice A signifies normal breathing sounds.
4. The healthcare provider retrieves hydromorphone 4mg/mL from the Pyxis MedStation, an automated dispensing system, for a client who is receiving hydromorphone 3 mg IM every 6 hours PRN for severe pain. How many mL should the healthcare provider administer to the client?
- A. 0.75 mL
- B. 1 mL
- C. 0.8 mL
- D. 1.2 mL
Correct answer: C
Rationale: The correct dosage calculation is to divide the prescribed dose by the concentration of the medication to determine the volume needed. In this case, 3 mg (prescribed dose) divided by 4 mg/mL (concentration) equals 0.75 mL. Therefore, the healthcare provider should administer 0.75 mL of hydromorphone to the client. Choices A, B, and D are incorrect because they do not accurately calculate the required volume based on the prescription and concentration provided.
5. A child is postoperative following a tonsillectomy. Which of the following actions should the nurse take?
- A. Administer analgesics to the child on a routine schedule throughout the day and night.
- B. Offer fluids to the child immediately after surgery.
- C. Allow the child to return to solid foods gradually.
- D. Avoid administering any medication until the child is fully awake.
Correct answer: A
Rationale: Administering analgesics to the child on a routine schedule throughout the day and night is crucial for managing postoperative pain effectively and ensuring the child's comfort. Pain management is a priority in the postoperative period to promote healing and prevent complications. Offering fluids to the child immediately after surgery (Choice B) is essential to prevent dehydration, but pain control takes precedence. Allowing the child to return to solid foods gradually (Choice C) is important, but initially, the child may need to start with clear liquids and progress to soft foods post-tonsillectomy. Avoiding administering any medication until the child is fully awake (Choice D) is not advisable because timely pain relief is essential for the child's comfort and recovery.
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