HESI LPN
HESI CAT Exam
1. Several clients on a busy antepartum unit are scheduled for procedures that require informed consent. Which situation should the nurse explore further before witnessing the client's signature on the consent form?
- A. The client was medicated for pain with a narcotic analgesic IM 6 hours ago
- B. A 15-year-old primigravida who has been self-supporting for the past 6 months
- C. The obstetrician explained a procedure that a neurologist will perform
- D. The client is illiterate but verbalizes understanding and consent for the procedure
Correct answer: D
Rationale: The correct answer is D because an illiterate client may require additional support to ensure they fully comprehend the information provided in the informed consent process. It is crucial to confirm that the client truly understands the nature of the procedure, its risks, and benefits. While it is important to assess pain control (choice A), a client's previous medication administration does not directly impact their ability to understand the consent process. Choice B, a 15-year-old primigravida who has been self-supporting, may legally provide informed consent depending on the jurisdiction and circumstances, so this situation may not require further exploration. Choice C, explaining a procedure by a different specialist, does not necessarily require additional exploration before witnessing the client's consent.
2. A client with intestinal obstructions has a nasogastric tube to low intermittent suction and is receiving an IV of lactated Ringer’s at 100 ml/H. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 900 mL in the last 24 hours
- B. Serum potassium level of 3.1 mEq/L or mmol/L (SI)
- C. Increased blood urea nitrogen (BUN)
- D. 24-hour intake at the current infusion rate
Correct answer: B
Rationale: The most crucial finding to report to the healthcare provider in this scenario is a serum potassium level of 3.1 mEq/L. Hypokalemia can lead to serious complications, including cardiac issues. Gastric output, increased BUN, and monitoring the 24-hour intake are essential but do not pose an immediate risk as hypokalemia does in this situation.
3. When preparing the client for a thoracentesis, which action is essential for the nurse to take?
- A. Encourage the client to cough during the procedure
- B. Ask the client to void prior to the procedure
- C. Have the client lie in the prone position
- D. Determine if chest x-rays have been completed
Correct answer: B
Rationale: The essential action for the nurse to take when preparing a client for a thoracentesis is to ask the client to void prior to the procedure. This step is crucial as it helps prevent discomfort and reduces the risk of accidental injury. Encouraging the client to cough during the procedure (Choice A) is inappropriate as it can affect the accuracy of the thoracentesis. Having the client lie in the prone position (Choice C) is incorrect; the procedure is typically performed with the client sitting upright or slightly leaning forward. While determining if chest x-rays have been completed (Choice D) is important, ensuring the client has emptied their bladder is more critical for their comfort and safety during the procedure.
4. A client with leukemia who is receiving myelosuppressive chemotherapy has a platelet count of 25,000/mm3. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Monitor for signs of activity intolerance
- B. Require visitors to wear respiratory masks
- C. Assess urine and stool for occult blood
- D. Obtain client’s temperature q4 hours
Correct answer: C
Rationale: The correct answer is to assess urine and stool for occult blood. With a low platelet count, there is an increased risk of bleeding. Monitoring for occult blood is essential to detect any signs of internal bleeding. Choices A, B, and D are not the priority interventions in this situation. While monitoring for signs of activity intolerance, requiring visitors to wear respiratory masks, and obtaining the client's temperature are important aspects of care, they are not as critical as assessing for occult blood in a client with a low platelet count.
5. The nurse is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant’s clinical picture?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory alkalosis
- D. Respiratory acidosis
Correct answer: B
Rationale: Pyloric stenosis often leads to metabolic alkalosis due to the loss of gastric acid from vomiting. Metabolic acidosis would not be expected in pyloric stenosis as there is no excessive acid accumulation. Respiratory alkalosis and respiratory acidosis are not typically associated with pyloric stenosis, making them incorrect choices.
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