the healthcare provider prescribes potassium chloride 25 meq in 500 ml d5w to infuse over 6 hours the available 20 ml vial of potassium chloride is la
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Nursing Elites

HESI LPN

CAT Exam Practice

1. The healthcare provider prescribes potassium chloride 25 mEq in 500 ml D5W to infuse over 6 hours. The available 20 ml vial of potassium chloride is labeled '10 mEq/5 ml.' How many ml of potassium chloride should the nurse add to the IV fluid?

Correct answer: B

Rationale: To prepare 25 mEq of potassium chloride for the infusion, the nurse should add 5 ml of the 10 mEq/5 ml solution. This concentration provides the required amount of potassium chloride without exceeding the needed volume. Choice A would result in 12.5 mEq, which exceeds the prescribed amount. Choices C and D are incorrect as they do not align with the correct calculation based on the vial concentration.

2. Which client is at the greatest risk for developing delirium?

Correct answer: B

Rationale: The correct answer is B because older adults are at higher risk for delirium, especially following a recent suicide attempt, which can be a significant stressor. Choice A is less likely to develop delirium solely due to difficulty sleeping; delirium is more complex and multifactorial. Choice C, a young adult taking antipsychotic medications, may be at risk for other conditions but not necessarily delirium. Choice D, a middle-aged woman using supplemental oxygen, is not directly linked to an increased risk of delirium compared to the older client who recently attempted suicide.

3. 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?

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.

4. During the administration of albuterol per nebulizer, the client complains of shakiness. The client’s vital signs are heart rate 120 beats/minute, respirations 20 breaths/minute, blood pressure 140/80. What action should the nurse take?

Correct answer: D

Rationale: Shakiness is a known side effect of albuterol, which can often be managed without the need for additional medications. Educating the client about the potential side effects of albuterol, including shakiness, helps them understand what to expect and how to manage these effects. Administering an anxiolytic (Choice A) is not indicated as shakiness related to albuterol is not a sign of anxiety. Obtaining a 12-lead electrocardiogram (Choice B) is not necessary based on the client's presentation of shakiness and vital signs. Stopping the albuterol administration and restarting in 30 minutes (Choice C) may not be necessary since shakiness is a common side effect that can often be managed without interrupting the treatment.

5. A woman with an anxiety disorder calls her obstetrician’s office and tells the nurse of increased anxiety since the normal vaginal delivery of her son three weeks ago. Since she is breastfeeding, she stopped taking her antianxiety medications, but thinks she may need to start taking them again because of her increased anxiety. What response is best for the nurse to provide this woman?

Correct answer: C

Rationale: The correct answer is C. Some antianxiety medications are considered safe for use while breastfeeding, and the nurse should provide this information to alleviate the woman's concerns. Choice A has been corrected to focus on the safety of certain antianxiety medications during breastfeeding, which is more accurate. Choice B suggests stress-relieving alternatives, which may help but do not address the need for antianxiety medication if required. Choice D is incorrect because it minimizes the woman's concerns by dismissing her increased anxiety as a normal response.

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