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. A client is admitted to the intensive care unit with diabetes insipidus due to a pituitary gland tumor. Which potential complication should the nurse monitor closely?

Correct answer: A

Rationale: The correct answer is A: Hypokalemia. In diabetes insipidus, there is excessive urination leading to fluid loss, which can result in electrolyte imbalances such as hypokalemia. Monitoring potassium levels is crucial to prevent complications like cardiac arrhythmias. Choices B, C, and D are incorrect. Ketonuria is typically seen in diabetic ketoacidosis, peripheral edema is more commonly associated with conditions like heart failure or kidney disease, and elevated blood pressure is not a direct complication of diabetes insipidus related to a pituitary gland tumor.

3. A client with metastatic breast cancer refuses to participate in a clinical trial and further treatments. Her children ask the nurse to convince their mother to reconsider. How should the nurse respond?

Correct answer: D

Rationale: The correct response is to explore the client's decision to refuse treatment and offer support. In this situation, it is crucial for the nurse to respect the client's autonomy and decisions regarding her own health. By exploring the client's reasons for refusal, the nurse can better understand her perspective and provide appropriate support. Option A is incorrect as it focuses on questioning the client in front of her children, potentially pressuring her. Option B is inappropriate as it disregards the client's autonomy and tries to persuade her to participate. Option C is also incorrect as it dismisses the client's decision and fails to address the family's concerns in a supportive manner.

4. Following the evacuation of a subdural hematoma, an older adult develops an infection. The client is transferred to the neuro intensive care unit with a temperature of 101.8 F (39.3 C) axillary, pulse of 180 beats/minute, and a blood pressure of 90/60 mmHg. What is the priority intervention to include in this client’s plan of care?

Correct answer: C

Rationale: The priority intervention for the client in this scenario is to maintain intravenous (IV) access. Given the client's condition with infection, elevated temperature, tachycardia, and hypotension, it is crucial to ensure IV access for administering antibiotics, fluids, and other medications promptly. This can help manage the infection, stabilize hemodynamics, and support the client's hydration and medication needs. Checking neuro vital signs, although important, is secondary to addressing the immediate need for IV access. Keeping the suture line clean and dry is important for wound care but not the priority when dealing with a systemic infection and hemodynamic instability.

5. A client who will be going to surgery states no known allergies to any medications. What is the most important nursing action for the nurse to implement next?

Correct answer: B

Rationale: The most important action to take in this situation is to record 'no known drug allergies' on the preoperative checklist. This ensures that all healthcare staff involved in the surgery are aware of the client's stated lack of drug allergies, helping to prevent any potential adverse reactions. Assessing the client's knowledge of an allergic response (Choice A) may be valuable but is not the most crucial action at this point. Flagging 'no known drug allergies' on the front of the chart (Choice C) is less practical and visible compared to documenting it on the preoperative checklist. Assessing the client’s allergies to non-drug substances (Choice D) is not the priority in this scenario where the focus is on medications due to the upcoming surgery.

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