Nursing Elites

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?

• A. 12.5
• B. 5
• C. 10
• D. 20

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. To prevent aspiration in a client on mechanical ventilation receiving continuous enteral feedings through a nasogastric tube, which intervention is most important for the nurse to implement?

• A. Verify the feeding tube position with a daily chest x-ray
• B. Maintain head of bed elevated while enteral feeding is infusing
• C. Check feeding tube placement with air bolus prior to use
• D. Aspirate stomach contents every 4 hours to assess residuals

Correct answer: B

Rationale: The most important intervention to prevent aspiration in a client receiving continuous enteral feedings through a nasogastric tube while on mechanical ventilation is to maintain the head of the bed elevated while the feeding is infusing. This position helps reduce the risk of regurgitation and aspiration. Options A, C, and D are not as crucial as maintaining proper positioning to prevent aspiration. Verifying tube position with a daily chest x-ray is important but not the most crucial. Checking tube placement with an air bolus and aspirating stomach contents are important procedures but do not directly address the prevention of aspiration during enteral feedings.

3. A client who is bleeding after a vaginal delivery receives a prescription for methylergonovine (Methergine) 0.4 mg IM every 2 hours, not to exceed 5 doses. The medication is available in ampules containing 0.2 mg/ml. What is the maximum dosage in mg that the nurse should administer to this client? (Enter numeric value only)

• A. 2
• B. 3
• C. 4
• D. 5

Correct answer: A

Rationale: To calculate the maximum dosage in mg that the nurse should administer, multiply the dose per administration (0.4 mg) by the maximum number of doses allowed (5 doses): 0.4 mg/dose * 5 doses = 2 mg. Therefore, the nurse should administer a maximum dosage of 2 mg to the client. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.

4. The charge nurse of a cardiac telemetry unit is assigning client care to a registered nurse (RN) and a practical nurse (PN). Which client should be assigned to the RN?

• A. One day after a permanent pacemaker insertion, a client's telemetry monitor shows a pacer rhythm.
• B. Two hours after undergoing cardioversion, a client's telemetry monitor shows a normal sinus rhythm.
• C. A client started on carvedilol the previous day for heart failure has controlled atrial fibrillation.
• D. Four hours after admission, a client with syncope shows complete heart block on the telemetry monitor.

Correct answer: D

Rationale: The correct answer is D because complete heart block is a critical condition that requires immediate assessment and management by a registered nurse (RN). In complete heart block, there is a significant conduction disturbance that can lead to serious complications. The RN is better equipped to handle such complex and potentially life-threatening situations. Choices A, B, and C involve less critical conditions that can be managed by a practical nurse (PN) under the supervision of the RN. Therefore, assigning the client with complete heart block to the RN ensures prompt and appropriate intervention.

5. The client with a mechanical valve replacement understands the discharge teaching when the client makes which statement?

• A. ''I will need to take antibiotics before any type of invasive dental work''
• B. ''I will not have to take any more heart medication since I have a new valve''
• C. ''I will need to have this valve replaced in about 10 years''
• D. ''I should notify my healthcare provider if I hear a clicking sound near my heart''

Correct answer: A

Rationale: The correct answer is A. Clients with mechanical valve replacements need to take prophylactic antibiotics before dental procedures to prevent endocarditis. Choice B is incorrect because even with a new valve, heart medications may still be necessary to manage the condition. Choice C is incorrect because mechanical valves typically do not need replacement as frequently as within 10 years. Choice D is incorrect because hearing a clicking sound near the heart could indicate valve malfunction, not just the need to notify the healthcare provider.

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