Nursing Elites

1. A nurse is reviewing the laboratory report of a client who has been receiving lithium carbonate for the past 12 months. The nurse notes a lithium level of 0.8 mEq/L. Which of the following orders from the provider should the nurse expect?

• A. Withhold the next dose.
• B. Increase the dosage.
• C. Discontinue the medication.
• D. Administer the medication.

Correct answer: D

Rationale: Administering the medication is appropriate for a stable lithium level of 0.8 mEq/L. A level of 0.8 mEq/L falls within the therapeutic range for lithium, indicating that the client is receiving an adequate dose to maintain therapeutic effects. Withholding the next dose, increasing the dosage, or discontinuing the medication would not be indicated at this lithium level as it is within the desired range for therapeutic benefit. Therefore, the correct action would be to continue administering the medication to ensure the client maintains the therapeutic level of lithium.

2. A healthcare professional is preparing to administer digoxin to a client with heart failure. Which of the following laboratory values should the professional report to the provider?

• A. Potassium 4.0 mEq/L
• B. Calcium 9.5 mg/dL
• C. Sodium 140 mEq/L
• D. Magnesium 2.0 mg/dL

Correct answer: C

Rationale: The correct answer is C: Sodium 140 mEq/L. An elevated sodium level can affect the effectiveness of digoxin therapy and may lead to toxicity. Therefore, it is crucial to report this value to the provider. Potassium, calcium, and magnesium levels are important as well, but elevated sodium can have a more direct impact on digoxin therapy in this scenario.

3. A nurse is caring for a client who is receiving warfarin therapy. Which of the following laboratory results indicates the need for an increase in the dose of warfarin?

• A. PT 28 seconds
• B. INR 1.2
• C. aPTT 40 seconds
• D. Fibrinogen 350 mg/dL

Correct answer: B

Rationale: An INR of 1.2 is below the therapeutic range for a client on warfarin, indicating inadequate anticoagulation. Therefore, the client would require an increase in the dose of warfarin to achieve the desired therapeutic effect. Choices A, C, and D are not indicative of the need for a dose increase in warfarin therapy. PT of 28 seconds is within the therapeutic range, aPTT of 40 seconds is also within the normal range, and fibrinogen level of 350 mg/dL does not provide information about the anticoagulant effect of warfarin.

4. What is the best intervention for a patient experiencing hypoxia?

• A. Administer oxygen
• B. Reposition the patient
• C. Provide humidified air
• D. Provide chest physiotherapy

Correct answer: A

Rationale: The best intervention for a patient experiencing hypoxia is to administer oxygen. Oxygen therapy helps improve oxygenation levels in the blood, addressing the underlying cause of hypoxia. Repositioning the patient, providing humidified air, and chest physiotherapy may be beneficial in certain situations but are not the primary interventions for hypoxia. Administering oxygen is crucial to quickly alleviate hypoxia and support the patient's respiratory function.

5. A nurse is caring for a client who has a new prescription for warfarin. Which of the following laboratory tests should the nurse use to monitor the client's therapeutic response to the medication?

• A. INR
• B. aPTT
• C. Platelet count
• D. Hemoglobin A1C

Correct answer: A

Rationale: The correct answer is A: INR. The INR (International Normalized Ratio) is the laboratory test used to monitor the therapeutic response of warfarin. It helps ensure that the client's clotting time is within the desired range to prevent complications such as excessive bleeding or clotting. Choice B, aPTT (Activated Partial Thromboplastin Time), is not typically used to monitor warfarin therapy but rather for assessing heparin therapy. Choice C, Platelet count, assesses the number of platelets in the blood and is not specifically used to monitor warfarin therapy. Choice D, Hemoglobin A1C, is a test used to monitor long-term blood sugar control in diabetic patients and is not relevant to monitoring warfarin therapy.

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