Nursing Elites

1. Which lab value is critical for patients on warfarin therapy?

• A. Monitor INR
• B. Monitor potassium levels
• C. Monitor sodium levels
• D. Monitor platelet count

Correct answer: A

Rationale: The correct answer is to monitor INR levels for patients on warfarin therapy. INR monitoring is essential because it helps assess the clotting tendency of the blood and ensures that patients are within the therapeutic range to prevent both blood clots and excessive bleeding. Monitoring potassium levels (Choice B), sodium levels (Choice C), or platelet count (Choice D) is not specifically required for patients on warfarin therapy and does not directly impact the effectiveness or safety of the medication.

2. A nurse is reviewing the medical record of a client who is receiving total parenteral nutrition (TPN). Which of the following findings should the nurse report to the provider?

• A. Glucose 180 mg/dL
• B. Sodium 136 mEq/L
• C. Potassium 3.8 mEq/L
• D. Albumin 3.5 g/dL

Correct answer: A

Rationale: The correct answer is A: "Glucose 180 mg/dL." Elevated glucose levels in a client receiving TPN may indicate hyperglycemia, which can lead to complications such as osmotic diuresis, dehydration, and electrolyte imbalances. It is essential to report this finding to the provider for further evaluation and management. Choices B, C, and D are within normal ranges and do not indicate immediate concerns related to TPN administration.

3. A nurse is receiving change-of-shift report for a group of clients. Which of the following clients should the nurse plan to assess first?

• A. A client who has sinus arrhythmia and is receiving monitoring.
• B. A client who has a hip fracture and a new onset of tachypnea.
• C. A client who has epidural analgesia and weakness in the lower extremities.
• D. A client who has diabetes and a hemoglobin A1C of 6.8%.

Correct answer: B

Rationale: The correct answer is B because a new onset of tachypnea can indicate a respiratory complication, which requires immediate assessment. Sinus arrhythmia, epidural analgesia with weakness, and a hemoglobin A1C level of 6.8% in a client with diabetes do not pose immediate life-threatening concerns that require urgent assessment compared to the potential respiratory issues associated with tachypnea.

4. A client is receiving warfarin for atrial fibrillation. Which of the following laboratory tests should the nurse expect to be ordered to monitor the effect of warfarin?

• A. Platelet count
• B. International normalized ratio (INR)
• C. Prothrombin time (PT)
• D. Partial thromboplastin time (PTT)

Correct answer: B

Rationale: The correct answer is B: International normalized ratio (INR). When a client is on warfarin therapy, the INR is monitored regularly to assess the anticoagulant effects of the medication. A therapeutic INR range for most indications is between 2.0 to 3.0. Choices A, C, and D are not typically used to monitor the effect of warfarin. Platelet count assesses the number of platelets in the blood, PT measures the clotting time of plasma, and PTT evaluates the intrinsic pathway of coagulation.

5. Which lab value should be closely monitored for a patient receiving heparin therapy?

• A. Monitor aPTT
• B. Monitor INR
• C. Monitor potassium levels
• D. Monitor sodium levels

Correct answer: A

Rationale: The correct answer is to monitor aPTT. Activated Partial Thromboplastin Time (aPTT) is crucial to monitor when a patient is receiving heparin therapy. Heparin works by potentiating antithrombin III, leading to the inhibition of thrombin and factor Xa. Monitoring aPTT helps ensure the patient is within the therapeutic range for heparin, reducing the risk of bleeding complications. Monitoring INR (Choice B) is more relevant for patients on warfarin therapy. Monitoring potassium (Choice C) and sodium levels (Choice D) is important but not specific to heparin therapy.

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