Nursing Elites

1. A patient with atrial fibrillation is prescribed warfarin. Which laboratory test should the nurse monitor to assess the effectiveness of the medication?

• A. Complete blood count (CBC)
• B. Prothrombin time (PT)/INR
• C. Partial thromboplastin time (PTT)
• D. Serum potassium level

Correct answer: B

Rationale: The correct answer is B: Prothrombin time (PT)/INR. Warfarin affects the clotting ability of the blood by inhibiting vitamin K-dependent clotting factors. Monitoring the prothrombin time (PT) and international normalized ratio (INR) is crucial to assess the effectiveness and safety of warfarin therapy. These tests help determine if the patient is within the desired anticoagulation range to prevent either clotting issues or excessive bleeding.

2. A client with hepatic encephalopathy is being treated with lactulose. What is an expected outcome of this treatment?

• A. Reduction in blood ammonia levels
• B. Improvement in liver enzyme levels
• C. Decrease in bilirubin levels
• D. Increase in urine output

Correct answer: A

Rationale: Lactulose is used to treat hepatic encephalopathy by reducing blood ammonia levels through promoting its excretion via the intestines. Elevated ammonia levels contribute to the development of encephalopathy symptoms, so by lowering them, the client's neurological status can improve.

3. Which client's laboratory value requires immediate intervention by a nurse?

• A. A client with GI bleeding who is receiving a blood transfusion and has a hemoglobin of 7 grams.
• B. A client with pancreatitis who has a fasting glucose of 190 mg/dl today and had 160 mg/dl yesterday.
• C. A client with hepatitis who is jaundiced and has a bilirubin level that is 4 times the normal value.
• D. A client with cancer who has an absolute neutrophil count < 500 today and had 2,000 yesterday.

Correct answer: D

Rationale: The correct answer is D. A sudden drop in neutrophil count to below 500 indicates severe neutropenia, putting the client at high risk for infections. Neutrophils are essential for fighting off infections, and a significant decrease in their count can compromise the client's immune response. Immediate intervention is necessary to prevent the development of serious infections in the client with neutropenia.

4. A client with a new diagnosis of diabetes mellitus is learning to self-administer insulin. Which instruction should the nurse include?

• A. Store the insulin in the freezer.
• B. Administer the insulin at the same site each time.
• C. Rotate injection sites within the same region.
• D. Shake the vial vigorously before drawing up the insulin.

Correct answer: C

Rationale: The correct instruction for a client learning to self-administer insulin is to rotate injection sites within the same region. This practice helps prevent lipodystrophy, which is a condition characterized by fat tissue changes due to repeated injections in the same spot, and also ensures consistent absorption of insulin throughout the body. Storing insulin in the freezer is incorrect as it can lead to denaturation of the insulin. Administering the insulin at the same site each time can cause lipodystrophy and inconsistent absorption. Shaking the vial vigorously before drawing up the insulin is also incorrect as it can lead to insulin degradation.

5. In planning the turning schedule for a bedfast client, it is most important for the nurse to consider what assessment finding?

• A. 4+ pitting edema of both lower extremities.
• B. A Braden risk assessment scale rating score of ten.
• C. Warm, dry skin with a fever of 100° F.
• D. Hypoactive bowel sounds with infrequent bowel movements.

Correct answer: B

Rationale: A low Braden score indicates a high risk for pressure ulcers, making regular turning crucial to prevent skin breakdown.

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