Nursing Elites

1. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?

• A. INR of 3.0
• B. Prothrombin time (PT) of 15 seconds
• C. Hemoglobin of 10 g/dl
• D. White blood cell count

Correct answer: A

Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.

2. A client with a history of chronic kidney disease (CKD) is admitted with hyperkalemia. Which intervention should the nurse implement first?

• A. Administer intravenous calcium gluconate.
• B. Administer intravenous insulin and glucose.
• C. Administer intravenous sodium bicarbonate.
• D. Administer a loop diuretic as prescribed.

Correct answer: B

Rationale: The correct answer is B: Administer intravenous insulin and glucose. In the presence of hyperkalemia, the priority intervention is to shift potassium back into the cells to lower serum levels. Insulin, in combination with glucose, helps drive potassium intracellularly. Administering calcium gluconate (choice A) is used to stabilize myocardial cell membranes but does not address the underlying cause of hyperkalemia. Administering sodium bicarbonate (choice C) is not the initial treatment for hyperkalemia. Loop diuretics (choice D) may be used later to enhance potassium excretion but are not the primary intervention for acute hyperkalemia.

3. Which statement by the client indicates an understanding of the dietary modifications required with Cushing syndrome?

• A. I should increase my intake of foods high in calcium.
• B. I should avoid foods with high sodium content.
• C. I need to decrease my intake of vitamin D.
• D. I should consume more potassium-rich foods.

Correct answer: B

Rationale: The correct answer is B: 'I should avoid foods with high sodium content.' Clients with Cushing syndrome need to limit their sodium intake to help reduce fluid retention and manage hypertension, which are common complications of the syndrome. Increasing calcium intake (choice A) is not specifically indicated for Cushing syndrome. Decreasing vitamin D intake (choice C) is not a typical dietary modification for this condition. Consuming more potassium-rich foods (choice D) is not a primary focus of dietary modifications for Cushing syndrome.

4. When planning care for a 10-year-old child with pneumonia receiving oxygen at 5l/min per nasal cannula, what principle of oxygen administration should the nurse consider?

• A. Avoid administration of oxygen at high levels for extended periods.
• B. Increase oxygen flow rate if the child is still tachypneic.
• C. Reduce oxygen levels gradually after symptoms improve.
• D. Humidify the oxygen to prevent drying of mucous membranes.

Correct answer: A

Rationale: The correct principle of oxygen administration to consider is to avoid administering oxygen at high levels for extended periods. High levels of oxygen for prolonged periods can lead to oxygen toxicity, especially in pediatric patients. Increasing the oxygen flow rate based on tachypnea may not be necessary and can potentially lead to oxygen toxicity. Gradually reducing oxygen levels after symptoms improve may compromise the child's oxygenation. While humidifying oxygen is important to prevent drying of mucous membranes, the primary concern in this case is to avoid high oxygen levels for an extended duration to prevent oxygen toxicity.

5. While performing a skin inspection for a female adult client, the nurse observes a rash that is well circumscribed, has silvery scales and plaques, and is located on the elbows and knees. These assessment findings are likely to indicate which condition?

• A. Tinea corporis
• B. Herpes zoster
• C. Psoriasis
• D. Drug reaction

Correct answer: C

Rationale: The correct answer is C, Psoriasis. Psoriasis commonly presents with well-circumscribed, silvery scales and plaques, typically found on extensor surfaces like elbows and knees. Tinea corporis (A) presents as a circular rash, herpes zoster (B) presents as a painful rash following a dermatomal pattern, and drug reactions (D) have variable presentations not specific to elbows and knees with silvery scales and plaques.

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