Nursing Elites

1. Warfarin (Coumadin) is an anticoagulant and interferes with the action of:

• A. Platelets
• B. Vitamin K
• C. Calcium
• D. Vitamin B12

Correct answer: B

Rationale: The correct answer is B: Vitamin K. Warfarin works by inhibiting the action of vitamin K, which is crucial for the synthesis of clotting factors in the blood. By interfering with vitamin K, warfarin decreases the production of these clotting factors, thereby prolonging the time it takes for blood to clot. This is why individuals on warfarin therapy need to monitor their vitamin K intake. Choices A, C, and D are incorrect because warfarin does not directly interfere with platelets, calcium, or vitamin B12.

2. A client who _____ diet requires _____ amounts of vitamin C.

• A. Follows a vegan diet
• B. Smokes cigarettes
• C. Follows a vegetarian diet
• D. Follows a ketogenic diet

Correct answer: B

Rationale: Clients who smoke require more vitamin C due to increased oxidative stress and depletion of vitamin C. Smoking leads to the generation of free radicals in the body, causing oxidative stress and consuming higher levels of antioxidants like vitamin C. Choices A, C, and D are incorrect as they do not directly relate to the increased need for vitamin C as seen in smokers.

3. Which type of anemia is associated with chronic kidney disease?

• A. Iron-deficiency anemia
• B. Vitamin B12 deficiency anemia
• C. Aplastic anemia
• D. Erythropoietin deficiency anemia

Correct answer: D

Rationale: The correct answer is D, Erythropoietin deficiency anemia. Chronic kidney disease often leads to anemia due to decreased production of erythropoietin. This hormone, produced by the kidneys, stimulates the bone marrow to produce red blood cells. Choices A, B, and C are incorrect. Iron-deficiency anemia is characterized by low iron levels, vitamin B12 deficiency anemia by inadequate vitamin B12, and aplastic anemia by bone marrow failure.

4. The nurse is preparing to assist in examining a Hispanic child who was brought to the clinic by the mother. During the assessment of the child, the nurse should take which action(s)?

• A. Admiring the child
• B. Taking the child’s temperature
• C. A, D
• D. Obtaining an interpreter if necessary

Correct answer: C

Rationale: In a multicultural healthcare setting, it's essential for the nurse to build rapport with the child and family. Admiring the child can help establish trust and comfort. Additionally, since the child's mother brought them to the clinic, it's crucial to ensure effective communication. Obtaining an interpreter, if necessary, is vital for clear and accurate information exchange. Taking the child's temperature, while important in a physical assessment, is not specifically highlighted in this scenario. Therefore, choices A and B alone are not sufficient, making the correct answer C, which includes both building rapport by admiring the child and ensuring clear communication by obtaining an interpreter if needed.

5. The client diagnosed with thalassemia, a hereditary anemia, is to receive a transfusion of packed RBCs. The cross-match reveals the presence of antibodies that cannot be cross-matched. Which precaution should the nurse implement when initiating the transfusion?

• A. Start the transfusion at 10-15 mL per hour for 15-30 minutes
• B. Re-crossmatch the blood until the antibodies are identified
• C. Have the client sign a permit to receive uncrossmatched blood
• D. Have the unlicensed nursing assistant stay with the client

Correct answer: A

Rationale: Starting the transfusion slowly at 10-15 mL per hour for 15-30 minutes is essential when the cross-match reveals the presence of antibodies that cannot be cross-matched. This precaution allows the nurse to monitor for any adverse reactions due to the antibodies. Re-crossmatching the blood until the antibodies are identified (choice B) may delay the transfusion process and put the client at risk. Having the client sign a permit to receive uncrossmatched blood (choice C) is not a standard practice and does not address the immediate need for precautions during transfusion. Having the unlicensed nursing assistant stay with the client (choice D) is unrelated to the safe initiation of the transfusion and is not a precaution specific to managing antibodies in blood products.

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