A nurse is providing discharge teaching to a client following a total gastrectomy.
The nurse should instruct the client about which of the following medications?
Vitamin B12.
Ranitidine.
Vitamin K.
Metoclopramide.
The Correct Answer is A
Choice A rationale:
After a total gastrectomy, the client lacks the intrinsic factor necessary for the absorption of vitamin B12 in the terminal ileum. Therefore, vitamin B12 supplementation is essential to prevent pernicious anemia, a condition caused by vitamin B12 deficiency. The absence of intrinsic factor hinders the absorption of vitamin B12 from dietary sources, making it necessary to provide this vitamin through injections or high-dose oral supplements. Vitamin B12 supplementation is a standard practice following a total gastrectomy.
Choice B rationale:
Ranitidine is a histamine-2 (H2) receptor antagonist used to reduce stomach acid production. It is not directly related to vitamin B12 deficiency and is not typically prescribed following a total gastrectomy. Vitamin B12 supplementation, on the other hand, addresses the specific deficiency caused by the absence of intrinsic factor.
Choice C rationale:
Vitamin K is essential for blood clotting and bone health. However, it is not the primary concern following a total gastrectomy. Vitamin B12 deficiency leading to pernicious anemia is the major focus of post-gastrectomy supplementation. While vitamin K may be important for overall health, it is not the immediate priority in this scenario.
Choice D rationale:
Metoclopramide is a medication used to treat gastrointestinal disorders, including gastroparesis and gastroesophageal reflux disease (GERD). It does not directly address the vitamin B12 deficiency resulting from the absence of intrinsic factor. Vitamin B12 supplementation is specifically indicated to prevent pernicious anemia in this context.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Explanation: Sweet potato is a food that is high in potassium, which is an electrolyte that regulates fluid balance, nerve impulses, and muscle contractions in the body. A medium- sized sweet potato contains about 541 mg of potassium, which is more than 10% of the recommended daily intake for adults. Baked chicken breast, wheat bread, and canned green beans are foods that are low or moderate in potassium, containing less than 300 mg per serving.
Correct Answer is D
Explanation
The correct answer is D. Use a solution of 0.9% sodium chloride to flush the transfusion tubing.
Choice A reason: Storing a unit of blood at room temperature for 1 hour prior to the infusion is not recommended. Blood products should be kept refrigerated until just before the transfusion to minimize the risk of bacterial contamination. The recommended storage temperature for packed RBCs is 1-6°C. If blood is left at room temperature, it should be infused within 30 minutes to ensure safety.
Choice B reason: Ensuring that the transfusion is completed within 6 hours is not correct. The standard practice is to complete a blood transfusion over 2 to 4 hours, depending on the volume and the patient’s condition. This is to reduce the risk of bacterial growth and transfusion reactions. Prolonging the transfusion time beyond 4 hours increases the risk of bacterial contamination and can compromise the efficacy of the transfused red blood cells.
Choice C reason: Obtaining venous access using a 22-gauge needle is not ideal for a transfusion of packed RBCs. A larger bore needle, typically an 18-gauge or 20-gauge, is preferred to ensure adequate flow of the viscous packed RBCs and to prevent hemolysis. The smaller the gauge number, the larger the needle diameter, so a 22-gauge needle might be too small and could damage the red blood cells during the transfusion.
Choice D reason: Using a solution of 0.9% sodium chloride to flush the transfusion tubing is the correct action. Normal saline is isotonic and is the only fluid compatible with packed RBCs. It is used to prime the transfusion set and to flush the line before and after the transfusion to prevent hemolysis and clotting within the tubing.
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