ATI Perfusion Quizlet

Correct Answer: C

Rationale: The correct answer is C: cobalamin (vitamin B12). Methotrexate can lead to a deficiency in cobalamin, resulting in megaloblastic anemia. Therefore, increasing the oral intake of cobalamin is essential to address this deficiency. Choice A, iron, is incorrect because megaloblastic anemia caused by methotrexate is not typically due to iron deficiency. Choice B, folic acid, is also incorrect as methotrexate does not directly cause folic acid deficiency. Choice D, ascorbic acid (vitamin C), is incorrect as it is not directly related to megaloblastic anemia caused by methotrexate; instead, cobalamin is the key vitamin that needs attention.

Correct Answer: A

Rationale: The correct answer is A because patients with aplastic anemia are at risk for infection due to low white blood cell production. Assigning a roommate with viral pneumonia (choice B), cellulitis (choice C), or multiple abdominal drains (choice D) could expose the patient with aplastic anemia to potential infectious agents, which could further compromise their health.

Correct Answer: C

Rationale: The correct answer is C: Elevated reticulocyte count. Hemorrhage leads to the release of reticulocytes (immature red blood cells) from the bone marrow into circulation as a compensatory mechanism to replenish lost red blood cells. This response helps in restoring the oxygen-carrying capacity of the blood. Choices A and B, hematocrit of 46% and hemoglobin of 13.8 g/dL, may not reflect the immediate response to hemorrhage within 14 hours. Choice D, decreased white blood cell (WBC) count, is not directly related to the body's response to hemorrhage.

Correct Answer: A

Rationale: The correct answer is A. Platelet transfusions are not usually indicated until the platelet count is below 10,000 to 20,000/�L unless the patient is actively bleeding. In this scenario, the platelet count of 42,000/�L is not significantly low to warrant a platelet transfusion without active bleeding. Consulting with the healthcare provider is essential before giving the transfusion to ensure the appropriateness of the treatment. Choices B, C, and D are not directly related to the need for consulting before a platelet transfusion. Petechiae, low blood pressure, and oozing from the venipuncture site are common findings in patients with ITP and may not necessarily contraindicate a platelet transfusion at this platelet count.

Correct Answer: D

Rationale: The correct answer is D: "Cornmeal muffin and orange juice." Cornmeal muffin is a good source of iron, which is beneficial for individuals with iron-deficiency anemia. Orange juice is high in vitamin C, which aids in iron absorption. Choices A, B, and C do not specifically address the need for iron-rich foods, making them less suitable for someone with iron-deficiency anemia. Omelet and whole wheat toast (Choice A) may provide some iron but are not as focused on addressing the specific deficiency. Cantaloupe and cottage cheese (Choice B) and strawberry and banana fruit plate (Choice C) are more general fruit choices and do not emphasize iron-rich options.