ATI RN
ATI Perfusion Quizlet
1. A patient who is receiving methotrexate for severe rheumatoid arthritis develops a megaloblastic anemia. The nurse will anticipate teaching the patient about increasing oral intake of
- A. iron.
- B. folic acid.
- C. cobalamin (vitamin B12).
- D. ascorbic acid (vitamin C).
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.
2. A patient who has immune thrombocytopenic purpura (ITP) has an order for a platelet transfusion. Which information indicates that the nurse should consult with the healthcare provider before obtaining and administering platelets?
- A. Platelet count is 42,000/µL
- B. Petechiae are present on the chest
- C. Blood pressure (BP) is 94/56 mm Hg
- D. Blood is oozing from the venipuncture site
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/µL unless the patient is actively bleeding. In this scenario, the platelet count of 42,000/µL 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.
3. A patient's complete blood count (CBC) shows a hemoglobin of 19 g/dL and a hematocrit of 54%. Which question should the nurse ask to determine possible causes of this finding?
- A. Have you had any recent weight loss?
- B. Do you have any history of lung disease?
- C. Have you noticed any dark or bloody stools?
- D. What is your dietary intake of meats and proteins?
Correct answer: B
Rationale: The correct answer is B: "Do you have any history of lung disease?" The elevated hemoglobin and hematocrit levels suggest polycythemia, which can be seen in conditions like chronic obstructive pulmonary disease (COPD). Option A is less relevant as weight loss is not typically associated with these blood count findings. Option C is more indicative of gastrointestinal bleeding rather than a respiratory issue. Option D focuses on dietary factors, which are less likely to cause such significant elevations in hemoglobin and hematocrit levels as seen in this case.
4. A 44-year-old with sickle cell anemia who says his eyes always look sort of yellow
- A. A 23-year-old with no previous health problems who has a nontender lump in the axilla
- B. A 50-year-old with early-stage chronic lymphocytic leukemia who reports chronic fatigue
- C. A 19-year-old with hemophilia who wants to learn to self-administer factor VII replacement
- D. A 44-year-old with sickle cell anemia who says his eyes always look sort of yellow
Correct answer: B
Rationale: Choice B is the correct answer because the scenario describes a 50-year-old with early-stage chronic lymphocytic leukemia who presents with chronic fatigue. Chronic lymphocytic leukemia commonly presents with symptoms like fatigue, weight loss, and enlarged lymph nodes. The other choices are less likely as they do not match the clinical presentation described in the scenario. Choice A describes a 23-year-old with a nontender lump in the axilla, which is more suggestive of a benign condition like a lipoma. Choice C describes a 19-year-old with hemophilia who wants to learn to self-administer factor VII replacement, which is unrelated to the symptoms of chronic lymphocytic leukemia. Choice D repeats the scenario, which is not relevant in selecting the appropriate answer.
5. Which collaborative problem will the nurse include in a care plan for a patient admitted to the hospital with idiopathic aplastic anemia?
- A. Potential complication: seizures
- B. Potential complication: infection
- C. Potential complication: neurogenic shock
- D. Potential complication: pulmonary edema
Correct answer: B
Rationale: The correct answer is B: Potential complication: infection. Patients with idiopathic aplastic anemia have pancytopenia, which puts them at a high risk for infections due to decreased production of all blood cells (red blood cells, white blood cells, and platelets). Infection is a significant concern in these patients. Choices A, C, and D are incorrect because seizures, neurogenic shock, and pulmonary edema are not typically associated with idiopathic aplastic anemia. While seizures can occur in some conditions that affect the brain, neurogenic shock is related to spinal cord injury, and pulmonary edema is more commonly seen in conditions like heart failure.
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