ATI LPN
Hematologic System Questions Questions
Question 1 of 5
Which of the following pairs is mismatched?
Correct Answer: A
Rationale: Step-by-step rationale: 1. Lymphocytes are part of the adaptive immune response, not innate. 2. Natural killer cells are part of the innate immune response and kill virus-infected cells. 3. Macrophages perform phagocytosis and kill microorganisms, matching their function. 4. Erythrocytes are red blood cells responsible for oxygen transport, matching their function. Therefore, A is the mismatched pair as lymphocytes belong to the adaptive immune response, not innate.
Question 2 of 5
The nurse is aware that blood type O is considered the universal donor. This means all patients can receive blood type O. Knowing this, which of the following statements is correct. (Select one that does not apply)
Correct Answer: D
Rationale: The correct answer is D because the statement is incorrect. A client with blood type AB cannot receive blood type ABO, as ABO is not a specific blood type. Blood type ABO includes blood types A, B, AB, and O. Therefore, the statement is nonsensical and misleading. Blood type AB can receive blood types A and B, but not ABO as a whole. Choices A, B, and C are incorrect because they correctly state that a client with blood type AB can receive blood types A, B, and O, respectively.
Question 3 of 5
Which sickle cell disorder causes the most severe symptoms?
Correct Answer: A
Rationale: Step 1: Sickle cell anemia is the correct answer because it results from inheriting two abnormal hemoglobin genes causing severe symptoms. Step 2: Sickle cell-thalassemia is incorrect because it involves a combination of sickle cell gene and thalassemia gene but generally milder symptoms. Step 3: Sickle cell-HbC disease is incorrect as it involves a different type of abnormal hemoglobin gene and typically milder symptoms compared to sickle cell anemia. Step 4: Sickle cell trait is incorrect because it results from inheriting one abnormal hemoglobin gene and usually has no or mild symptoms.
Question 4 of 5
A nurse is reviewing a client's repeat laboratory results 4 hr after administering fresh frozen plasma (FFP). Which of the following laboratory results should the nurse review?
Correct Answer: A
Rationale: The correct answer is A: Prothrombin time. Prothrombin time measures the time it takes for blood to clot, which is crucial after administering fresh frozen plasma (FFP) to assess its effectiveness in improving clotting factors. Hemoglobin level, platelet count, and white blood cell count are not directly affected by FFP administration and would not provide specific information on clotting status.
Question 5 of 5
A nurse is completing a medication history for a client who reports using fish oil as a dietary supplement. Which of the following substances in fish oil should the nurse recognize as a health benefit to this client?
Correct Answer: A
Rationale: The correct answer is A: Omega-3 fatty acids. Fish oil is rich in omega-3 fatty acids, which have numerous health benefits such as reducing inflammation, improving heart health, and promoting brain function. Omega-3 fatty acids are essential for overall health and well-being. Explanation of other choices: B: Vitamin D - While important for bone health, vitamin D is not the primary substance in fish oil known for its health benefits. C: Calcium - Calcium is essential for bone health, but it is not the main substance found in fish oil. D: Iron - Iron is crucial for oxygen transport in the body but is not typically found in fish oil in significant amounts.