ATI RN
Hematological System Questions
Question 1 of 5
Which of the following is a vitamin K-dependent coagulation factor?.
Correct Answer: B
Rationale: The correct answer is B: Stuart Prower factor, also known as Factor X. This coagulation factor is dependent on vitamin K for its synthesis. Vitamin K is essential for the post-translational modification of certain coagulation factors, including Factor X. Thromboplastin (A) is not a coagulation factor, but rather a tissue factor involved in the initiation of coagulation. Hageman factor (C) is Factor XII, which is not vitamin K-dependent. Proaccelerin (D) is also known as Factor V and is not vitamin K-dependent. In summary, only Stuart Prower factor (Factor X) is a vitamin K-dependent coagulation factor among the choices provided.
Question 2 of 5
The nurse is caring for a patient having a bone marrow biopsy. What nursing action is the most important following the biopsy?
Correct Answer: A
Rationale: The correct answer is A: Observe for bleeding. After a bone marrow biopsy, the most important nursing action is to monitor for bleeding, as the patient is at risk for hemorrhage due to the invasive nature of the procedure. Observing for bleeding includes assessing the dressing, vital signs, and the puncture site for any signs of hematoma or excessive bleeding. Encouraging oral fluids (B) helps prevent dehydration but is not the most critical post-biopsy action. Administering an analgesic (C) for pain is important for patient comfort but does not address the immediate risk of bleeding. Monitoring for infection (D) is important but is not the priority immediately following the biopsy.
Question 3 of 5
A patient is prescribed to receive 2 units of packed red blood cells. What approach should the nurse use to ensure that the correct blood will be provided to this patient?
Correct Answer: C
Rationale: Correct Answer: C Rationale: 1. Following the organization's verification process ensures accuracy in blood transfusion. 2. This process involves multiple checks to confirm the correct blood for the patient. 3. Checking the patient's arm band (A) and medical record order (B) are initial steps but may not guarantee accuracy. 4. Assuming correct blood was provided (D) is risky and can lead to serious consequences.
Question 4 of 5
A patient who underwent lymphangiography the day before asks the licensed practical nurse (LPN), “Why does my urine look blue?†What should the LPN respond to this patient's concern?
Correct Answer: D
Rationale: The correct answer is D because lymphangiography involves injecting a dye into the lymphatic system, which can cause the urine to appear blue temporarily. The LPN should reassure the patient that this is a normal and expected side effect of the procedure. Choice A is incorrect as it lacks explanation and may not address the patient's concern. Choice B is unnecessary as there is no urgent need to notify the RN and physician. Choice C is incorrect because blue urine does not necessarily indicate abnormal results, but rather a common side effect of the dye used in the procedure.
Question 5 of 5
A patient has a platelet count of 75,000 /mm³. What action should the nurse take to support this patient?
Correct Answer: A
Rationale: The correct action is to restrict blood draws. With a platelet count of 75,000 /mm³, the patient is at risk for bleeding due to thrombocytopenia. Restricting blood draws helps minimize the risk of bleeding from puncture sites. Placing the patient in protective isolation (B) is unnecessary for low platelet count. Wearing a mask (C) is not directly related to platelet count. Documenting rectal temperatures (D) is not a priority when managing thrombocytopenia.