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 is a vitamin K-dependent coagulation factor because vitamin K is essential for the post-translational modification of certain glutamate residues on coagulation factors, including Factor X. Vitamin K helps these factors bind to calcium ions, which is necessary for their proper function in the coagulation cascade. Thromboplastin (A), also known as tissue factor, is not a vitamin K-dependent coagulation factor. Hageman factor (C), also known as Factor XII, and Proaccelerin (D), also known as Factor V, are not vitamin K-dependent factors either.
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 crucial nursing action is monitoring for bleeding, as this procedure can cause significant bleeding due to the penetration of bone. It is essential to assess for any signs of bleeding such as increased pain, swelling, bruising, or hematoma formation. Prompt identification and management of bleeding are vital to prevent complications such as hematoma formation or hemorrhage. Encouraging oral fluids (B) and administering analgesics (C) are important but not as critical as monitoring for bleeding. Monitoring the puncture site for infection (D) is also important but is a secondary concern compared to assessing for bleeding immediately post-procedure.
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: The correct answer is C: Follow the organization's verification process. This approach ensures patient safety by using a systematic verification process to match the blood product with the patient, including checking the patient's identification, verifying the order, and confirming the blood product before administration. Checking the patient's arm band (A) may not be sufficient for blood product verification. Checking the order on the medical record (B) is important but may not involve the necessary steps to ensure correct blood matching. Assuming the correct blood was provided (D) is dangerous and can lead to serious consequences if an error occurs.
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 the dye used in lymphangiography can cause bluish skin and urine for up to 2 days. This is a known side effect of the procedure and is not a cause for concern. Choice A is incorrect because dismissing the patient's concern without explanation is not appropriate. Choice B is incorrect because there is no need to notify the RN and physician immediately for this known side effect. Choice C is incorrect because the blue urine does not necessarily indicate abnormal results, but rather a normal reaction to the dye used.
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 prevent unnecessary bleeding. Placing in protective isolation (B) is not necessary for low platelet count. Wearing a mask (C) does not directly address the risk of bleeding. Documenting rectal temperatures (D) is unrelated to managing thrombocytopenia.