ATI LPN
Questions on the Immune System Questions
Question 1 of 5
Which blood cell test is associated with risk of spontaneous hemorrhage if its counts fall below 10 x 10^9 /L?
Correct Answer: A
Rationale: Platelet count is the correct answer. Platelets are responsible for blood clotting, and a count below 10 x 10^9 /L can lead to spontaneous hemorrhage due to impaired clot formation. Hemoglobin, WBC, and RBC indices are not directly related to clotting function and do not pose the same risk of spontaneous hemorrhage.
Question 2 of 5
A nurse is caring for a client who has hemophilia. The client reports pain and swelling in a joint following an injury. Which of the following actions should the nurse take?
Correct Answer: A
Rationale: Correct Answer: A Rationale: 1. Hemophilia is a bleeding disorder due to missing clotting factors. 2. Pain and swelling in a joint indicate internal bleeding. 3. Replacement of the missing clotting factor is crucial to stop bleeding. 4. Administering aspirin can worsen bleeding due to its antiplatelet effects. 5. Applying heat can increase bleeding by dilating blood vessels. 6. Elevating the joint alone may not address the underlying bleeding issue.
Question 3 of 5
A nurse is preparing to transfuse a unit of packed red blood cells (RBCs) to a client who has anemia. Which of the following actions should the nurse take first?
Correct Answer: A
Rationale: The correct action is A: Witness the informed consent. This is the first step in the transfusion process to ensure the client's autonomy and understanding of the procedure. Without informed consent, the nurse cannot proceed with the transfusion. Checking the IV site (B) is important but not the first step. Verifying blood type (C) is crucial but can be done after obtaining consent. Priming the tubing (D) is necessary before starting the transfusion, but it comes after obtaining consent.
Question 4 of 5
Which medication is a tumor necrosis factor blocker?
Correct Answer: B
Rationale: The correct answer is B: Adalimumab. Adalimumab is a tumor necrosis factor (TNF) blocker used to treat autoimmune diseases like rheumatoid arthritis and Crohn's disease. It works by inhibiting TNF, a key inflammatory cytokine. Methotrexate (A) is an immunosuppressant, Leflunomide (C) is a disease-modifying antirheumatic drug, and Prednisone (D) is a corticosteroid. These medications work differently and are not TNF blockers.
Question 5 of 5
What is a consideration for patients taking colchicine?
Correct Answer: A
Rationale: The correct answer is A because colchicine commonly causes gastrointestinal (GI) upset as a side effect. This is due to its mechanism of action on the gastrointestinal tract. Retinal damage (B), bone marrow suppression (C), and hepatotoxicity (D) are not commonly associated with colchicine use, making them incorrect choices. It's crucial to monitor patients for GI symptoms when taking colchicine to ensure their safety and manage any adverse effects promptly.