ATI LPN
Timby's Introductory Medical-Surgical Nursing Thirteenth, North American Edition
Chapter 30 : Introduction to the Hematopoietic and Lymphatic Systems Questions
Question 1 of 5
The nurse observes that a client who had an arterial blood gas performed 30 minutes ago is still oozing blood from the puncture site. Pressure was held to the site for 5 minutes after the puncture and another 5 minutes when the site was still oozing. What factor does the nurse know will participate in the ability for the blood to clot?
Correct Answer: A
Rationale: Platelets participate in clotting blood. Leukocytes protect against infection. Erythrocytes transport oxygen, and albumin affects intravascular osmotic pressure.
Question 2 of 5
The nurse is reviewing laboratory studies that determine a client is deficient in copper. What does the nurse understand is the importance of copper in the body?
Correct Answer: C
Rationale: Copper is involved in the transfer of iron from storage to plasma. Folic acid and Bâ??â?? are essential for the maturation of red blood cells. Iron is the basic nutritional component of heme in hemoglobin. Vitamin B6 serves as a coenzyme in hemoglobin formation.
Question 3 of 5
The nurse is caring for three clients who have the following blood count values: Client A has 24,500/mm?³ white blood cells (WBCs), client B has 13.4 g/dL hemoglobin, and client C has a 250,000/mm?³ platelet count. Which statement correctly describes the condition of each client?
Correct Answer: B
Rationale: The normal leukocyte count is between 5000 and 10,000/mm?³. Client A has an increased number of leukocytes greater than 10,000/mm?³ and hence has leukocytosis. In adults, the normal amount of hemoglobin is 12.0 to 17.4 g/dL; therefore, client B has a normal hemoglobin count. A normal circulating platelet count is 150,000 to 350,000/mm?³ platelets; therefore, client C has a normal platelet count.
Question 4 of 5
A client is admitted to the emergency department with significant blood loss. The physician prescribes 2 units of packed red blood cells to be transfused immediately. Which blood groups would be compatible with his O Rh-positive blood group?
Correct Answer: A
Rationale: People with Rh-positive blood can receive Rh-positive or Rh-negative blood because a negative Rh indicates a missing Rh factor. Antibodies, immunoglobulins in plasma that inactivate any substance that is non-self, react with incompatible red blood cell antigens.
Therefore, people with type O blood are universal donors because they do not have antigens on the red cell membrane.
Therefore, the client can be transfused with either O Rh-positive or O Rh-negative blood.
Question 5 of 5
The nurse is caring for a client who is undergoing bone marrow aspiration to determine the blood cell formation status. What nursing intervention should the nurse provide to the client during the test?
Correct Answer: D
Rationale: When a client undergoes a bone marrow aspiration, the nurse assists the physician, supports the client during the procedure, and monitors the condition afterward. The client needs to be administered oral radioactive vitamin Bâ??â?? or a nonradioactive Bâ??â?? injection in case of the Schilling test, which helps in determining pernicious anemia and macrocytic anemia. Collecting urine for 24 to 48 hours after administering nonradioactive Bâ??â?? is also applicable to the Schilling test.