ATI RN
ATI Hematologic System Test Questions
Question 1 of 5
In iron deficiency anemia there is characteristically
Correct Answer: B
Rationale: The correct answer is B: A low mean corpuscular volume. In iron deficiency anemia, there is a decreased amount of iron available for hemoglobin synthesis, leading to smaller and paler red blood cells. This results in a low mean corpuscular volume (MCV). Atrophic gastritis (choice A) is associated with vitamin B12 deficiency anemia, not iron deficiency anemia. Choice C (reduced total iron binding capacity) is incorrect because in iron deficiency anemia, there is an increased total iron binding capacity due to the body's attempt to capture more iron. Megaloblastic changes in the bone marrow (choice D) are seen in megaloblastic anemia, not iron deficiency anemia.
Question 2 of 5
A patient with abdominal injuries from a motor vehicle crash is scheduled for surgery to remove the spleen. What bodily function will be affected by the removal of this organ?
Correct Answer: B
Rationale: The correct answer is B: Removal of old red blood cells from circulation. The spleen is responsible for filtering and removing old or damaged red blood cells from the bloodstream. When the spleen is removed, this function is compromised, leading to a decreased ability to clear out old red blood cells. This can result in an increased risk of anemia and other complications related to the breakdown of red blood cells. Choices A, C, and D are incorrect: A: Filtration of waste products - The spleen primarily filters blood cells, not waste products. C: Clearance of mucous in the tracheobronchial tree - This function is mainly carried out by the respiratory system, not the spleen. D: Facilitation of glucose to be used by the cell for energy - This is a function of the pancreas and insulin, not the spleen.
Question 3 of 5
The nurse is staying with a patient who has been started on a blood transfusion. Which assessment should the nurse perform during a blood product infusion to detect a reaction?
Correct Answer: A
Rationale: The correct answer is A: Vital signs. During a blood transfusion, the nurse should monitor the patient's vital signs regularly to detect any signs of a transfusion reaction, such as fever, chills, rash, or hypotension. Vital signs provide crucial information about the patient's overall condition and can help the nurse identify and respond promptly to any adverse reactions. Skin turgor (B), bowel sounds (C), and pupil reactivity (D) are not directly related to monitoring for transfusion reactions and are not sensitive indicators of an adverse reaction during a blood transfusion. Monitoring vital signs is essential for patient safety and early detection of any complications during the transfusion process.
Question 4 of 5
The nurse is caring for a patient who has a white blood cell (WBC) count of 8000/mm³. What concern should the nurse have about this finding?
Correct Answer: D
Rationale: The correct answer is D because a WBC count of 8000/mm³ falls within the normal reference range of 4000-11000/mm³. Therefore, there is no immediate concern regarding infection or hematological disorder. Choice A is incorrect because a normal WBC count does not indicate infection. Choice B is incorrect as the count is within the normal range, not indicating increased infection risk. Choice C is incorrect as a normal WBC count does not suggest a hematological disorder.
Question 5 of 5
The nurse is reviewing the activated partial thromboplastin time for a patient receiving heparin. Which value indicates that the medication is within the therapeutic range?
Correct Answer: C
Rationale: The correct answer is C (1.5 to 2.0 times normal) because the therapeutic range for heparin is typically considered to be 1.5 to 2.5 times the normal value of activated partial thromboplastin time (aPTT). This range ensures adequate anticoagulation without increasing the risk of bleeding. Options A, B, and D are incorrect because they do not accurately reflect the therapeutic range for heparin. Option A provides a range in minutes, which is not a standard unit for aPTT measurement. Option B provides a range in seconds, which is too narrow for the therapeutic range of heparin. Option D provides a range in multiples of normal, but the upper limit of 3.0 times normal is higher than the typical upper limit of the therapeutic range for heparin.