ATI RN
ATI Hematologic System Test Questions
Question 1 of 5
In iron deficiency anemia there is characteristically
Correct Answer: B
Rationale: Step-by-step rationale: 1. Iron deficiency leads to decreased hemoglobin synthesis, resulting in smaller red blood cells. 2. Mean corpuscular volume (MCV) measures the average size of red blood cells. 3. In iron deficiency anemia, MCV is low due to the smaller red blood cells. 4. Therefore, choice B is correct as it reflects the characteristic feature of iron deficiency anemia. Summary: A: Atrophic gastritis is seen in pernicious anemia, not iron deficiency anemia. C: Total iron binding capacity is increased, not reduced, in iron deficiency anemia. D: Megaloblastic changes in the bone marrow are seen in megaloblastic anemias, 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 plays a crucial role in filtering and removing old or damaged red blood cells from circulation. When the spleen is removed, this function is compromised, leading to a decrease in the body's ability to clear out these cells efficiently. This can result in an increased risk of anemia and other complications related to the buildup of old red blood cells in the bloodstream. A: Filtration of waste products - While the spleen does play a role in filtering blood, its primary function is related to red blood cells, not waste products. C: Clearance of mucous in the tracheobronchial tree - This function is primarily carried out by the respiratory system, particularly the cilia and mucous membranes in the airways, not the spleen. D: Facilitation of glucose to be used by the cell for energy - This function is primarily related to the pancreas and insulin production, not the
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: Correct Answer: A (Vital signs) Rationale: Monitoring vital signs during a blood transfusion is crucial to detect any adverse reactions promptly. Changes in blood pressure, pulse rate, temperature, and respiratory rate can indicate a potential reaction. By assessing vital signs, the nurse can intervene promptly if there is any sign of an adverse reaction, such as fever, hypotension, tachycardia, or shortness of breath. Summary of Incorrect Choices: B: Skin turgor is not directly related to detecting a reaction during a blood transfusion. C: Bowel sounds are not indicative of a reaction during a blood transfusion. D: Pupil reactivity is not relevant for monitoring during a blood transfusion.
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 range of 4000-11000/mm³. The normal WBC count indicates the body's ability to fight infections and maintain immunity. The other choices are incorrect because: A: The patient does not necessarily have an infection based solely on the WBC count. B: The patient is not necessarily at risk for infection with a normal WBC count. C: There is no indication of a hematological disorder based on the WBC count within the normal range.
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 therapy is typically considered to be 1.5 to 2.0 times the normal control value for activated partial thromboplastin time (aPTT). This range ensures adequate anticoagulation to prevent clot formation without increasing the risk of bleeding. Options A, B, and D are incorrect because they provide ranges that are either too short or too long for the therapeutic goal of heparin therapy. Option A (2.5 to 9.5 minutes) and Option D (2.0 to 3.0 times normal) are outside the typical therapeutic range for heparin, indicating subtherapeutic and supratherapeutic levels, respectively. Option B (9.5 to 11.3 seconds) is also incorrect as it reflects a range for prothrombin time (PT) rather than aPTT.