ATI RN
ATI Hematologic System Test Questions
Question 1 of 5
A nurse is preparing to assist with a bone marrow biopsy. Which anatomical site should the nurse anticipate will be used to obtain the specimen?
Correct Answer: C
Rationale: The correct answer is C: Posterior iliac crest. A bone marrow biopsy is commonly performed at the posterior iliac crest because it provides easy access to the bone marrow. This site has a high concentration of red bone marrow, making it an ideal location for obtaining a bone marrow specimen. The iliac crest is also a flat and easily accessible surface, which allows for safe and efficient insertion of the biopsy needle. Ribs (A) are not typically used due to the risk of puncturing the lungs. The humerus (B) is not a common site for bone marrow biopsy. Long bones in the legs (D) are not typically used due to the difficulty in accessing the bone marrow at those sites.
Question 2 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 3 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 4 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.
Question 5 of 5
The nurse assesses a patient who has numerous petechiae on both arms. Which question should the nurse ask the patient?
Correct Answer: A
Rationale: Correct Answer: A: Do you take salicylates? Rationale: 1. Petechiae are tiny red or purple spots caused by bleeding under the skin. 2. Salicylates (like aspirin) can cause bleeding issues leading to petechiae. 3. Asking about salicylate use helps identify a potential cause for the petechiae. Summary of Incorrect Choices: B: Oral contraceptives are not typically associated with petechiae. C: Antiseizure drugs do not commonly cause petechiae. D: Antihypertensive drugs are not known to be a common cause of petechiae.