Correct Answer: B

Rationale: Verifying the patient's identity before administration is a critical step to ensure that the correct blood product is given to the right patient, thereby preventing transfusion errors. While ensuring proper documentation of the transfusion (choice A) is important for record-keeping, verifying patient identity (choice B) directly addresses the risk of administering blood to the wrong patient. Monitoring for allergic reactions or transfusion reactions (choice C) and monitoring the patient's vital signs during transfusion (choice D) are also essential considerations during blood product administration, but verifying patient identity takes precedence to prevent potentially life-threatening errors.

Correct Answer: B

Rationale: The correct answer is 2 tablets. Each tablet of aspirin is 325mg. To achieve the required dose of 650mg, the nurse should administer 2 tablets. Choice A (1 tablet) is incorrect because it would only provide 325mg, which is half the required dose. Choices C (3 tablets) and D (4 tablets) are incorrect as they would exceed the required dose.

Correct Answer: A

Rationale: The correct answer is A: "Blockage in a blood vessel supplying the brain." Ischemic stroke is caused by a blockage in a blood vessel supplying the brain, leading to reduced blood flow. Hemorrhagic stroke, on the other hand, is caused by bleeding in the brain due to a ruptured blood vessel. Choices B, C, and D are incorrect. Administering thrombolytics, avoiding anticoagulants, and preparing for surgery are specific management strategies that may apply to ischemic or hemorrhagic strokes but do not define the main differences between the two types of strokes.

Correct Answer: B

Rationale: The correct answer is B: Tremors and increased blood pressure. During opioid withdrawal, individuals commonly experience symptoms such as tremors, increased blood pressure, and restlessness. Choice A, which suggests bradycardia and hypotension, is incorrect as opioid withdrawal often leads to tachycardia (rapid heart rate) and increased blood pressure. Choice C, severe muscle weakness and fatigue, is not a typical manifestation of opioid withdrawal. Choice D, severe hallucinations and delusions, is more characteristic of conditions like delirium tremens associated with alcohol withdrawal, rather than opioid withdrawal.

Correct Answer: B

Rationale: An aPTT of 70 seconds is within the therapeutic range for a client receiving heparin therapy. The activated partial thromboplastin time (aPTT) is the most sensitive test to monitor heparin therapy. A therapeutic aPTT range for a client receiving heparin is usually 1.5 to 2.5 times the control value. Choices A, C, and D are not indicators of a therapeutic response to heparin therapy. PT measures the extrinsic pathway of coagulation and is not specific to monitoring heparin therapy. Platelet count is important to monitor for heparin-induced thrombocytopenia, but it does not indicate the therapeutic response to heparin therapy. INR is used to monitor warfarin therapy, not heparin therapy.