Practice HESI Fundamentals Exam

Correct Answer: B

Rationale: The correct answer is B because sequential compression devices are utilized to enhance circulation and prevent clot formation in the legs. Option A is incorrect because these devices are not primarily meant to prevent skin sores. Option C is incorrect because the devices do not directly address muscle weakness. Option D is incorrect as the main purpose of sequential compression devices is not related to joint health.

Correct Answer: A

Rationale: The correct action for the nurse to take in this situation is to carefully remove the gloves and follow with hand hygiene. This is important to prevent potential contamination and maintain infection control practices. Option B is incorrect because cleaning hands later may lead to the spread of potential contaminants. Option C is unnecessary as starting over is not required if proper hand hygiene is performed. Option D is not sufficient in ensuring proper hygiene after a blood spill, as hand sanitizer may not effectively remove all contaminants.

Correct Answer: A

Rationale: To calculate the infusion rate, divide the total volume (750 mL) by the total time (7 hr). 750 � 7 ≈ 107 mL/hr. Choice A is correct because it accurately calculates the infusion rate based on the total volume and time. Choices B, C, and D are incorrect as they do not reflect the correct calculation for the infusion rate in this scenario.

Correct Answer: B

Rationale: The correct dosing schedule for the client to follow is to take the medication at 8 a.m., 4 p.m., and midnight. This timing spaces the doses evenly over the waking hours, ensuring consistent therapeutic levels of the medication. Choice A (9 a.m., 1 p.m., and 5 p.m.) does not evenly distribute the doses throughout the day. Choices C (Before breakfast, before lunch, and before dinner) and D (With breakfast, with lunch, and with dinner) do not provide the required frequency of dosing needed for optimal therapeutic effect.

Correct Answer: A

Rationale: The correct answer is A: Hemolytic. Hemolytic reactions can lead to flank pain and hemoglobinuria, as the body breaks down the transfused red blood cells. In hemolytic reactions, the immune system attacks and destroys the transfused red blood cells, causing the release of hemoglobin into the bloodstream and urine. This results in reddish-brown urine, indicating hemoglobinuria. Allergic reactions typically present with symptoms like itching, hives, or rash. Febrile reactions are characterized by fever, chills, and rigors. TRALI is a rare but serious transfusion reaction that manifests as acute respiratory distress following a transfusion, not flank pain and hemoglobinuria.