Practice HESI Fundamentals Exam

Correct Answer: A

Rationale: The correct answer is A: Absence of a pulse. Prior to initiating chest compressions during CPR, it is essential to confirm the absence of a pulse. Chest compressions are indicated when there is no detectable pulse as it signifies cardiac arrest. Checking for a pulse is a critical step to ensure that CPR is performed on individuals who truly require it. Choices B, C, and D are incorrect because focusing on the presence of a pulse, respiratory rate, or blood pressure before starting chest compressions can delay life-saving interventions in a person experiencing cardiac arrest.

Correct Answer: A

Rationale: The correct answer is A: Absence of a pulse. Prior to initiating chest compressions during CPR, it is essential to confirm the absence of a pulse. Chest compressions are indicated when there is no detectable pulse as it signifies cardiac arrest. Checking for a pulse is a critical step to ensure that CPR is performed on individuals who truly require it. Choices B, C, and D are incorrect because focusing on the presence of a pulse, respiratory rate, or blood pressure before starting chest compressions can delay life-saving interventions in a person experiencing cardiac arrest.

Correct Answer: A

Rationale: The highest priority during an eye irrigation for a client exposed to smoke and ash is wearing gloves during the procedure. This action is crucial as it helps prevent contamination and protects both the client and the nurse. Using a sterile solution is important but not as critical as ensuring the nurse's safety by wearing gloves. Irrigating from the inner to the outer canthus and positioning the client's head properly are essential steps in eye irrigation, but they are not the highest priority in this scenario compared to ensuring infection control by wearing gloves.

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.

Correct Answer: C

Rationale: The correct answer is C because for a 24-hour urine collection, the first void is discarded, and all subsequent urine should be saved. Choice A is incorrect because bowel movements do not contribute to a urine collection. Choice B indicates a single specimen rather than continuous collection over 24 hours. Choice D is incorrect as it incorrectly suggests rushing the test by drinking excessively.