HESI Fundamentals Test Bank

Correct Answer: A

Rationale: The correct answer is to place a client with TB in a negative pressure room. Tuberculosis (TB) is an airborne infectious disease, and placing the client in a negative pressure room helps prevent the spread of the infection by containing and filtering the air within the room. Standard precautions (Choice B) are important for preventing the spread of infection in general, but specific precautions are needed for airborne diseases like TB. Placing the client in a private room (Choice C) may not provide adequate ventilation and containment of airborne pathogens. Using barrier precautions (Choice D) alone is not sufficient for preventing the airborne transmission of TB.

Correct Answer: A

Rationale: In a scenario where a person is unconscious and there is an indication of a possible heart attack, the immediate priority for the nurse should be to administer cardiac compressions. This action helps maintain circulation and ensures oxygenated blood reaches vital organs until the AED is available. Checking for a pulse or performing rescue breaths may delay essential circulation support, and attaching AED pads should follow the initial step of administering compressions to maximize the chances of a successful resuscitation.

Correct Answer: C

Rationale: The correct answer is 'C: Sore throat.' Oxygen toxicity can manifest with symptoms like a sore throat, cough, chest pain, difficulty breathing, and fatigue. However, a sore throat can be an early indicator of oxygen toxicity and should prompt immediate attention. Nasal congestion, cough, and fatigue are not specific indicators of oxygen toxicity but could be related to other factors in a client with COPD receiving oxygen therapy.

Correct Answer: D

Rationale: The correct answer is D: "I will replace any IV catheter when I suspect contamination during insertion." This statement demonstrates an understanding of preventive strategies for IV infections. Suspecting and replacing any contaminated IV catheter during insertion is crucial to prevent infections and ensure patient safety. Choices A, B, and C are incorrect because leaving the IV catheter in place after completing antibiotics, reusing the same IV catheter, and disconnecting the IV infusion without proper precautions can increase the risk of infections. Therefore, option D is the best choice for preventing IV infections.

Correct Answer: A

Rationale: An elevated white blood cell count (WBC 15,000/mm�) is a common indicator of infection as the body increases WBC production to fight off pathogens. In conditions like infections, inflammation, or stress, the WBC count can rise. The other options, hemoglobin, platelet count, and sodium levels, are not typically specific indicators of infection. Hemoglobin measures the oxygen-carrying capacity of red blood cells, platelet count assesses clotting ability, and sodium levels indicate electrolyte balance.