A nurse in the Medical-Surgical unit is caring for a client who has had an allogeneic hematopoietic stem-cell transplant. Which of the following infection-control precautions should the nurse use while caring for this client?

The correct answer is: d. Left fifth intercostal space at the midclavicular line.

Choice A: Left fourth intercostal space at the sternal border

The fourth intercostal space at the sternal border is not the typical location for the Point of Maximal Impulse (PMI). This area is more commonly associated with the tricuspid valve auscultation point. The PMI is usually found more laterally and inferiorly.

Choice B: Left third intercostal space at the sternal border

The third intercostal space at the sternal border is also not the correct location for the PMI. This area is generally used for auscultating the pulmonic valve. The PMI is located further down and towards the midclavicular line.

Choice C: Left second intercostal space at the midclavicular line

The second intercostal space at the midclavicular line is typically where the aortic valve is auscultated. The PMI is not found this high up on the chest.

Choice D: Left fifth intercostal space at the midclavicular line

This is the correct location for palpating the Point of Maximal Impulse (PMI). The PMI is usually located at the apex of the heart, which is found at the left fifth intercostal space along the midclavicular line. This is where the left ventricle is closest to the chest wall and can be felt most strongly during systole.

Choice A rationale:

Placing the client in airborne isolation is a priority because measles is highly contagious and spread through airborne droplets. Airborne precautions are necessary to prevent the transmission of pathogens that can remain suspended in the air for longer periods. Measles is known for its high infectivity, and isolating the client in a negative pressure room equipped with HEPA filtration can help prevent the spread of the virus to other patients and healthcare workers.

Choice B rationale:

While advising family members not to bring flowers into the room is a reasonable infection control measure, it is not the priority action in this scenario. The immediate concern is to prevent the spread of the highly contagious measles virus through airborne transmission.

Choice C rationale:

Obtaining a sputum sample for culture is not the priority action in this situation. Measles is a viral infection, and sputum cultures are typically used to identify bacterial infections. Additionally, the primary mode of transmission for measles is through airborne droplets, so preventing its spread takes precedence over obtaining a sputum sample.

Choice D rationale:

Placing the client on contact precaution is not the correct choice for managing measles. Measles is primarily transmitted through the airborne route, so airborne precautions, not contact precautions, are necessary to prevent its transmission.