In administering a calcium channel blocker to a patient diagnosed with primary hypertension, the nurse understands this is due to which mechanism of action of this medication?

A. Aspirin is not recommended for children due to the risk of Reye's syndrome, a serious condition that can occur when aspirin is given to children recovering from viral infections. Instead, acetaminophen or ibuprofen is preferred for fever management in children. Therefore, this option is not appropriate.
B. Nasopharyngitis is typically caused by viral infections, and antibiotics are ineffective against viruses. Antibiotics may be prescribed if a bacterial infection is diagnosed, but this is not the standard treatment for nasopharyngitis.
C. While vaccinations are crucial for preventing certain illnesses, there is no specific vaccine for nasopharyngitis, which is caused by various viruses. However, vaccinations for other respiratory illnesses (like influenza) can help reduce the risk of complications. This statement may cause confusion since it implies a direct preventive measure for nasopharyngitis itself.
D. Teaching children about proper hand hygiene is essential, as handwashing can significantly reduce the transmission of viruses that cause nasopharyngitis and other infections.

A. It is important to place a surgical mask on the patient when transporting them to minimize the risk of spreading TB droplets in the environment. This practice helps reduce transmission during transport.
B. TB is primarily transmitted via airborne particles, not droplets. Therefore, patients with active TB should be placed on airborne precautions, not droplet precautions. Airborne precautions include the use of specialized masks and a negative airflow room to prevent the spread of infectious aerosols.
C. While a surgical mask is not adequate for protecting healthcare workers from TB, they should wear a fitted N95 respirator or a powered air-purifying respirator (PAPR) when providing care to a patient with active TB. A surgical mask does not filter out the small particles that can carry TB bacteria.
D. Patients with active TB should be placed in a private room that has negative pressure ventilation. This design helps prevent airborne TB particles from escaping into other areas of the healthcare facility, protecting other patients and staff.
E. Eye protection is recommended when collecting sputum samples from a patient with active TB, as it helps protect against potential splashes of respiratory secretions that may contain infectious droplets. This is particularly important during procedures that may aerosolize the bacteria.