A nurse in an assisted-living facility is reinforcing teaching with staff members about preparing for an external chemical disaster. Which of the following instructions should the nurse include?

Ensuring the device is kept below the level of the client's chest is important to ensure that the drainage system functions properly by allowing the fluid and air to flow downhill. Placing the device below the level of the chest helps facilitate gravity drainage.

Continuous suction is required for proper functioning of the chest tube drainage system. Clamping the chest tube can disrupt the suction and impede the removal of air or fluid from the pleural space. Only in specific circumstances, such as when changing the drainage system or assessing for air leaks, may the healthcare provider request a temporary clamping of the chest tube.

Positioning the client semi-Fowler's, with the head of the bed elevated, can help promote lung expansion and improve oxygenation. The specific positioning may vary depending on the client's condition and the healthcare provider's recommendations.

The nurse should empty the collection chamber as per the facility's protocol, which typically includes monitoring the drainage and emptying it when it reaches a certain level. Regular emptying of the collection chamber helps maintain proper functioning of the chest tube system and allows for accurate measurement of drainage output.

Monitoring the infant's lymphocyte count is important in evaluating the immune function of the infant. HIV primarily affects the immune system, including lymphocytes. Monitoring the lymphocyte count helps assess the progression of the disease and the effectiveness of treatment.

Exchange transfusions are not typically used in the management of HIV. They are primarily performed in conditions like severe neonatal jaundice or blood disorders, but not for the treatment of HIV.

Granulocyte colony-stimulating factor (G-CSF) is a medication used to stimulate the production of white blood cells called granulocytes. While G-CSF can be used in certain situations, such as to counteract the side effects of certain chemotherapy drugs, it is not a standard treatment for HIV in infants.

Droplet precautions are typically implemented for infectious diseases that spread through respiratory droplets, such as influenza or respiratory syncytial virus (RSV). HIV does not spread through respiratory droplets, so initiating droplet precautions would not be necessary in the care of an infant with HIV.