A nurse in an emergency department is caring for a preschooler who experienced a near drowning and has hypothermia. Which of the following actions should the nurse take?

A) Double-bag the client's trash before removing it from the room: While double-bagging is a precaution used in certain infections to prevent contamination, it is not necessary for influenza. Influenza spreads via respiratory droplets rather than contact with contaminated objects. Standard waste disposal methods are typically sufficient to manage the risk of contamination from trash.

B) Place the client in a negative air pressure room with 6 to 12 air exchanges per hour: Negative air pressure rooms are designed to contain airborne pathogens by preventing contaminated air from escaping the room. Diseases such as tuberculosis or measles require this level of isolation. However, influenza spreads through droplets that settle quickly rather than remaining airborne, making negative air pressure rooms unnecessary for influenza isolation.

C) Ensure all air in the client's room is filtered through a HEPA filter: HEPA (High-Efficiency Particulate Air) filters are used to trap airborne particles. For influenza, which is spread by larger respiratory droplets, such filtration is not needed. The droplets are too large to remain suspended in the air and are typically spread through close contact, rather than requiring air filtration.

D) Wear a surgical mask when within 1 m (3 ft) of the client: This is the most appropriate precaution. Influenza is primarily spread through respiratory droplets that can travel about 1 meter (3 feet) when a person coughs, sneezes, or talks. Wearing a surgical mask within this distance helps prevent inhaling these droplets, thus reducing the risk of transmission. This aligns with droplet precautions which are standard for managing influenza.

A) Fever: Myxedema coma is characterized by hypothermia rather than fever. The client with myxedema coma may experience a lowered body temperature, reflecting the severe hypothyroidism associated with this condition.

B) Hypernatremia: Hypernatremia, or elevated sodium levels, is a common finding in myxedema coma. This occurs due to impaired renal function and decreased aldosterone levels, leading to an imbalance in electrolytes, including sodium.

C) Hypertension: Typically, myxedema coma presents with hypotension rather than hypertension. The condition is associated with decreased cardiac output and low blood pressure, not elevated blood pressure.

D) Hypoglycemia: In myxedema coma, hypoglycemia is not typically expected. Instead, patients may experience hypoglycemia due to reduced metabolic rate and decreased glycogen stores. However, hyperglycemia is more commonly observed in other endocrine disorders, not specifically in myxedema coma.