A nurse is providing discharge teaching to a client who has a hearing impairment and a new hearing aid. Which of the following client statements indicates an understanding of the teaching?

A) Administer dantrolene sodium IV: Dantrolene sodium is the treatment of choice for malignant hyperthermia. It acts as a muscle relaxant by inhibiting calcium release from the sarcoplasmic reticulum in skeletal muscles, which helps to halt the hypermetabolic crisis.

B) Monitor client for rapid decrease in heart rate: While monitoring vital signs is essential, a rapid decrease in heart rate is not a typical manifestation of malignant hyperthermia. The nurse should primarily focus on interventions to reduce hyperthermia and stabilize the client's condition.

C) Infuse chilled lactated Ringer's IV: Infusing chilled IV fluids can help lower the body temperature in malignant hyperthermia. However, this intervention is supportive and secondary to the administration of dantrolene sodium, which directly addresses the underlying pathophysiology.

D) Provide oxygen at 12 L/min via Venturi mask: Providing high-flow oxygen is necessary to manage hypoxia and metabolic acidosis associated with malignant hyperthermia. Nonetheless, this action is secondary to administering dantrolene sodium, which is crucial to stopping the hyperthermic crisis.

A) Use petroleum jelly on a cotton ball to plug your ear when shampooing.
This technique helps prevent water from entering the ear during activities like showering. While it is useful for keeping the ear dry, it does not directly address preventing trauma or further hearing impairment post-surgery.

B) Clean dried blood in your ear canal with a cotton-tipped applicator.
Using cotton-tipped applicators can cause damage to the delicate ear canal and potentially disturb the surgical site. This action increases the risk of infection and trauma, potentially worsening hearing loss instead of preventing it.

C) Avoid blowing your nose for 1 month after surgery.
Refraining from nose blowing is essential because it prevents pressure changes that could disrupt the surgical repair. Such pressure changes can lead to complications like graft displacement, which can cause trauma and impair hearing.

D) Notify your provider if you have popping or crackling sensations in the affected ear.
Popping or crackling can be common as the ear heals and adjusts. These sensations typically do not indicate a problem unless accompanied by pain or other symptoms. Thus, while monitoring is important, it is not a primary preventative measure for trauma or hearing issues.