A common medication treatment for Parkinson's disease is levodopa/carbidopa combination medication. The nurse knows that this medication is used because which of the following neurotransmitter is decreased in a person with Parkinson's disease?

A. Dopamine is the neurotransmitter that is decreased in individuals with Parkinson's disease. Parkinson's disease is characterized by the degeneration of dopamine-producing neurons in the brain, leading to motor symptoms such as tremors, rigidity, and bradykinesia. Levodopa, a precursor to dopamine, is used to increase dopamine levels in the brain and alleviate symptoms.

B. Norepinephrine is involved in mood regulation and other functions, but it is not the primary neurotransmitter involved in Parkinson's disease.

C. Serotonin is a neurotransmitter that affects mood, sleep, and appetite, but it is not the primary neurotransmitter involved in Parkinson's disease.

D. Glutamate is an excitatory neurotransmitter, but its role is more related to other conditions like neurodegenerative diseases such as ALS, rather than Parkinson's disease.

A. Turn the client to the side is the correct action to prevent aspiration, but restraining the client is not appropriate. Restraint can cause injury and should never be used during a seizure. The client should be allowed to move freely during the seizure, and positioning them on their side helps maintain an open airway and prevent aspiration.

B. Time the duration of the seizure is essential for monitoring the length of the seizure. This helps the nurse determine if the seizure is prolonged or if medical intervention is necessary.

C. Administer supplemental oxygen to the client is appropriate if the client is experiencing apnea or breathing difficulties during the seizure. The nurse should ensure the oxygen equipment is ready and functioning to provide supplemental oxygen if needed.

D. Placing a tongue depressor in the client's mouth is not recommended during a seizure. This can cause injury to the client’s mouth, teeth, or airway and does not prevent biting the tongue. Instead, the nurse should focus on protecting the client's airway and preventing aspiration.