4 Amphetamine is a central nervous system stimulant. A patient who is administered anesthesia may have difficulty breathing due to respiratory depression. To prevent discomfort and provide relief from breathing difficulty, amphetamine must be administered to the patient. Adrenergic drugs such as dobutamine may cause vasoconstriction, but may not help prevent respiratory depression. Barbiturates such as phenobarbital and benzodiazepines such as diazepam are central nervous system depressants. Therefore they should not be administered because they aggravate respiratory depression.

The nurse is assessing a patient who has been administered anesthesia. The nurse finds that the patient has difficulty breathing. Which drug does the nurse anticipate to be administered to the patient to provide relief from breathing difficulty? 1 Diazepam 2 Dobutamine 3 Phenobarbital 4 Amphetamine More test answers on https://studyhippo.com/pharmacology-chapter-17-substance-abuse/

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Central Nervous System Depressants Flashcards, test questions and answers

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What is Central Nervous System Depressants?

Central Nervous System (CNS) depressants are a class of drugs that reduce activity in the CNS, leading to sedative-hypnotic effects. These drugs are used for medical and recreational purposes, but can have potentially dangerous side effects when abused or misused. CNS depressants work by slowing down the activity of nerve cells in the brain and spinal cord. At low doses they can produce calming, sedative-like effects, while at high doses they can cause respiratory depression, unconsciousness and even death. Common CNS depressants include benzodiazepines (such as Valium), barbiturates (such as phenobarbital), alcohol and opioids (such as codeine). The use of CNS depressants for recreational or non-medical purposes is risky because of the potential for abuse or overdose. These drugs can produce feelings of euphoria, which leads users to take more than prescribed or engage in risky behaviors such as driving under the influence. Long-term use of CNS depressants can lead to physical dependence and addiction, with symptoms such as irritability and anxiety when not taking them. Withdrawal from these drugs should always be done gradually under medical supervision to prevent serious side effects including seizures and delirium. It is important to remember that CNS depressants are powerful drugs with potentially dangerous side effects if abused or misused. It is best to only take these medications under medical supervision with careful monitoring for potential adverse reactions. If you suspect someone has taken too much of a CNS depressant drug seek help immediately by calling 911 or your local poison control center.