The nurse is instructing a client on the characteristics of central nervous system medications. Which characteristic should be included in this teaching?
1. Ability of the medications to cross the blood–brain barrier
2. Neurotransmitters
3. Function of a neuron
4. Location of synapses
Correct Answer: 1
Rationale 1: CNS drugs must be designed with the capability of penetrating the blood–brain barrier to produce their effects.
Rationale 2: The nurse does not need to instruct the client about neurotransmitters.
Rationale 3: The nurse does not need to instruct the client about the function of a neuron.
Rationale 4: The nurse does not need to instruct the client about the location of synapses.
Global Rationale: CNS drugs must be designed with the capability of penetrating the blood–brain barrier to produce their effects. The nurse does not need to instruct the client about neurotransmitters, the function of the neurons, or the location of synapses.
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