The nurse is working in a clinic that uses investigational protocols to determine the effectiveness of new medications. Which information regarding the use of placebo medications should the nurse teach the clients?
1. Placebos are not used in investigational protocols because of ethical considerations.
2. The placebo will contain the active ingredient under study in the protocol.
3. Clients in the control group will receive a medication that does not help the disease.
4. Clients should insist on not being placed in the group that gets the placebo pill.
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