Final answer:
The nurse should caution against alcohol consumption while taking cyclobenzaprine to control muscle spasms in a client with low back pain.
Step-by-step explanation:
The nurse should include in the discharge teaching plan of a client with low back pain who is taking cyclobenzaprine to control muscle spasms caution against alcohol consumption while taking the medication. This is because cyclobenzaprine can increase the sedative effects of alcohol, causing excessive drowsiness and impaired coordination. It is important for the client to understand the potential risks and to avoid alcohol while taking this medication to ensure their safety.