The home care nurse is caring for an 80-year-old patient who is receiving carbidopa-levodopa, a dopaminergic drug used to treat parkinson's disease. the nurse knows that this drug may place the patient at increased risk for:

Based on the chart, what are the three most effective methods to protect against pregnancy?

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides. b) replication of their genomes does not involve proofreading. c) rna viruses can incorporate a variety of nonstandard bases. d) rna viruses are more sensitive to mutagens.

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