[Expert Solution]: The nurse is discussing the preclinical…

The nurse is discussing the preclinical research stage of drug development with a group of nursing students. Which statement indicates to the nurse that teaching was effective? Select all that apply. A drug may not proceed past the preclinical stage because they are found to be too toxic or just ineffective Health Canada is responsible for extensive testing for safety before the pharmaceutical company can begin the preclinical research stage of development At the end of the preclinical research stage, patient variability is determined and potential drug-to-drug interactions are examined The preclinical stage of research involves extensive testing on animals in the laboratory to determine if the drug will cause harm to humans