Patient taking pembrolizumab needs additional teaching of "I can expect to have more loose stools and diarrhea at the beginning of treatment".The correct option to this question is B.
Pembrolizumab, sold under the brand name Keytruda, is a humanized antibody used in cancer immunotherapy that treats melanoma, lung cancer, head and neck cancer, Hodgkin lymphoma, stomach cancer, cervical cancer, and certain types of breast cancer. It is given by slow injection into a vein.
The most typical clinical symptom of immune-mediated colitis brought on by pembrolizumab and other immune checkpoint inhibitors is diarrhea. The average time between starting a medicine and the onset of diarrhea is 8 weeks.
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